{"title":"KOMATSU MUFFLERS","description":"\u003ch2\u003eKOMATSU MUFFLERS\u003c\/h2\u003e\n\u003cp\u003eKomatsu diesel engines are built for durability, high torque output, and long operating cycles in construction and mining environments. Engine components must maintain precise tolerances, proper lubrication control, and stable combustion conditions to support reliable performance under load.\u003c\/p\u003e\n\n\u003cp\u003eWQC Parts supplies high-quality \u003cstrong\u003eaftermarket komatsu mufflers\u003c\/strong\u003e engineered for heavy-duty applications where uptime, durability, and fitment accuracy are critical. Our engine components are selected to support dependable operation across mid-size construction fleets and large production equipment.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Engine Component Quality Matters\u003c\/h3\u003e\n\u003cp\u003eEngine systems operate under extreme heat, pressure, and mechanical stress. Inferior components can lead to oil consumption, compression loss, overheating, or premature internal wear. Properly manufactured replacement parts help restore performance and extend service life.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eMaintains compression and combustion efficiency\u003c\/li\u003e\n\u003cli\u003eSupports proper lubrication and cooling\u003c\/li\u003e\n\u003cli\u003eReduces internal friction and wear\u003c\/li\u003e\n\u003cli\u003eProtects crankshaft, camshaft, and valvetrain components\u003c\/li\u003e\n\u003cli\u003eHelps prevent costly engine overhauls\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDesigned for Severe-Duty Operation\u003c\/h3\u003e\n\u003cp\u003eKomatsu engines frequently operate in dusty, high-load, and high-temperature conditions. Aftermarket engine parts must be dimensionally accurate and manufactured from materials suitable for sustained duty cycles. WQC Parts focuses on components selected for reliability in real-world operating environments.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Signs of Engine Component Wear\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLoss of power under load\u003c\/li\u003e\n\u003cli\u003eExcessive oil consumption\u003c\/li\u003e\n\u003cli\u003eHard starting or rough idle\u003c\/li\u003e\n\u003cli\u003eIncreased exhaust smoke\u003c\/li\u003e\n\u003cli\u003eUnusual knocking or vibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose WQC Parts?\u003c\/h3\u003e\n\u003cp\u003eWQC Parts supports contractors, fleet managers, and rebuild shops with aftermarket Komatsu engine components designed for dependable performance.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAftermarket parts selected for heavy equipment applications\u003c\/li\u003e\n\u003cli\u003eFitment assistance to help confirm compatibility\u003c\/li\u003e\n\u003cli\u003eCompetitive pricing for maintenance and rebuild programs\u003c\/li\u003e\n\u003cli\u003eFast fulfillment to reduce downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eBrowse our selection of komatsu mufflers below or contact WQC Parts for assistance identifying the correct replacement for your Komatsu machine.\u003c\/p\u003e","products":[{"product_id":"komatsu-6631-11-5752-muffler-km-6631-11-5752","title":"Komatsu 6631-11-5752 Muffler","description":"\u003ch2\u003eKomatsu 6631-11-5752 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6631-11-5752 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6631-11-5752\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6631-11-5752\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6631-11-5752 \/ 6631115752\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D60A, D60P, D60PL, D65A, D65E.\u003c\/p\u003e   \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42589727031392,"sku":"KM-6631-11-5752","price":486.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6631-11-5751-muffler-km-6631-11-5751","title":"Komatsu 6631-11-5751 Muffler","description":"\u003ch2\u003eKomatsu 6631-11-5751 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6631-11-5751 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6631-11-5751\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6631-11-5751\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6631-11-5751 \/ 6631115751\u003c\/li\u003e \u003c\/ul\u003e   \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42589727195232,"sku":"KM-6631-11-5751","price":486.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6745-11-5720-muffler-km-6745-11-5720","title":"Komatsu 6745-11-5720 Muffler","description":"\u003ch2\u003eKomatsu 6745-11-5720 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6745-11-5720 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6745-11-5720\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6745-11-5720\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6745-11-5720 \/ 6745115720\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC300, PC300HD, PC300LC, PC300LL, PC340LC, PC340NLC, PC350, PC350LC, PC350LL, PC350NLC, SAA6D114E-3A, SAA6D114E-3D, SAA6D114E, SAA6D114E-3A-WT, SAA6D114E-3D-WT, SAA6D114E-3LL.