{"product_id":"2-namura-020-over-bore-piston-kits-fits-polaris-sportsman-850-scrambler-87-5mm","title":"2 Namura .020 Over Bore Piston Kits fits Polaris Sportsman 850 Scrambler 87.5mm","description":"\u003ch2\u003e2 Namura .020 Over Bore Piston Kits for Polaris Sportsman 850 Scrambler 87.5mm\u003c\/h2\u003e\u003cp\u003eThese .020 over bore piston kits from Namura are designed for rebuilding Polaris Sportsman 850 and Scrambler engines, providing a precise 87.5mm bore size for increased displacement and performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThese piston kits from Namura offer a cost-effective way to refresh or increase displacement on Polaris Sportsman 850 and Scrambler models. Each kit includes two pistons, rings, pins, and clips for a complete top-end rebuild. With a .020 over bore and 87.5mm diameter, they restore compression and power while extending engine life.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eManufactured from high-silicon aluminum alloy for strength and heat dissipation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined skirt profile reduces friction and wear\u003c\/li\u003e\n\u003cli\u003eIncludes moly-coated rings for improved sealing and reduced break-in time\u003c\/li\u003e\n\u003cli\u003eEach piston is weight-matched for balanced engine operation\u003c\/li\u003e\n\u003cli\u003eDesigned to match OEM specifications for reliable fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris Sportsman 850\u003c\/li\u003e\n\u003cli\u003efor Polaris Scrambler 850\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrail riding and recreational off-roading\u003c\/li\u003e\n\u003cli\u003eUtility work and farm use\u003c\/li\u003e\n\u003cli\u003eCompetitive racing and sport riding\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds and performance upgrades\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\u003e87.5mm (.020 over stock)\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 piston kits\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\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris Sportsman 850 \/ Scrambler 850\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 Are these pistons compatible with the stock cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, they are designed as a direct .020 over bore replacement for the stock cylinder bore, but the cylinder must be honed or bored to the exact 87.5mm size by a qualified machinist.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I reuse the old wrist pins or clips? \u003cstrong\u003eA:\u003c\/strong\u003e It is recommended to use the included new wrist pins and clips for proper fit and to prevent premature wear or failure.\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":44949849243734,"sku":"SZ1F15919","price":340.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_743a33d0-f7f1-479d-aead-bacc11fd481a.jpg?v=1781400920","url":"https:\/\/www.solidspare.com\/products\/2-namura-020-over-bore-piston-kits-fits-polaris-sportsman-850-scrambler-87-5mm","provider":"Solid Spare","version":"1.0","type":"link"}