{"product_id":"komatsu-d40q403-cotter-pin-km-d40q403","title":"Komatsu D40Q403 Cotter Pin","description":"\u003cdiv\u003e \u003cp\u003eThe D40 q 403 cotter pin is an essential component in Komatsu machinery, designed to secure various parts and prevent them from loosening or disengaging during operation. This high-quality cotter pin is an OEM Komatsu part, ensuring a perfect fit and reliable performance in your equipment.\u003c\/p\u003e \u003cp\u003eCrafted with precision and durability in mind, the D40 q 403 cotter pin is made from top-grade materials, guaranteeing its longevity and resistance to wear and tear. Its robust construction allows it to withstand heavy loads and harsh working conditions, making it suitable for a wide range of applications.\u003c\/p\u003e \u003cp\u003eEasy to install and replace, this cotter pin is an excellent choice for maintenance and repair tasks. Its reliable locking mechanism ensures that the connected parts remain securely fastened, providing peace of mind during operation.\u003c\/p\u003e \u003cp\u003eThe D40 q 403 cotter pin is compatible with various Komatsu models, making it a versatile part to have in your inventory. Whether you are in the construction, mining, or agriculture industry, this cotter pin will prove to be a valuable addition to your equipment.\u003c\/p\u003e \u003cp\u003eTrust in the quality and performance of Komatsu parts, a renowned brand in the heavy machinery industry. With a commitment to excellence and customer satisfaction, Komatsu parts delivers reliable and durable products that meet the highest industry standards.\u003c\/p\u003e \u003cp\u003ePlease note that the\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-D40Q403\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":42589782278240,"sku":"KM-D40Q403","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-d40q403-cotter-pin-km-d40q403","provider":"WQC PARTS","version":"1.0","type":"link"}