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 60001-60021, 60001-UP, 50001-UP (ECOT3), A86001-UP, A88001-UP, K45001-UP, 30001-UP (ECOT3), K50001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636718473312,"sku":"KM-6745-11-5720","price":493.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/6745-11-5720_komatsu-parts-online_7541c8f1-8b48-4b5b-b2d4-2c4487b7abda.png?v=1771903587"},{"product_id":"komatsu-6754-11-5210-muffler-km-6754-11-5210","title":"Komatsu 6754-11-5210 Muffler","description":"\u003ch2\u003eKomatsu 6754-11-5210 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6754-11-5210 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6754-11-5210\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6754-11-5210\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6754-11-5210 \/ 6754115210\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e WA380, WA380Z, SAA6D107E-1D, SAA6D107E-1L, SAA6D107E-1D-W, SAA6D107E-1DA.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 65001-65948 (ECOT3), 65001-65948 (ECOT3, FOR EU), 65001-65948 (ECOT3, FOR NORTH AMERICA), 65949-UP (EU STANDARD MACHINE), 65949-UP (NORTH AMERICA STANDARD MACHINE), 65949-UP, A53001-UP, A54001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e WHEEL LOADERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636730663008,"sku":"KM-6754-11-5210","price":975.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6743-11-5721-muffler-km-6743-11-5721","title":"Komatsu 6743-11-5721 Muffler","description":"\u003ch2\u003eKomatsu 6743-11-5721 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6743-11-5721 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6743-11-5721\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6743-11-5721\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6743-11-5721 \/ 6743115721\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC300, PC300HD, PC300LC, PC300LL, PC350, PC350LC, SAA6D114E, SAA6D114E-2A-A.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 40001-UP (OVERSEAS VERSION), 40001-UP (ROPS CAB, A85001-UP, 20001-UP (OVERSEAS VERSION).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636731678816,"sku":"KM-6743-11-5721","price":601.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6743-11-5720-muffler-km-6743-11-5720","title":"Komatsu 6743-11-5720 Muffler","description":"\u003ch2\u003eKomatsu 6743-11-5720 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6743-11-5720 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6743-11-5720\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6743-11-5720\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6743-11-5720 \/ 6743115720\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC300, PC300LC, PC340LC, PC340NLC, PC350, PC350LC, PC360, PC380LC, SAA6D114E-2A, SAA6D114E-2A-A.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 40001-UP (OVERSEAS VERSION), 40001-UP (ROPS CAB, 40001-UP, K40001-UP, 20001-UP (OVERSEAS VERSION), 20001-UP, 37715-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636731711584,"sku":"KM-6743-11-5720","price":546.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6743-11-5340-muffler-km-6743-11-5340","title":"Komatsu 6743-11-5340 Muffler","description":"\u003ch2\u003eKomatsu 6743-11-5340 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6743-11-5340 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6743-11-5340\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6743-11-5340\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6743-11-5340 \/ 6743115340\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e WA380, WA400, SAA6D114E-2B, SAA6D114E-2B-A.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e A52001-UP, WA400-5H50051 - UP, A40001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e WHEEL LOADERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636731744352,"sku":"KM-6743-11-5340","price":631.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6711-11-5711-muffler-km-6711-11-5711","title":"Komatsu 6711-11-5711 Muffler","description":"\u003ch2\u003eKomatsu 6711-11-5711 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6711-11-5711 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6711-11-5711\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6711-11-5711\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6711-11-5711 \/ 6711115711\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D80A, D80E, D80P, D85A, D85E, D85P.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 25001-UP, 2001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e BULLDOZERS.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636734562400,"sku":"KM-6711-11-5711","price":627.