{"product_id":"hitachi-4259297-bushing-hitachi-excavator-parts-km-4259297","title":"Hitachi 4259297 Bushing | Hitachi Excavator Parts","description":"\u003cp\u003eThe 4259297 bushing is an essential replacement part for Hitachi machinery. Designed to meet the highest industry standards, this bushing ensures optimal performance and durability for your equipment. Crafted with precision and expertise, it guarantees a perfect fit and seamless integration with your Hitachi machine. Made from top-quality materials, this bushing is engineered to withstand the most demanding operating conditions. Its robust construction enhances the longevity of your machinery, reducing the need for frequent replacements and minimizing downtime. The 4259297 bushing is meticulously designed to provide superior functionality and reliability. Its smooth surface finish and precise dimensions contribute to smooth operation and reduced friction, resulting in improved efficiency and performance of your Hitachi equipment. Whether you are a professional contractor or an equipment enthusiast, this bushing is a must-have for maintaining the optimal functionality of your Hitachi machinery. Invest in the 4259297 bushing for long-lasting performance and peace of mind.\u003c\/p\u003e \u003chr\u003e \u003ch2\u003eHitachi 4259297 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 4259297\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eSKU:\u003c\/strong\u003e KM-4259297\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":42730512023648,"sku":"HIT-4259297","price":639.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/2922\/4032\/files\/4259297_komatsu-parts-online_155e8ae9-319b-419f-aaad-718ccefe02d6.png?v=1779903639","url":"https:\/\/wqcparts.com\/products\/hitachi-4259297-bushing-hitachi-excavator-parts-km-4259297","provider":"WQC PARTS","version":"1.0","type":"link"}