{"product_id":"namura-040-over-bore-piston-kit-fits-polaris-850-scrambler-sportsman-88mm","title":"Namura .040 Over Bore Piston Kit fits Polaris 850 Scrambler \u0026 Sportsman 88mm","description":"\u003ch2\u003eNamura .040 Over Bore Piston Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis .040 over bore piston kit by Namura is designed to fit Polaris 850 Scrambler and Sportsman models with an 88mm bore, providing a direct replacement performance piston for engine rebuilding.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura .040 over bore piston kit for Polaris 850 Scrambler and Sportsman is a high-quality aftermarket replacement for engines requiring a .040 oversize piston. It includes the piston, rings, and wrist pin, designed to restore compression and power. Compatible with 88mm bore Polaris engines, this kit is ideal for rebuilding or upgrading your ATV's engine.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-grade aluminum alloy\u003c\/li\u003e\n\u003cli\u003eIncludes premium piston rings for optimal sealing\u003c\/li\u003e\n\u003cli\u003eDesigned for .040 oversize bore to clean up worn cylinders\u003c\/li\u003e\n\u003cli\u003eMatched wrist pin for secure connection\u003c\/li\u003e\n\u003cli\u003eProven performance in Polaris 850 engines\u003c\/li\u003e\n\u003cli\u003eManufactured by Namura, a trusted aftermarket brand\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris 850 Scrambler\u003c\/li\u003e\n\u003cli\u003efor Polaris 850 Sportsman\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding the top end of Polaris 850 engines\u003c\/li\u003e\n\u003cli\u003eRestoring lost compression and performance\u003c\/li\u003e\n\u003cli\u003eInstalling during cylinder boring to .040 oversize\u003c\/li\u003e\n\u003cli\u003eUsed in recreational and utility Polaris ATVs\u003c\/li\u003e\n\u003cli\u003eCommonly performed by experienced mechanics and DIY builders\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\u003e88mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 (0.040 in \/ 1.0mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris 850 Scrambler, Sportsman\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 is the bore size for this piston kit? \u003cstrong\u003eA:\u003c\/strong\u003e This kit is for an 88mm bore, which is the standard bore for Polaris 850 engines with a .040 oversize.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit come with piston rings? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the Namura piston kit includes the piston, rings, and wrist pin for a complete replacement.\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":44890933559382,"sku":"SZ1F13617","price":175.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_a0c46514-d7fe-4699-9c2e-9b510142e120.jpg?v=1781144358","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-kit-fits-polaris-850-scrambler-sportsman-88mm","provider":"Solid Spare","version":"1.0","type":"link"}