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6222-11-5410-muffler-km-6222-11-5410","title":"Komatsu 6222-11-5410 Muffler","description":"\u003ch2\u003eKomatsu 6222-11-5410 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6222-11-5410 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6222-11-5410\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6222-11-5410\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6222-11-5410 \/ 6222115410\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC300, PC300HD, PC300LC, PC300NLC, PC310, PC310LC, PC350, PC350LC, SA6D108-1A, SA6D108-1A-7C, SA6D108-1A-7T, SAA6D108E-2A.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 20001-UP (MIGHTY SPEC), 20001-UP (OVERSEAS VERSION), 20001-UP, 30001-UP, 20001-UP (CUSTOM SPEC.), K20001-UP, A70501-UP, 10001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636738068576,"sku":"KM-6222-11-5410","price":325.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6221-11-5210-muffler-km-6221-11-5210","title":"Komatsu 6221-11-5210 Muffler","description":"\u003ch2\u003eKomatsu 6221-11-5210 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6221-11-5210 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6221-11-5210\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6221-11-5210\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6221-11-5210 \/ 6221115210\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e WA350, WA380, WA400, WA420, S6D108-1E-6H, S6D108-1E-6N, S6D108-1E-6S, S6D108-1F, SA6D108-1C-7D, SA6D108-1C-7H, SA6D108-1C-7S, SA6D108-1G.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 60001-62999, 50001-52999, 50001-52999 (OVERSEAS VERSION), 53001-UP, 50001-52999 (FOR C.I.S. -30CENT. SPEC.), 53001-UP (OVERSEAS VERSION).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e WHEEL LOADERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636738691168,"sku":"KM-6221-11-5210","price":380.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6209-11-5221-muffler-km-6209-11-5221","title":"Komatsu 6209-11-5221 Muffler","description":"\u003ch2\u003eKomatsu 6209-11-5221 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6209-11-5221 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6209-11-5221\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6209-11-5221\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6209-11-5221 \/ 6209115221\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC220, PC220LC, BR300J, BR310JG, SA6D95L-1C, SA6D95L-1C-C, SA6D95L-1C-L.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 35001-UP, 35001-UP (CUSTOM SPEC.), A70001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines, Mobile Crushers and Recyclers.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636741836896,"sku":"KM-6209-11-5221","price":339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6209-11-5220-muffler-km-6209-11-5220","title":"Komatsu 6209-11-5220 Muffler","description":"\u003ch2\u003eKomatsu 6209-11-5220 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6209-11-5220 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6209-11-5220\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6209-11-5220\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6209-11-5220 \/ 6209115220\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e BR300J, BR310JG, PC220, PC220-5C, PC220LC, PC220LC-5C, SA6D95L-1C, SA6D95L-1C-C, SA6D95L-1C-L.\u003c\/p\u003e   \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636741869664,"sku":"KM-6209-11-5220","price":364.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6209-11-5211-muffler-km-6209-11-5211","title":"Komatsu 6209-11-5211 Muffler","description":"\u003ch2\u003eKomatsu 6209-11-5211 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6209-11-5211 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6209-11-5211\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6209-11-5211\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6209-11-5211 \/ 6209115211\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC200, PC200LC, BR200J, BR200R, BR200S, S6D95L-1JJ, S6D95L-1U, BR200, S6D95L-1U-C, S6D95L-1U-L.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 45001-UP, A70001-UP, 45001-UP (CUSTOM SPEC.).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines, Mobile Crushers and Recyclers.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636741902432,"sku":"KM-6209-11-5211","price":364.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6209-11-5210-muffler-km-6209-11-5210","title":"Komatsu 6209-11-5210 Muffler","description":"\u003ch2\u003eKomatsu 6209-11-5210 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6209-11-5210 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6209-11-5210\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6209-11-5210\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6209-11-5210 \/ 6209115210\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e BR200, BR200J, BR200R, BR200S, PC200, PC200-5C, PC200-5X, PC200-5Z, PC200LC, PC200LC-5C, PC200LC-5X, S6D95L-1JJ, S6D95L-1U, S6D95L-1U-C, S6D95L-1U-L.\u003c\/p\u003e   \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636741935200,"sku":"KM-6209-11-5210","price":364.