{"product_id":"namura-020-over-bore-piston-kit-for-polaris-1990-1993-350-2-stroke-atv-s-80-5mm","title":"Namura .020 Over Bore Piston Kit for Polaris 1990-1993 350 2-Stroke ATV's 80.5mm","description":"\u003ch2\u003eNamura .020 Over Bore Piston Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis Namura .020 over bore piston kit is a direct replacement for Polaris 350 2-stroke ATVs from 1990 to 1993, featuring an 80.5mm bore size to restore compression and power after a cylinder rebore.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .020 over bore piston kit is designed for Polaris 350 2-stroke ATVs, providing reliable performance and a precise fit. This 80.5mm piston kit includes the piston, rings, and wrist pin, making it an essential component for engine rebuilds on 1990-1993 Polaris 350 models.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMade from high-strength aluminum alloy for durability and heat resistance\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to .020 over size for a proper cylinder clearance\u003c\/li\u003e\n\u003cli\u003eIncludes premium piston rings for optimal compression and oil control\u003c\/li\u003e\n\u003cli\u003eWrist pin and circlips included for complete assembly\u003c\/li\u003e\n\u003cli\u003eDesigned to meet or exceed OEM specifications for reliable operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Polaris 350 2-Stroke ATVs (1990-1993)\u003c\/li\u003e\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\u003e80.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverbore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.020 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e350cc\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 kit include a gasket? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is a piston kit only and does not include gaskets; you will need to purchase a separate gasket set for a complete rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can this piston be used with a standard bore cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, this .020 over piston requires the cylinder to be bored to the corresponding oversize; a standard bore cylinder will not provide the proper clearance.\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":44949739274326,"sku":"SZ1F13690","price":175.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_a4576840-f939-4e91-9476-4291c593ea49.jpg?v=1781397537","url":"https:\/\/www.solidspare.com\/products\/namura-020-over-bore-piston-kit-for-polaris-1990-1993-350-2-stroke-atv-s-80-5mm","provider":"Solid Spare","version":"1.0","type":"link"}