{"product_id":"cylinder-piston-gasket-top-end-kit-for-hisun-utv-atv-msu400-ys400-84-34mm-bore","title":"Cylinder Piston Gasket Top End Kit For HiSUN UTV ATV MSU400 YS400 84.34mm Bore","description":"\u003ch2\u003eTop End Kit for HiSUN UTV ATV MSU400 YS400\u003c\/h2\u003e\u003cp\u003eThis cylinder piston gasket top end kit restores compression and sealing on 84.34mm bore engines found in HiSUN and Massimo 400 UTV and ATV models.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis top end kit delivers the cylinder, piston, and gasket components needed to refresh worn 400-class engines. It serves riders and mechanics rebuilding HiSUN or Massimo UTV and ATV powerplants that have lost compression or are burning oil. Each kit is sized to the 84.34mm bore so the top end goes back together with correct clearances.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e84.34mm bore sizing matched to the 400cc engine platform\u003c\/li\u003e\n\u003cli\u003eCylinder, piston, and gasket set combined in one top end package\u003c\/li\u003e\n\u003cli\u003ePiston machined for proper ring land fit and compression sealing\u003c\/li\u003e\n\u003cli\u003eGaskets cut to seal the cylinder base and head joints\u003c\/li\u003e\n\u003cli\u003eComponents sized for the HiSUN and Massimo 400 engine family\u003c\/li\u003e\n\u003cli\u003eServiceable replacement parts for rebuilt or refreshed top ends\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor HiSUN UTV 400 models\u003c\/li\u003e\n\u003cli\u003efor HiSUN ATV 400 models\u003c\/li\u003e\n\u003cli\u003efor Massimo 400 models\u003c\/li\u003e\n\u003cli\u003efor MSU400 machines\u003c\/li\u003e\n\u003cli\u003efor YS400 machines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop end rebuilds after low compression or oil consumption\u003c\/li\u003e\n\u003cli\u003eRoutine engine refresh on high-hour UTV and ATV units\u003c\/li\u003e\n\u003cli\u003eWorkshop repairs on HiSUN and Massimo 400 engines\u003c\/li\u003e\n\u003cli\u003eRestoring power for trail, farm, and utility riding\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e84.34mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCylinder, piston, and gasket top end kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Platform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e400cc class\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What does a top end kit include? \u003cstrong\u003eA:\u003c\/strong\u003e It groups the cylinder, piston, and gaskets needed to reseal and refresh the upper half of the engine. Confirm bore size against your original cylinder before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I know this kit fits my machine? \u003cstrong\u003eA:\u003c\/strong\u003e Match the 84.34mm bore and the MSU400 or YS400 model listing to your unit. Serial number and production run can affect fit, so verify before purchase.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":50553867698262,"sku":"ZZ3M01070","price":222.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_2dd9d0bb-8862-474d-885b-e70de0b933ea.jpg?v=1790793822","url":"https:\/\/www.solidspare.com\/products\/cylinder-piston-gasket-top-end-kit-for-hisun-utv-atv-msu400-ys400-84-34mm-bore","provider":"Solid Spare","version":"1.0","type":"link"}