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6156-11-5110-muffler-km-6156-11-5110","title":"Komatsu 6156-11-5110 Muffler","description":"\u003ch2\u003eKomatsu 6156-11-5110 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6156-11-5110 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6156-11-5110\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6156-11-5110\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6156-11-5110 \/ 6156115110\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e WA430, WA470, SAA6D125E-3A-8M, SAA6D125E-3H-8M.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 60001-UP, S\/N 60001-UP, 70001-UP, WA470-5H50051 - UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e WHEEL LOADERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636745212000,"sku":"KM-6156-11-5110","price":782.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6151-11-5720-muffler-km-6151-11-5720","title":"Komatsu 6151-11-5720 Muffler","description":"\u003ch2\u003eKomatsu 6151-11-5720 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6151-11-5720 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6151-11-5720\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6151-11-5720\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6151-11-5720 \/ 6151115720\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC300, PC300LC, S6D125-1S, S6D125-1S-FA.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 12001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636746195040,"sku":"KM-6151-11-5720","price":566.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6137-11-5610-muffler-km-6137-11-5610","title":"Komatsu 6137-11-5610 Muffler","description":"\u003ch2\u003eKomatsu 6137-11-5610 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6137-11-5610 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6137-11-5610\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6137-11-5610\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6137-11-5610 \/ 6137115610\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e JV100WA, JV100WP, S6D105-1JJ, S6D105-1NN, S6D105-1PP, S6D105-1QQ.\u003c\/p\u003e   \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636750913632,"sku":"KM-6137-11-5610","price":443.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6131-11-5611-muffler-km-6131-11-5611","title":"Komatsu 6131-11-5611 Muffler","description":"\u003ch2\u003eKomatsu 6131-11-5611 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6131-11-5611 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6131-11-5611\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6131-11-5611\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6131-11-5611 \/ 6131115611\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D40A, D40AF, D40PF, D40PL, D40PLF, D45A, D45P.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 1501-UP, 2201-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e BULLDOZERS.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636751568992,"sku":"KM-6131-11-5611","price":698.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6131-11-5610-muffler-km-6131-11-5610","title":"Komatsu 6131-11-5610 Muffler","description":"\u003ch2\u003eKomatsu 6131-11-5610 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6131-11-5610 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6131-11-5610\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6131-11-5610\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6131-11-5610 \/ 6131115610\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D40A, D40AF, D40PF, D40PL, D40PLF.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 1501-UP, 2201-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e BULLDOZERS.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636751601760,"sku":"KM-6131-11-5610","price":1032.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6128-11-5561-muffler-km-6128-11-5561","title":"Komatsu 6128-11-5561 Muffler","description":"\u003ch2\u003eKomatsu 6128-11-5561 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6128-11-5561 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6128-11-5561\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6128-11-5561\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6128-11-5561 \/ 6128115561\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D355A, D355A-3X, SA6D155-4A.\u003c\/p\u003e   \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636755828832,"sku":"KM-6128-11-5561","price":1156.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6128-11-5560-muffler-km-6128-11-5560","title":"Komatsu 6128-11-5560 Muffler","description":"\u003ch2\u003eKomatsu 6128-11-5560 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6128-11-5560 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6128-11-5560\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6128-11-5560\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6128-11-5560 \/ 6128115560\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D355A, SA6D155-4A.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 1010-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e BULLDOZERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636755861600,"sku":"KM-6128-11-5560","price":1156.