{"product_id":"komatsu-6631-21-4370-bushing-km-6631-21-4370","title":"Komatsu 6631-21-4370 Bushing","description":"Alternate Part #6631214370\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003e \u003cp\u003eThe 6631-21-4370 bushing is a high-quality replacement part designed specifically for Komatsu machinery. Crafted with precision and durability in mind, this bushing ensures optimal performance and longevity for your equipment.\u003c\/p\u003e \u003cp\u003eEngineered to meet or exceed OEM specifications, this bushing guarantees a perfect fit and seamless integration into your Komatsu machine. It is compatible with a wide range of models, making it a versatile choice for various applications.\u003c\/p\u003e \u003cp\u003eConstructed from top-grade materials, this bushing offers exceptional strength and resistance to wear. Its robust design allows it to withstand heavy loads, extreme temperatures, and harsh environments, ensuring reliable performance even in the most demanding conditions.\u003c\/p\u003e \u003cp\u003eWith its precise dimensions and accurate machining, installation of this bushing is quick and hassle-free. It is designed to provide a secure and stable connection, reducing vibration and minimizing the risk of component failure.\u003c\/p\u003e \u003cp\u003eRegular maintenance and replacement of worn-out bushings are essential to keep your Komatsu equipment operating at its best. By choosing the 6631-21-4370 bushing, you can be confident in the quality and reliability of your replacement part.\u003c\/p\u003e \u003cp\u003eUpgrade your Komatsu machinery with the 6631-21-4370 bushing today and experience enhanced performance, increased productivity, and extended equipment lifespan.\u003c\/p\u003e \u003c\/div\u003e \u003chr\u003e \u003ch2\u003eKomatsu 6631-21-4370 Bushing Specifications \u0026amp; Fitment\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eWhat it is:\u003c\/strong\u003e Heavy-equipment bushing designed for tight-tolerance pivot joints where wear control and alignment matter.\u003c\/p\u003e \u003cul\u003e   \u003cli\u003e \u003cstrong\u003ePart number:\u003c\/strong\u003e 6631-21-4370\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eSKU:\u003c\/strong\u003e KM-6631-21-4370\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eTypical use:\u003c\/strong\u003e Boom\/arm\/bucket linkages, work equipment pivots, and high-wear joints.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eKey measurements to confirm\u003c\/h3\u003e \u003cp\u003eTo ensure correct fit, match the following measurements to your machineTMs worn component or OEM spec:\u003c\/p\u003e \u003cul\u003e   \u003cli\u003e \u003cstrong\u003eInside Diameter (ID):\u003c\/strong\u003e ___\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eOutside Diameter (OD):\u003c\/strong\u003e ___\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eOverall Length:\u003c\/strong\u003e ___\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eQuality notes\u003c\/h3\u003e \u003cul\u003e   \u003cli\u003eDesigned for consistent clearance and long service life when installed with proper lubrication.\u003c\/li\u003e   \u003cli\u003eReplace pins and bushings as a set when wear is uneven to prevent premature failure.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eInstallation tip\u003c\/h3\u003e \u003cp\u003eMeasure the bore, pin, and bushing after press-fit. Use proper tooling and lubrication, and re-check end-play after assembly.\u003c\/p\u003e \u003cp\u003e\u003cem\u003eNeed help confirming dimensions?\u003c\/em\u003e Send your machine model and the measurements above and weTMll verify fitment.\u003c\/p\u003e \u003ch3\u003eKomatsu maintenance notes (quick guide)\u003c\/h3\u003e \u003cul\u003e   \u003cli\u003e \u003cstrong\u003eEarly-life greasing:\u003c\/strong\u003e For excavators, Komatsu guidance calls for greasing work equipment pins every 10 hours for the first 50 hours, and greasing again after water work.\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eClearance control:\u003c\/strong\u003e Komatsu linkage manuals commonly specify pinbushing clearance targets and a typical service limit around 1.0 mm for many joints, often managed with shims.\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eTracked machines:\u003c\/strong\u003e For undercarriage track joints, pin\/bushing turning is condition- and wear-window dependent; abrasive sites can accelerate wear substantially.\u003c\/li\u003e \u003c\/ul\u003e","brand":"WQC","offers":[{"title":"Default Title","offer_id":42589727260768,"sku":"KM-6631-21-4370","price":61.19,"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-6631-21-4370-bushing-km-6631-21-4370","provider":"WQC PARTS","version":"1.0","type":"link"}