{"product_id":"hitachi-4443880-bushing-hitachi-excavator-parts-hit-4443880","title":"Hitachi 4443880 Bushing | Hitachi Excavator Parts","description":"\u003cp\u003eIntroducing the 4443880 bushing, a high-quality replacement part manufactured by Hitachi. This durable bushing is designed to provide optimal performance and longevity for various machinery and equipment. Crafted with precision and attention to detail, the 4443880 bushing is engineered to withstand heavy loads, vibrations, and harsh working conditions. Its superior construction ensures enhanced durability, reducing the need for frequent replacements. Compatible with a wide range of machinery models, this versatile bushing is an ideal choice for professionals in industries such as construction, agriculture, and manufacturing. Its seamless installation process allows for quick and hassle-free replacement, minimizing downtime and maximizing productivity. The 4443880 bushing is engineered to deliver exceptional performance, providing smooth and efficient operation. Its advanced design helps to reduce friction and wear, ensuring optimal functionality and extending the lifespan of your machinery. Invest in the reliability and performance of the 4443880 bushing by Hitachi, a trusted brand known for its commitment to excellence. Trust this high-quality replacement part to keep your machinery running smoothly and efficiently, allowing you to focus on your work without interruptions.\u003c\/p\u003e \u003chr\u003e \u003ch2\u003eHitachi 4443880 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 4443880\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eSKU:\u003c\/strong\u003e HIT-4443880\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":42730512777312,"sku":"HIT-4443880","price":93.49,"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-4443880-bushing-hitachi-excavator-parts-hit-4443880","provider":"WQC PARTS","version":"1.0","type":"link"}