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6127-11-5705-muffler-set-km-6127-11-5705","title":"Komatsu 6127-11-5705 Muffler Set","description":"\u003ch2\u003eKomatsu 6127-11-5705 Muffler Set\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6127-11-5705 Muffler Set\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6127-11-5705\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6127-11-5705\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler Set\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6127-11-5705 \/ 6127115705\u003c\/li\u003e \u003c\/ul\u003e   \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636756549728,"sku":"KM-6127-11-5705","price":1785.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6631-11-5754-muffler-km-6631-11-5754","title":"Komatsu 6631-11-5754 Muffler","description":"\u003ch2\u003eKomatsu 6631-11-5754 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6631-11-5754 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6631-11-5754\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6631-11-5754\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6631-11-5754 \/ 6631115754\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D60A, D60P, D60PL, D65A, D65E.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 20006-UP, 20295-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e BULLDOZERS.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636798918752,"sku":"KM-6631-11-5754","price":549.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6743-11-5341-muffler-km-6743-11-5341","title":"Komatsu 6743-11-5341 Muffler","description":"\u003ch2\u003eKomatsu 6743-11-5341 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6743-11-5341 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6743-11-5341\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6743-11-5341\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6743-11-5341 \/ 6743115341\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e WA380, WA400, SAA6D114E-2B, SAA6D114E-2B-A.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 60001-UP (OVERSEAS VERSION), 60001-UP, H50051 - UP, S\/N 60001-UP, 70001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e WHEEL LOADERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636805570656,"sku":"KM-6743-11-5341","price":669.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6251-11-9110-muffler-km-6251-11-9110","title":"Komatsu 6251-11-9110 Muffler","description":"\u003ch2\u003eKomatsu 6251-11-9110 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6251-11-9110 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6251-11-9110\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6251-11-9110\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6251-11-9110 \/ 6251119110\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e HM250, HM300, D85EX, D85PX, WA450, WA470, WA480, PC400, PC400LC, PC450, PC450LC, PC550LC, SAA6D125E-5F, SAA6D125E-5D, SAA6D125E-5B, SAA6D125E-5C, SAA6D125E-5E, SAA6D125E, BR580JG, SAA6D125E-5A, and 2 additional Komatsu models.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 2001-UP, 2001-2784 (ECOT3), 2001-2784 (ECOT3, FOR EU), 2785-UP, A11001 AND UP, 11001-11608 (ECOT3), 11001-11608 (ECOT3, FOR EU), 11609-UP (ECOT3).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e DUMP TRUCKS, BULLDOZERS, WHEEL LOADERS, EXCAVATORS, Engines, Mobile Crushers and Recyclers.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636809076832,"sku":"KM-6251-11-9110","price":525.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6251-11-5440-muffler-km-6251-11-5440","title":"Komatsu 6251-11-5440 Muffler","description":"\u003ch2\u003eKomatsu 6251-11-5440 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6251-11-5440 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6251-11-5440\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6251-11-5440\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6251-11-5440 \/ 6251115440\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC400, PC400LC, PC400LCSE, PC450, PC450LC, PC500LC, PC550LC, SAA6D125E-5F, SAA6D125E-5-FR.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 70001-70003, 70001-UP, 75001-UP, A88001-UP, 75001-UP (SUPER LONG FRONT SPEC.), J30001-UP, A10001-UP, 75979-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636809109600,"sku":"KM-6251-11-5440","price":904.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/6251-11-5440_komatsu-parts-online_21ddb015-54fe-4626-acc3-b09bb59661b5.png?v=1771898157"},{"product_id":"komatsu-6222-13-5412-muffler-km-6222-13-5412","title":"Komatsu 6222-13-5412 Muffler","description":"\u003ch2\u003eKomatsu 6222-13-5412 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6222-13-5412 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6222-13-5412\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6222-13-5412\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6222-13-5412 \/ 6222135412\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC300, PC300LC, PC300SC, PC340, PC340LC, PC340NLC, PC350, PC350LC, PC380LC, SAA6D108E-2A, BR300S, SAA6D108E-2A-C, SAA6D108E-2A-C8, SAA6D108E-2A-P, SAA6D108E-2A-P8.