{"product_id":"rh41871390-boom-cylinder-seal-kit","title":"RH418-71390 Boom Cylinder Seal Kit For Kubota U27-4 | Ruijueparts","description":"\u003ch2 class=\"sec-head\"\u003eProduct Description\u003c\/h2\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eRH418-71390 is an aftermarket boom cylinder seal kit referenced for Kubota U27-4 compact excavators and U27-4CA applications. Kubota dealer catalog data places this reference in the boom cylinder assembly, while seal-kit catalogues list a 40 mm rod and 70 mm bore reference. This is the main boom lift cylinder kit, not the boom offset\/swing, arm, bucket or blade cylinder kit. For B2B buyers, keeping the original RH418-71390 number tied to the boom-cylinder position helps prevent confusion when purchasing several U27-4 repair kits at once. Ruijueparts supports direct part-number matching, multi-SKU RFQs, selected legacy-equipment sourcing, and neutral or customer-specified packaging.\u003c\/span\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: 293.907px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.8353%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003ePart Number:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.899%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eRH418-71390\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 33.8353%; height: 39.1875px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eFits Models:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.899%; height: 39.1875px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eU27-4, U27-4CA \u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.8353%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eBrand:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.899%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eKubota \u003cmeta charset=\"utf-8\"\u003ereplacement\u003c\/span\u003e\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.8353%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eType:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.899%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eHydraulic Cylinder Seal Kit \/ Boom Cylinder Seal Kit\u003c\/span\u003e\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 176.344px;\"\u003e\n\u003ctd style=\"width: 33.8353%; height: 176.344px;\"\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: 65.899%; height: 176.344px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003eUsed to reseal the designated main boom\/lift cylinder on Kubota U27-4 and U27-4CA compact excavators. The cylinder raises and lowers the primary boom during digging, lifting, loading and machine positioning.\u003c\/li\u003e\n\u003cli\u003eCompact Excavator: U27-4, U27-4CA\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: 33.8353%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eSize:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.899%; 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\u003cp\u003eWhat cylinder does RH418-71390 repair?\u003cbr\u003eRH418-71390 is for the designated main boom\/lift cylinder. It rebuilds the cylinder responsible for raising and lowering the primary boom.\u003c\/p\u003e\n\u003cp\u003eIs RH418-71390 the same as RH418-71290?\u003cbr\u003eNo. RH418-71290 is used for the boom offset\/swing function, while RH418-71390 is for the main boom lift cylinder. They should be ordered as separate repair-kit references.\u003c\/p\u003e\n\u003cp\u003eWhat Kubota models are associated with RH418-71390?\u003cbr\u003eThe primary verified application is the Kubota U27-4. U27-4CA is also listed by aftermarket application references; use the original part number as the main ordering basis.\u003c\/p\u003e\n\u003cp\u003eWhat is the reference cylinder size?\u003cbr\u003eCatalogues list a 40 mm rod × 70 mm bore. This supports application checking but does not replace matching by the original RH418-71390 part number.\u003c\/p\u003e","brand":"RuiJueParts","offers":[{"title":"Default Title","offer_id":52771549839591,"sku":"RH418-71390","price":11.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5251\/9399\/files\/RH418-71390.png?v=1791272478","url":"https:\/\/www.ruijueparts.com\/products\/rh41871390-boom-cylinder-seal-kit","provider":"RuiJueParts","version":"1.0","type":"link"}