{"product_id":"707-99-67871-komatsu","title":"707-99-67871 Boom Cylinder Seal Kit for Komatsu PC400-8 PC450-8 | Ruijueparts","description":"\u003cul\u003e\u003c\/ul\u003e\n\u003ch2 class=\"sec-head\"\u003eProduct Description\u003c\/h2\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eLooking for a reliable solution to fix oil leaks or arm drifting on your heavy excavators? The 707-99-67871 Premium Aftermarket Boom Cylinder Seal Kit is engineered precisely for Komatsu 40-ton to 45-ton large excavators (rod: 110 mm \/ bore: 160 mm). This complete heavy-duty rebuild kit includes high-performance rod seals, piston seals, wear bands, and dust wipers to restore your main lift cylinders to peak hydraulic efficiency. At Ruijueparts, we back your fleet with a 30,000+ part number cross-reference database and flexible custom packaging options.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 class=\"section-title__title\" id=\"s0-2-1-25-5-20-1-101[1]-2-3-7[0]-4[0]-3[0]-11[1]-1-5-title\"\u003e\u003cspan class=\"ux-layout-section-module-evo__title\" data-testid=\"ux-textual-display\"\u003e\u003cspan class=\"ux-textspans\"\u003eItem specifics\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable style=\"width: 100.088%; height: 251.125px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7188%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003ePart Number:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e707-99-67871\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7188%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eFits Models:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003ePC400-8, PC450-8, PC400LC-8, PC450LC-8\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7188%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eBrand:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eKOMATSU \u003cmeta charset=\"utf-8\"\u003ereplacement\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 33.7188%; height: 39.1875px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eType:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%; height: 39.1875px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eTorque Converter Service Kit\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 133.562px;\"\u003e\n\u003ctd style=\"width: 33.7188%; height: 133.562px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan data-path-to-node=\"3,9,1,0\"\u003eApplication:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%; height: 133.562px;\"\u003e\n\u003cp data-path-to-node=\"4\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eExpertly engineered to restore hydraulic pressure and eliminate cylinder drifting under heavy-duty lifting conditions. This premium aftermarket seal kit provides a precise fit for rebuilding the main lift cylinders on the following Komatsu large hydraulic excavators:\u003cbr\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb data-path-to-node=\"7,1,0,0\" data-index-in-node=\"0\"\u003ePC400 Series:\u003c\/b\u003e PC400-8, PC400LC-8, PC400-8R, PC400LC-8R\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb data-path-to-node=\"7,1,1,0\" data-index-in-node=\"0\"\u003ePC450 Series:\u003c\/b\u003e PC450-8, PC450LC-8, PC450-8R, PC450LC-8R\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7188%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eSize:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eStandard Size\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFAQ\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQ1: \u003cmeta charset=\"utf-8\"\u003eDoes this 707-99-67871 seal kit fit my exact excavator model?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eThis kit perfectly fits the boom (main lift) cylinders of Komatsu 40-45 ton Dash-8 models, including PC400-8, PC400LC-8, PC450-8, and their \"R\" regional variations. It matches a 110mm rod and 160mm bore. If you are unsure, contact our team—we can verify your exact match using our database of over 30,000 part numbers.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQ2: \u003cmeta charset=\"utf-8\"\u003eWhat is included in this hydraulic repair kit?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eIt is a comprehensive rebuild kit containing all necessary internal components to reseal one boom cylinder, including high-grade rod seals, piston seals, wear bands, and outer dust wipers designed to withstand heavy-duty pressure and prevent oil drifting.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQ3: Can I get customized packaging or parts for older machine models?\u003cbr\u003eA: \u003c\/strong\u003eYes, absolutely! We support your business flexibility by offering neutral packaging or customized packaging tailored to your brand requirements. Additionally, if you are operating older or rare equipment, we provide custom seal sourcing and manufacturing services to keep your legacy fleet running.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RuiJueParts","offers":[{"title":"Default Title","offer_id":51762780143847,"sku":"707-99-67871","price":27.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5251\/9399\/files\/7079967871_seal.jpg?v=1780310331","url":"https:\/\/www.ruijueparts.com\/products\/707-99-67871-komatsu","provider":"RuiJueParts","version":"1.0","type":"link"}