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 30001-UP, 30001-UP (CUSTOM SPEC.), 10001-UP, K30001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines, Mobile Crushers and Recyclers.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636809961568,"sku":"KM-6222-13-5412","price":384.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6222-13-5411-muffler-km-6222-13-5411","title":"Komatsu 6222-13-5411 Muffler","description":"\u003ch2\u003eKomatsu 6222-13-5411 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6222-13-5411 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6222-13-5411\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6222-13-5411\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6222-13-5411 \/ 6222135411\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC300, PC300LC, PC300SC, PC340, PC340LC, PC340NLC, PC350, PC350LC, PC380LC, SAA6D108E-2A, BR300S, SAA6D108E-2A-C, SAA6D108E-2A-C8, SAA6D108E-2A-P, SAA6D108E-2A-P8.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 30001-UP, 30001-UP (CUSTOM SPEC.), 10001-UP, K30001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines, Mobile Crushers and Recyclers.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636809994336,"sku":"KM-6222-13-5411","price":408.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6222-13-5410-muffler-km-6222-13-5410","title":"Komatsu 6222-13-5410 Muffler","description":"\u003ch2\u003eKomatsu 6222-13-5410 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6222-13-5410 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6222-13-5410\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6222-13-5410\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6222-13-5410 \/ 6222135410\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e BR300S, PC300, PC300-6Z, PC300LC, PC300LC-6Z, PC300SC, PC340-6K, PC340LC-6K, PC340LC-6K-J, PC340NLC, PC340NLC-6K, PC350, PC350-6Z, PC350LC, PC350LC-6Z, PC380LC-6K, PC380LC-6K-J, SAA6D108E-2A, SAA6D108E-2A-C, SAA6D108E-2A-C8, and 2 additional Komatsu models.\u003c\/p\u003e   \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636810027104,"sku":"KM-6222-13-5410","price":408.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6217-11-5610-muffler-km-6217-11-5610","title":"Komatsu 6217-11-5610 Muffler","description":"\u003ch2\u003eKomatsu 6217-11-5610 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6217-11-5610 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6217-11-5610\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6217-11-5610\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6217-11-5610 \/ 6217115610\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e SA6D140E-3C, SA6D140E-3CM, SA6D140E-3J.\u003c\/p\u003e   \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636810551392,"sku":"KM-6217-11-5610","price":939.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6211-12-5560-muffler-km-6211-12-5560","title":"Komatsu 6211-12-5560 Muffler","description":"\u003ch2\u003eKomatsu 6211-12-5560 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6211-12-5560 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6211-12-5560\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6211-12-5560\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6211-12-5560 \/ 6211125560\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D155C, D355C, SA6D140E-2A, SA6D140E-2D, SA6D140E-2B, SA6D140-2C-G, SA6D140-2C, SA6D140-2C-5G, SA6D140-2D-5G, SA6D140-2D-G, SA6D140E-2A-7D.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 15686-UP (SA6D140-2 ENG. INSTALLED (-50CENT. SPEC.)), 15686-UP (SA6D140-2 ENG. INSTALLED), 14263-UP (SA6D140-2 ENG. INSTALLED (-30CENT. SPEC.)), 14263-UP (SA6D140-2 ENG. INSTALLED (-50CENT. SPEC.)).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e PIPELAYERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636811534432,"sku":"KM-6211-12-5560","price":1349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6156-11-5111-muffler-km-6156-11-5111","title":"Komatsu 6156-11-5111 Muffler","description":"\u003ch2\u003eKomatsu 6156-11-5111 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6156-11-5111 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6156-11-5111\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6156-11-5111\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6156-11-5111 \/ 6156115111\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e WA430, WA450, WA470, SAA6D125E-3A, SAA6D125E-3A-8W, SAA6D125E-3H-8M.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 60001-UP (OVERSEAS VERSION), A36001-UP, 70001-UP (OVERSEAS VERSION).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e WHEEL LOADERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636814352480,"sku":"KM-6156-11-5111","price":742.