{"product_id":"namura-040-over-bore-piston-rings-fits-polaris-hawkeye-sportsman-300-78-7mm","title":"Namura .040 Over Bore Piston Rings fits Polaris Hawkeye \u0026 Sportsman 300 78.7mm","description":"\u003ch2\u003e.040 Over Bore Piston Rings for Polaris\u003c\/h2\u003e\u003cp\u003eThese Namura .040 over bore piston rings for Polaris are designed for re-bored cylinders to maintain tight tolerances and optimal engine compression.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThese Namura .040 over bore piston rings for Polaris restore performance in engines that have undergone machine work. Choosing the right Namura .040 over bore piston rings for Polaris is critical for preventing power loss due to cylinder wear. This set is built to meet the rigorous demands of agricultural and trail riding engines.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eResistant to high combustion temperatures\u003c\/li\u003e\n\u003cli\u003eOptimized for over-bored cylinder walls\u003c\/li\u003e\n\u003cli\u003eConsistent tension across the ring face\u003c\/li\u003e\n\u003cli\u003eDesigned for 78.7mm bore sizing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris Hawkeye 300\u003c\/li\u003e\n\u003cli\u003efor Polaris Sportsman 300\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCompleting a cylinder re-bore project\u003c\/li\u003e\n\u003cli\u003eRestoring engine power after a seize\u003c\/li\u003e\n\u003cli\u003eRoutine engine maintenance for utility work\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\u003e78.7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOver Bore Amount\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040\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 does the .040 measurement indicate? \u003cstrong\u003eA:\u003c\/strong\u003e It refers to the amount the cylinder has been enlarged beyond the factory standard diameter. \u003cstrong\u003eQ:\u003c\/strong\u003e Can these be used in a stock cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, these rings will be too large and will cause engine failure in a stock bore.\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":44792386715734,"sku":"SZ1F03915","price":41.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_6890141d-0ac3-40c6-b4b3-815a61c1a190.jpg?v=1780068858","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-rings-fits-polaris-hawkeye-sportsman-300-78-7mm","provider":"Solid Spare","version":"1.0","type":"link"}