{"product_id":"420950772-head-gasket-for-sea-doo-challenger-sp-310-1503-2010-2011","title":"420950772 Head Gasket for Sea-Doo Challenger SP 310 1503 2010-2011","description":"\u003ch2\u003eHead Gasket for Sea-Doo Challenger SP 310\u003c\/h2\u003e\u003cp\u003eThis head gasket for Sea-Doo Challenger SP 310 with the 1503 engine (2010-2011) is a direct cross-reference for OEM 420950772, sealing the cylinder head to the block to contain combustion pressure and coolant.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis head gasket for Sea-Doo Challenger SP 310 is a replacement sealing component for the 1503 engine used in 2010-2011 models. It seals the mating surface between the cylinder head and engine block, helping maintain compression and keep coolant and oil where they belong. It is intended for marine mechanics and owners rebuilding a top end on a Sea-Doo Challenger SP 310, and it cross-references 420950772 for straightforward sourcing.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCross-references OEM part 420950772 for direct replacement fitment\u003c\/li\u003e\n\u003cli\u003eSeals the cylinder head to block mating surface on the 1503 engine\u003c\/li\u003e\n\u003cli\u003eWithstands the high compression and thermal cycling of marine use\u003c\/li\u003e\n\u003cli\u003eComposite construction resists coolant and oil exposure\u003c\/li\u003e\n\u003cli\u003eDesigned to match the sealing geometry of the 1503 head\u003c\/li\u003e\n\u003cli\u003eSold as a single gasket for top-end service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Sea-Doo Challenger SP 310, 2010-2011, 1503 engine\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds and cylinder head removal on the 1503 engine\u003c\/li\u003e\n\u003cli\u003eReplacing a failed or leaking head gasket after overheating\u003c\/li\u003e\n\u003cli\u003eCompression restoration on 2010-2011 Challenger SP 310 boats\u003c\/li\u003e\n\u003cli\u003eScheduled or preventive engine service\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\u003e420950772\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHead Gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1503\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSea-Doo Challenger SP 310, 2010-2011\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 Can this head gasket be reused if I reopen the engine shortly after install? \u003cstrong\u003eA:\u003c\/strong\u003e Head gaskets are single-use sealing components and should be replaced any time the cylinder head is removed, even after a short run time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need to check head bolt torque and flatness before installing? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, clean and inspect the head and block surfaces for flatness and follow the manufacturer torque sequence and values for the 1503 engine.\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":51114730913878,"sku":"OO1C20731","price":180.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_0300d8f4-b784-464e-9cf2-de1f0f08bf07.jpg?v=1794481505","url":"https:\/\/www.solidspare.com\/products\/420950772-head-gasket-for-sea-doo-challenger-sp-310-1503-2010-2011","provider":"Solid Spare","version":"1.0","type":"link"}