{"product_id":"komatsu-d40q678-cotter-pin-km-d40q678","title":"Komatsu D40Q678 Cotter Pin","description":"\u003cdiv\u003e \u003cp\u003eIntroducing the D40 q 678 cotter pin, an essential component of Komatsu parts, designed to provide durability and reliability for various applications. This cotter pin is a crucial part of securing and fastening components together, ensuring optimal performance and safety.\u003c\/p\u003e \u003cp\u003eManufactured with precision and expertise, the D40 q 678 cotter pin is engineered to withstand rigorous conditions and heavy-duty usage. Its high-quality construction guarantees longevity, reducing the need for frequent replacements and maintenance costs.\u003c\/p\u003e \u003cp\u003eCompatible with a wide range of Komatsu machinery, this cotter pin offers versatility and ease of installation. It is designed to fit seamlessly into your existing equipment, allowing for quick and efficient repairs or replacements.\u003c\/p\u003e \u003cp\u003eThe D40 q 678 cotter pin is crafted with utmost attention to detail, meeting the highest industry standards. Its exceptional strength and resistance to wear and tear ensure optimal performance even in demanding environments.\u003c\/p\u003e \u003cp\u003eWith its reliable and sturdy design, this cotter pin provides peace of mind, allowing you to focus on your work without worrying about component failure or breakdowns. It enhances the overall efficiency and productivity of your Komatsu machinery, reducing downtime and increasing operational effectiveness.\u003c\/p\u003e \u003cp\u003eInvest in the D40 q 678 cotter pin for a durable and dependable solution to your fastening needs. Trust Komatsu parts to deliver superior quality components that will exceed your expectations and stand the test of time.\u003c\/p\u003e \u003c\/div\u003e \u003chr\u003e \u003ch2\u003eKomatsu  Pin Specifications \u0026amp; Fitment\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eWhat it is:\u003c\/strong\u003e Heavy-equipment pin 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 See title\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eSKU:\u003c\/strong\u003e KM-D40Q678\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":42589781590112,"sku":"KM-D40Q678","price":0.43,"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-d40q678-cotter-pin-km-d40q678","provider":"WQC PARTS","version":"1.0","type":"link"}