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6152-12-8532-muffler-km-6152-12-8532","title":"Komatsu 6152-12-8532 Muffler","description":"\u003ch2\u003eKomatsu 6152-12-8532 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6152-12-8532 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6152-12-8532\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6152-12-8532\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6152-12-8532 \/ 6152128532\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e WA450, WA450L, SA6D125E-2C-S, SA6D125E-2C-S7, SA6D125E-2L, SA6D125E-2C-H7, SA6D125E-2C-L7.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 63001-UP, 60001-62999, 53001-UP, 50001-52999, A31001-UP, 53001-UP (FOR NORTH AMERICA).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e WHEEL LOADERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636814516320,"sku":"KM-6152-12-8532","price":692.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6152-12-8531-muffler-km-6152-12-8531","title":"Komatsu 6152-12-8531 Muffler","description":"\u003ch2\u003eKomatsu 6152-12-8531 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6152-12-8531 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6152-12-8531\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6152-12-8531\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6152-12-8531 \/ 6152128531\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e WA450, WA450L, WA470, SA6D125E-2C-S, SA6D125E-2C-S7, SA6D125E-2C-H7, SA6D125E-2L, SA6D125E-2C-L7.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 63001-UP, 60001-62999, 53001-UP, 50001-52999, 53001-UP (FOR NORTH AMERICA), 25233-UP, WA470H20942-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e WHEEL LOADERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636814549088,"sku":"KM-6152-12-8531","price":730.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6152-12-5720-muffler-km-6152-12-5720","title":"Komatsu 6152-12-5720 Muffler","description":"\u003ch2\u003eKomatsu 6152-12-5720 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6152-12-5720 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6152-12-5720\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6152-12-5720\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6152-12-5720 \/ 6152125720\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC400, PC400LC, PC450, PC450LC, PW400MH, SA6D125E-2A-C7, BR500JG, SA6D125E-2A, BR200T, BR200T-1A, SA6D125E-2A-C, SA6D125E-2A-K7, SA6D125E-2A-KU.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 30001-UP, 30001-UP (-50CENT. SPEC.), 30001-UP (EXCEL SPEC.), A83001-A84000, A84001-A85000, 30001-UP (OFFSET SPEC.), 30001-UP (PIPE LOOPER SPEC.), 10001-UP (OVERSEAS VERSION).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines, Mobile Crushers and Recyclers.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636814581856,"sku":"KM-6152-12-5720","price":605.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6151-13-5720-muffler-km-6151-13-5720","title":"Komatsu 6151-13-5720 Muffler","description":"\u003ch2\u003eKomatsu 6151-13-5720 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6151-13-5720 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6151-13-5720\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6151-13-5720\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6151-13-5720 \/ 6151135720\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC400, PC400HD, PC400LC, PC410, PC410LC, S6D125-1VV, S6D125-1VV-C, S6D125-1VV-FA, S6D125-1VV-FC, S6D125-1VV-FK, S6D125-1VV-FR, S6D125-1VV-FT, S6D125-1VV-K, S6D125-1VV-R, S6D125-1VV-T.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 20001-UP (MIGHTY SPEC), 10351-UP, 20001-UP (OVERSEAS VERSION), 20001-UP (CUSTOM SPEC.), 20001-UP (-50CENT. 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Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636815073376,"sku":"KM-6151-13-5720","price":440.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6128-11-5562-muffler-km-6128-11-5562","title":"Komatsu 6128-11-5562 Muffler","description":"\u003ch2\u003eKomatsu 6128-11-5562 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6128-11-5562 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6128-11-5562\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6128-11-5562\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6128-11-5562 \/ 6128115562\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D355A, SA6D155-4A.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 1010-UP, 12622-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e BULLDOZERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636816777312,"sku":"KM-6128-11-5562","price":1101.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6127-11-5721-muffler-km-6127-11-5721","title":"Komatsu 6127-11-5721 Muffler","description":"\u003ch2\u003eKomatsu 6127-11-5721 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6127-11-5721 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6127-11-5721\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6127-11-5721\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6127-11-5721 \/ 6127115721\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D155C, S6D155-4A, S6D155-4B, S6D155-4S, S6D155-4-R, S6D155-4AA, S6D155-4S-DR.