{"product_id":"komatsu-600-421-6120-thermostat-km-600-421-6120","title":"Komatsu 600-421-6120 Thermostat","description":"\u003ch2\u003eKomatsu 600-421-6120 Thermostat\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eKomatsu 600-421-6120 Thermostat\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\n\u003cstrong\u003eKomatsu part number:\u003c\/strong\u003e 600-421-6120\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWQC SKU:\u003c\/strong\u003e KM-600-421-6120\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Thermostat\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCommon machine models include:\u003c\/strong\u003e D21A, D21AG, D21P, D21PG, D21PL, D21Q, D21S, D31A, D31AM, D31E, D31P, D31PG, D31PL, D31PLL.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported serial ranges include:\u003c\/strong\u003e 75001-78603 (TRIMMING DOZER), 75001-78603, 60001-UP (STRAIGHT TILT DOZER), 60001-UP, 60001-UP (POWER ANGLE TILT DOZER), 62001-62453, 61001-61131, 60001-UP (DOMESTIC VERSION(HYDOROSHIFT TRANSMISSION)).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eReported category\/application areas:\u003c\/strong\u003e BULLDOZERS, WHEEL LOADERS, EXCAVATORS.\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":42636770017376,"sku":"KM-600-421-6120","price":98.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/komatsu-parts-worldwide.png?v=1769344708","url":"https:\/\/wqcparts.com\/products\/komatsu-600-421-6120-thermostat-km-600-421-6120","provider":"WQC PARTS","version":"1.0","type":"link"}