{"product_id":"namura-040-over-bore-piston-kit-fits-polaris-hawkeye-300-sportsman-300-78-7mm","title":"Namura .040 Over Bore Piston Kit fits Polaris Hawkeye 300 \u0026 Sportsman 300 78.7mm","description":"\u003ch2\u003e.040 Over Bore Piston Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis .040 over bore piston kit from Namura is designed for Polaris Hawkeye 300 and Sportsman 300 ATVs, providing a precise 78.7mm diameter for engine rebuilds.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe .040 over bore piston kit from Namura is a high-performance replacement piston for Polaris Hawkeye 300 and Sportsman 300 ATVs. This kit includes the piston, rings, and pin, machined to 78.7mm for a precise fit. Ideal for restoring lost compression and power in your Polaris 300 engine.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-strength aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003eIncludes matched piston rings for optimal seal and compression\u003c\/li\u003e\n\u003cli\u003e78.7mm overbore size increases displacement for more power\u003c\/li\u003e\n\u003cli\u003eNamura's proprietary coating reduces friction and wear\u003c\/li\u003e\n\u003cli\u003eComplete kit with wrist pin and circlips for easy installation\u003c\/li\u003e\n\u003cli\u003eDesigned to meet or exceed OEM specifications\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\u003eTrail riding and recreational ATV use\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds and top-end overhauls\u003c\/li\u003e\n\u003cli\u003eRestoring performance in worn Polaris 300 engines\u003c\/li\u003e\n\u003cli\u003eOff-road utility and work applications\u003c\/li\u003e\n\u003cli\u003eRacing or high-performance riding\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\u003eOverbore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston Kit\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 piston pin? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit comes with a wrist pin and circlips for a complete installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this .040 over bore suitable for all Polaris 300 models? \u003cstrong\u003eA:\u003c\/strong\u003e This piston fits Polaris Hawkeye 300 and Sportsman 300 models, but always verify engine displacement and serial number for compatibility.\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":44949741994070,"sku":"SZ1F13777","price":182.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_562793fe-5893-4d35-a0fc-32267c941db9.jpg?v=1781397631","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-kit-fits-polaris-hawkeye-300-sportsman-300-78-7mm","provider":"Solid Spare","version":"1.0","type":"link"}