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 31416-UP (S6D155-4 ENG. INSTALLED (-50CENT. SPEC.)), 15686-UP (S6D155-4 ENG. INSTALLED (-50CENT. SPEC.)), 15686-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e PIPELAYERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636817760352,"sku":"KM-6127-11-5721","price":1147.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"},{"product_id":"komatsu-6112-12-5311-muffler-km-6112-12-5311","title":"Komatsu 6112-12-5311 Muffler","description":"\u003ch2\u003eKomatsu 6112-12-5311 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6112-12-5311 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6112-12-5311\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6112-12-5311\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6112-12-5311 \/ 6112125311\u003c\/li\u003e \u003c\/ul\u003e   \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. 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It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6156-11-5280\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6156-11-5280\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6156-11-5280 \/ 6156115280\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC400, PC400LC, PC450, PC450LC, SAA6D125E-3K-8M.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 50001-UP, 20001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636883132512,"sku":"KM-6156-11-5280","price":497.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/6156-11-5280_komatsu-parts-online_ddf613a3-9578-4ec2-a8fc-0d7ac06c40a1.png?v=1771892885"},{"product_id":"komatsu-6156-11-5281-muffler-km-6156-11-5281","title":"Komatsu 6156-11-5281 Muffler","description":"\u003ch2\u003eKomatsu 6156-11-5281 Muffler\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6156-11-5281 Muffler\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6156-11-5281\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6156-11-5281\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6156-11-5281 \/ 6156115281\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e PC400, PC400LC, PC450, PC450LC, SAA6D125E-3K, SAA6D125E-3K-8K, SAA6D125E-3K-8M, SAA6D125E-3K-8W.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 50001-UP (EXTREME COLD TERRAIN SPEC.), 50001-UP (OVERSEAS VERSION), 50001-UP (OFFSET SPEC.EXTREME COLD TERRAIN SPEC.), A86001-UP, 20001-UP (OVERSEAS VERSION), K40001-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e EXCAVATORS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636891816032,"sku":"KM-6156-11-5281","price":760.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/6156-11-5281_komatsu-parts-online_5f4fa69c-5658-4b5a-af2f-b484570f969e.png?v=1771892714"},{"product_id":"komatsu-6128-11-5801-muffler-assembly-km-6128-11-5801","title":"Komatsu 6128-11-5801 Muffler Assembly","description":"\u003ch2\u003eKomatsu 6128-11-5801 Muffler Assembly\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 6128-11-5801 Muffler Assembly\u003c\/strong\u003e is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for engine, fuel, air, and exhaust system applications where the part number, machine model, and serial range match the required application.\u003c\/p\u003e  \u003ch3\u003ePart Information\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 6128-11-5801\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-6128-11-5801\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eProduct type:\u003c\/strong\u003e Muffler Assembly\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSearch reference:\u003c\/strong\u003e 6128-11-5801 \/ 6128115801\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D355A, SA6D155-4A.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 1010-UP.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e BULLDOZERS, Engines.\u003c\/p\u003e  \u003ch3\u003eFitment Notes\u003c\/h3\u003e \u003cp\u003eAlways confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.\u003c\/p\u003e  \u003ch3\u003eWhy Buy from WQC Parts?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAftermarket Komatsu replacement parts organized by part number and product type.\u003c\/li\u003e \u003cli\u003eSupport for fitment review using machine model, serial number, and photos when needed.\u003c\/li\u003e \u003cli\u003eCompetitive pricing for repair shops, equipment owners, and fleet maintenance teams.\u003c\/li\u003e \u003cli\u003eReliable sourcing focused on reducing downtime and keeping machines working.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.\u003c\/p\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42636896403552,"sku":"KM-6128-11-5801","price":1980.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708"}],"url":"https:\/\/wqcparts.com\/fr\/collections\/komatsu-mufflers.oembed","provider":"WQC PARTS","version":"1.0","type":"link"}