{"product_id":"420854449-power-valve-piston-for-sea-doo-speedster-800-1998-1999","title":"420854449 Power Valve Piston for Sea-Doo Speedster 800 1998-1999","description":"\u003ch2\u003ePower Valve Piston for Sea-Doo\u003c\/h2\u003e\u003cp\u003eThis power valve piston for Sea-Doo replaces OEM 420854449 and keeps the RAVE exhaust valve cycling correctly on Speedster 800 models.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe power valve piston is a small but critical part of the RAVE exhaust valve system on Sea-Doo 800 engines. It moves the valve guillotine to tune exhaust port timing for stronger low-end and top-end performance. This replacement power valve piston fits 1998 to 1999 Sea-Doo Speedster 800 applications.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement for OEM part number 420854449\u003c\/li\u003e\n\u003cli\u003eManufactured to factory dimensions for correct valve travel\u003c\/li\u003e\n\u003cli\u003eWorks with the RAVE exhaust valve assembly on 800 series engines\u003c\/li\u003e\n\u003cli\u003eDurable construction to handle constant exhaust heat cycling\u003c\/li\u003e\n\u003cli\u003eSold individually for targeted replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Sea-Doo Speedster 800, 1998\u003c\/li\u003e\n\u003cli\u003efor Sea-Doo Speedster 800, 1999\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding a RAVE valve that has seized or worn out\u003c\/li\u003e\n\u003cli\u003eRestoring proper exhaust valve movement after a top-end service\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance on 800 series Rotax marine engines\u003c\/li\u003e\n\u003cli\u003eRepairing sluggish acceleration caused by a stuck power valve\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\u003e420854449\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower Valve Piston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRAVE Exhaust Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRotax 800\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 How many pistons come in one order? \u003cstrong\u003eA:\u003c\/strong\u003e This listing is for a single power valve piston, so order the quantity you need for your rebuild. Many riders replace both sides at once for even wear.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need any other parts when replacing this piston? \u003cstrong\u003eA:\u003c\/strong\u003e It is wise to inspect the valve guillotine, housing, and bellows while the engine is apart. Replacing worn seals or gaskets at the same time helps avoid a repeat teardown.\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":51060201783382,"sku":"OO1C02119","price":37.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_bd96e2c1-5655-4b5e-a1e3-26e3745c54fe.jpg?v=1794306995","url":"https:\/\/www.solidspare.com\/products\/420854449-power-valve-piston-for-sea-doo-speedster-800-1998-1999","provider":"Solid Spare","version":"1.0","type":"link"}