{"product_id":"420950772-head-gasket-for-sea-doo-ltd-18-300-1630-2026","title":"420950772 Head Gasket for Sea-Doo LTD 18-300 1630 2026","description":"\u003ch2\u003eHead Gasket for Sea-Doo\u003c\/h2\u003e\u003cp\u003eThis head gasket, part number 420950772, seals the cylinder head to the engine block on the Sea-Doo LTD 18-300 1630 for the 2026 model year, keeping combustion pressure contained and coolant in its proper passages.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis head gasket for Sea-Doo is a direct-fit sealing component built for the LTD 18-300 1630 platform. It goes between the cylinder head and block to maintain compression and prevent coolant or oil from migrating where they do not belong. Engine builders and riders servicing a 2026 machine will find this head gasket suited to top-end rebuild work.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-cut to match the 1630 engine deck and combustion chamber openings\u003c\/li\u003e\n\u003cli\u003eConstructed to withstand the heat and pressure of a running marine engine\u003c\/li\u003e\n\u003cli\u003eSeals coolant passages to help prevent overheating and fluid loss\u003c\/li\u003e\n\u003cli\u003eMaintains cylinder compression for consistent power delivery\u003c\/li\u003e\n\u003cli\u003eDirect replacement for part number 420950772\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Sea-Doo LTD 18-300 1630, 2026\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds and cylinder head service\u003c\/li\u003e\n\u003cli\u003eCoolant leak repair at the head-to-block joint\u003c\/li\u003e\n\u003cli\u003eCompression loss diagnosis and correction\u003c\/li\u003e\n\u003cli\u003eRoutine engine refresh on high-hour machines\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\u003eComponent\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 Platform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1630\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 Should head bolts be replaced when installing this gasket? \u003cstrong\u003eA:\u003c\/strong\u003e Many manufacturers specify new torque-to-yield head bolts for a proper seal. Check the service manual for your 1630 engine before reassembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this gasket reusable if the engine has not been run? \u003cstrong\u003eA:\u003c\/strong\u003e A head gasket is designed for a single installation and should be replaced any time the head is removed. Reusing one risks an inadequate seal.\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":51114557243478,"sku":"OO1C20649","price":180.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_8bbc9b94-0bf7-4d5f-a558-594265898a6e.jpg?v=1794481498","url":"https:\/\/www.solidspare.com\/products\/420950772-head-gasket-for-sea-doo-ltd-18-300-1630-2026","provider":"Solid Spare","version":"1.0","type":"link"}