{"product_id":"420256606-valve-seat-sleeve-for-sea-doo-sport-21-300-1630-2026","title":"420256606 Valve Seat Sleeve for Sea-Doo Sport 21-300 1630 2026","description":"\u003ch2\u003eValve Seat Sleeve for Sea-Doo\u003c\/h2\u003e\u003cp\u003eThis Valve Seat Sleeve, part number 420256606, is a replacement component that presses into the cylinder head to support and locate the valve seat, helping maintain proper valve sealing on 1630cc engines.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Valve Seat Sleeve for Sea-Doo is a precision-fit component made for 1630cc engine cylinder heads. This valve seat sleeve holds the valve seat in correct alignment so valves seal properly under combustion pressure. It is intended for riders and mechanics servicing Sea-Doo Sport 21-300 models.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMachined to seat the valve concentrically in the cylinder head\u003c\/li\u003e\n\u003cli\u003eHeat-resistant material suited to combustion temperatures\u003c\/li\u003e\n\u003cli\u003eSupports the valve seat area through repeated combustion cycles\u003c\/li\u003e\n\u003cli\u003eHelps restore valve sealing during a top-end rebuild\u003c\/li\u003e\n\u003cli\u003eDirect replacement for the original sleeve part number 420256606\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Sea-Doo Sport 21-300 1630, 2026\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCylinder head service and top-end rebuilds\u003c\/li\u003e\n\u003cli\u003eValve seat replacement and repair work\u003c\/li\u003e\n\u003cli\u003eRestoring compression on high-hour marine engines\u003c\/li\u003e\n\u003cli\u003eShop and DIY engine repair\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e420256606\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eValve Seat Sleeve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Displacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1630cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCylinder head valve seat support\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 Is this an original Sea-Doo part? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is an aftermarket valve seat sleeve that cross-references part number 420256606. It is designed to fit the listed Sea-Doo 1630cc models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How many sleeves do I need? \u003cstrong\u003eA:\u003c\/strong\u003e This listing is for a single valve seat sleeve, so order the quantity matching the seats you are replacing. Check your engine's valve count before ordering.\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":51063106830422,"sku":"OO1C06681","price":36.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_b8cc1226-97dd-484c-acbe-23b86101b680.jpg?v=1794393795","url":"https:\/\/www.solidspare.com\/products\/420256606-valve-seat-sleeve-for-sea-doo-sport-21-300-1630-2026","provider":"Solid Spare","version":"1.0","type":"link"}