{"product_id":"namura-060-over-bore-piston-gasket-kit-for-polaris-sportsman-550-98-1mm","title":"Namura .060 Over Bore Piston \u0026 Gasket Kit for Polaris Sportsman 550 98.1mm","description":"\u003ch2\u003eNamura .060 Over Bore Piston \u0026amp; Gasket Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis .060 over bore piston and gasket kit for Polaris Sportsman 550 with 98.1mm bore replaces worn components to restore engine power and compression.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura piston and gasket kit is a direct-fit replacement for Polaris Sportsman 550 ATVs requiring a .060 over size. It includes everything needed to refresh the top end, featuring a precision-machined piston and full gasket set. Ideal for riders seeking reliable performance after cylinder wear or rebuild.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh-strength aluminum alloy piston for durability\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for optimal seal\u003c\/li\u003e\n\u003cli\u003eIncludes complete gasket kit for hassle-free installation\u003c\/li\u003e\n\u003cli\u003e.060 over bore increases displacement and power\u003c\/li\u003e\n\u003cli\u003eDesigned for exact fit in 98.1mm bore cylinders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Polaris Sportsman 550 (98.1mm bore)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding Polaris Sportsman ATV engines\u003c\/li\u003e\n\u003cli\u003eRestoring lost compression from cylinder wear\u003c\/li\u003e\n\u003cli\u003eIncreasing power output during top-end overhauls\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\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.060 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, rings, gasket set\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 What is important for proper fit? \u003cstrong\u003eA:\u003c\/strong\u003e Ensure the cylinder is bored to 98.1mm for this .060 over size. Confirm compatibility with the Sportsman 550 model year.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include wrist pin and circlips? \u003cstrong\u003eA:\u003c\/strong\u003e The kit includes the piston, rings, and gaskets; wrist pin and circlips may need to be purchased separately.\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":44949829484630,"sku":"SZ1F15361","price":285.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_de601492-1b61-4758-a244-658a2cd83525.jpg?v=1781399673","url":"https:\/\/www.solidspare.com\/products\/namura-060-over-bore-piston-gasket-kit-for-polaris-sportsman-550-98-1mm","provider":"Solid Spare","version":"1.0","type":"link"}