{"product_id":"420254882-intake-or-exhaust-valve-guide-for-sea-doo-sport-18-300-1630-2026","title":"420254882 Intake or Exhaust Valve Guide for Sea-Doo Sport 18-300 1630 2026","description":"\u003ch2\u003eIntake or Exhaust Valve Guide for Sea-Doo Sport 18-300 1630\u003c\/h2\u003e\u003cp\u003eThis intake or exhaust valve guide, part number 420254882, keeps valve stems aligned in the cylinder head so the valves seat true and the engine holds compression.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis valve guide is made for the Sea-Doo Sport 18-300 1630 and serves as a direct-fit replacement for worn or out-of-spec guides in the cylinder head. It controls valve stem movement, which protects valve seats and keeps combustion sealed. It suits riders and mechanics rebuilding a top end who need a dependable valve guide for the 1630 engine platform.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision bore sized for proper valve stem clearance\u003c\/li\u003e\n\u003cli\u003eManufactured to OEM cross-reference 420254882\u003c\/li\u003e\n\u003cli\u003eFits both intake and exhaust valve positions\u003c\/li\u003e\n\u003cli\u003eWithstands repeated heat cycling in the cylinder head\u003c\/li\u003e\n\u003cli\u003eRestores valve alignment for consistent compression\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Sea-Doo Sport 18-300 1630, 2026\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCylinder head rebuilds after valve seat wear\u003c\/li\u003e\n\u003cli\u003eTop end refreshes on the 1630 engine\u003c\/li\u003e\n\u003cli\u003eValve train service when guides show excessive play\u003c\/li\u003e\n\u003cli\u003eMachine shop head work and valve replacement jobs\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\u003e420254882\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntake or Exhaust Valve Guide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Sea-Doo Sport 18-300 1630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Year\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2026\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 guide fit both intake and exhaust valves? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this guide is designed for either position on the 1630 cylinder head. Confirm your engine code and year before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I install this without machining? \u003cstrong\u003eA:\u003c\/strong\u003e Guide installation typically requires pressing and reaming to spec, so machine shop service is recommended. Check valve stem clearance after installation.\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":51060211613782,"sku":"OO1C02279","price":57.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_fd1a0acd-7b4a-434c-8b4d-cddd1c445670.jpg?v=1794307049","url":"https:\/\/www.solidspare.com\/products\/420254882-intake-or-exhaust-valve-guide-for-sea-doo-sport-18-300-1630-2026","provider":"Solid Spare","version":"1.0","type":"link"}