{"product_id":"420256606-valve-seat-sleeve-for-sea-doo-challenger-se-310-1503-2008-2011","title":"420256606 Valve Seat Sleeve for Sea-Doo Challenger SE 310 1503 2008-2011","description":"\u003ch2\u003eValve Seat Sleeve for Sea-Doo\u003c\/h2\u003e\u003cp\u003eThis Valve Seat Sleeve is a replacement engine component designed to fit into the cylinder head of select Sea-Doo Challenger models, restoring proper valve seating and compression. It cross-references OEM part number 420256606 for a direct fit. This valve seat sleeve is suited to owners and mechanics servicing the 1503 engine platform.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis valve seat sleeve serves as the machined insert pressed into the cylinder head to support the valve and maintain a proper seal during combustion. It is built to match the original 420256606 specification, making it a practical choice for head reconditioning or engine rebuilds on compatible 1503 machines. Anyone servicing a Sea-Doo valve seat sleeve will find this part suitable for restoring valve function and compression.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCross-references OEM part number 420256606 for confident replacement\u003c\/li\u003e\n\u003cli\u003eMachined to seat valves correctly within the cylinder head\u003c\/li\u003e\n\u003cli\u003eConstructed from durable metal alloy to withstand combustion temperatures\u003c\/li\u003e\n\u003cli\u003eSupports proper compression and valve sealing\u003c\/li\u003e\n\u003cli\u003eSuited to 1503 engine rebuild and head service work\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Sea-Doo Challenger SE 310 1503, 2008-2011\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCylinder head reconditioning on 1503 engines\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds and top-end service\u003c\/li\u003e\n\u003cli\u003eValve seat replacement during head machining\u003c\/li\u003e\n\u003cli\u003eRestoring compression on high-hour PWC engines\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 Platform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1503\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCylinder Head\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 Does this valve seat sleeve require machining to fit? \u003cstrong\u003eA:\u003c\/strong\u003e Valve seat sleeves are typically pressed and machined to match the cylinder head, so professional installation and seat cutting are recommended for correct valve sealing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How many valve seat sleeves should I order? \u003cstrong\u003eA:\u003c\/strong\u003e Order the quantity that matches the number of seats you are replacing in your cylinder head, as each sleeve covers a single valve seat position.\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":51063128293462,"sku":"OO1C06849","price":36.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_61f7b643-9675-4443-b4d6-32999d42294f.jpg?v=1794393878","url":"https:\/\/www.solidspare.com\/products\/420256606-valve-seat-sleeve-for-sea-doo-challenger-se-310-1503-2008-2011","provider":"Solid Spare","version":"1.0","type":"link"}