{"product_id":"hitachi-4381857-bushing-hitachi-excavator-parts-hit-4381857","title":"Hitachi 4381857 Bushing | Hitachi Excavator Parts","description":"\u003cdiv\u003e \u003cp\u003eThis high-quality bushing from Hitachi parts is designed to provide optimal performance and durability for your machinery. Made with precision craftsmanship, this bushing is a reliable replacement for your worn-out or damaged bushing.\u003c\/p\u003e \u003cp\u003eDesigned to fit seamlessly into various Hitachi models, this bushing ensures smooth and efficient operation. Its sturdy construction guarantees long-lasting performance, even in demanding working conditions. This makes it an ideal choice for industries such as construction, mining, and agriculture.\u003c\/p\u003e \u003cp\u003eFeaturing advanced engineering, this bushing offers excellent resistance against wear, corrosion, and friction. It helps to reduce the risk of breakdowns and costly repairs, ensuring that your equipment operates at its peak efficiency. With this bushing installed, you can have peace of mind knowing that your machinery is well-maintained and protected.\u003c\/p\u003e \u003cp\u003eInstallation of this bushing is quick and hassle-free, fitting seamlessly into your existing machinery. Its compatibility with a wide range of Hitachi models makes it a versatile option for various applications. Whether you need a replacement for your excavator, bulldozer, or loader, this bushing is an excellent choice.\u003c\/p\u003e \u003cp\u003eInvest in the reliability and performance of Hitachi parts with this 4381857 bushing. Ensure the smooth operation of your machinery and minimize downtime with this high-quality replacement part. Order yours today and experience the difference it can make in your equipment's performance.\u003c\/p\u003e \u003c\/div\u003e \u003chr\u003e \u003ch2\u003eHitachi 4381857 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 4381857\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eSKU:\u003c\/strong\u003e HIT-4381857\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":42730512285792,"sku":"HIT-4381857","price":105.49,"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\/es\/products\/hitachi-4381857-bushing-hitachi-excavator-parts-hit-4381857","provider":"WQC PARTS","version":"1.0","type":"link"}