{"product_id":"namura-020-over-bore-piston-kit-for-polaris-sportsman-400-450-ranger-425-88-4mm","title":"Namura .020 Over Bore Piston Kit for Polaris Sportsman 400 450 Ranger 425 88.4mm","description":"\u003ch2\u003e.020 Over Bore Piston Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis .020 over bore piston kit for Polaris Sportsman 400, 450, and Ranger 425 models is a high-quality replacement component designed to restore engine compression and performance after cylinder boring.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis .020 over bore piston kit for Polaris ATV and UTV models provides a precise 88.4mm piston for engines requiring an oversize rebuild. It is ideal for riders restoring their Polaris Sportsman or Ranger to peak power. The kit includes piston, rings, and wrist pin for a complete top-end overhaul.\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 chrome-plated rings for reduced friction and long life\u003c\/li\u003e\n\u003cli\u003eDesigned to match OEM specifications for a direct fit\u003c\/li\u003e\n\u003cli\u003eOversized .020 allows for cylinder cleanup and increased displacement\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and clips for a complete install\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris Sportsman 400\u003c\/li\u003e\n\u003cli\u003efor Polaris Sportsman 450\u003c\/li\u003e\n\u003cli\u003efor Polaris Ranger 425\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrail riding and recreational off-road use\u003c\/li\u003e\n\u003cli\u003eWork applications like hauling and towing on farms\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds for worn-out top ends\u003c\/li\u003e\n\u003cli\u003eRestoration projects for older Polaris models\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\u003e88.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.020 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, Wrist Pin, Clips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNamura\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 Will this piston kit fit a standard bore engine? \u003cstrong\u003eA:\u003c\/strong\u003e No, this kit is .020 over bore and requires the cylinder to be bored to 88.4mm. A standard bore cylinder will not accept this piston.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is included in the kit? \u003cstrong\u003eA:\u003c\/strong\u003e The kit comes with the piston, rings, wrist pin, and circlips. You may need to reuse your original piston pin or purchase separately if not included.\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":44890824900694,"sku":"SZ1F13432","price":170.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_58929b8b-a1c7-4c9d-a77f-d085982e7ba8.jpg?v=1781144113","url":"https:\/\/www.solidspare.com\/products\/namura-020-over-bore-piston-kit-for-polaris-sportsman-400-450-ranger-425-88-4mm","provider":"Solid Spare","version":"1.0","type":"link"}