{"product_id":"namura-060-over-bore-piston-kit-for-polaris-sportsman-550-fits-2009-2014-98-1mm","title":"Namura .060 Over Bore Piston Kit for Polaris Sportsman 550 fits 2009-2014 98.1mm","description":"\u003ch2\u003eNamura .060 Over Bore Piston Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis .060 over bore piston kit from Namura replaces worn factory pistons in Polaris Sportsman 550 engines from 2009 to 2014, featuring a 98.1mm bore diameter for oversize rebuilds.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .060 over bore piston kit is a direct-fit replacement for Polaris Sportsman 550 ATVs from 2009 to 2014. This .060 over bore kit features a 98.1mm bore size and includes rings, wrist pin, and clips for a complete top-end rebuild. It restores lost compression and power in high-mileage engines, making it an ideal choice for riders performing an overbore service.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-silicon aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003eIncludes moly-coated rings for reduced friction and improved sealing\u003c\/li\u003e\n\u003cli\u003e98.1mm bore diameter provides a .060 over size for cylinder oversize repair\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and circlips for complete installation\u003c\/li\u003e\n\u003cli\u003eDesigned to match Polaris Sportsman 550 OEM specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Polaris Sportsman 550 (2009-2014)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding top-end of Polaris Sportsman 550 engines after wear\u003c\/li\u003e\n\u003cli\u003eRestoring compression and power in high-mileage ATVs\u003c\/li\u003e\n\u003cli\u003ePerforming an overbore service to renew cylinder walls\u003c\/li\u003e\n\u003cli\u003eReplacing damaged or worn pistons during engine overhaul\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e98.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOver Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.060 in (1.524mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, rings, wrist pin, circlips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris Sportsman 550 (2009-2014)\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 piston kit include a gasket set? \u003cstrong\u003eA:\u003c\/strong\u003e This kit includes the piston, rings, wrist pin, and circlips only. A separate gasket set is recommended for a complete rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can this kit be used with a standard bore cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is a .060 over bore piston, so the cylinder must be bored to 98.1mm by a machine shop before 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":44949744615510,"sku":"SZ1F13857","price":186.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_6ba1328a-2a66-4676-85d7-7db916453367.jpg?v=1781397744","url":"https:\/\/www.solidspare.com\/products\/namura-060-over-bore-piston-kit-for-polaris-sportsman-550-fits-2009-2014-98-1mm","provider":"Solid Spare","version":"1.0","type":"link"}