{"product_id":"namura-020-over-piston-kit-for-polaris-325-magnum-trail-boss-xpedition-78-5mm","title":"Namura .020 Over Piston Kit for Polaris 325 Magnum Trail Boss Xpedition 78.5mm","description":"\u003ch2\u003e.020 Over Piston Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis .020 over piston kit with 78.5mm bore diameter replaces the original piston in Polaris ATV engines, restoring compression and power for models like the 325 Magnum, Trail Boss, and Xpedition.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .020 Over Piston Kit for Polaris 325 Magnum, Trail Boss, and Xpedition provides an oversize piston for engines needing an extra 0.020-inch bore. This piston kit includes rings, wrist pin, and clips for a complete top-end rebuild, delivering consistent performance and reliability.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHypereutectic aluminum alloy casting for strength and heat dissipation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for optimal seal\u003c\/li\u003e\n\u003cli\u003eMoly-coated rings reduce friction and wear\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and circlips for hassle-free installation\u003c\/li\u003e\n\u003cli\u003eBalanced and weight-matched to OEM specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris Magnum 325\u003c\/li\u003e\n\u003cli\u003efor Polaris Trail Boss\u003c\/li\u003e\n\u003cli\u003efor Polaris Xpedition\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrail riding and utility work\u003c\/li\u003e\n\u003cli\u003eEngine overhauls and top-end rebuilds\u003c\/li\u003e\n\u003cli\u003eGeneral ATV maintenance and performance restoration\u003c\/li\u003e\n\u003cli\u003eAggressive off-road riding requiring reliable piston performance\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\u003e78.5mm\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 (0.020 inch)\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 piston kit include the piston rings? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit includes high-quality moly-coated rings pre-gapped for the specified oversize.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this piston kit compatible with the original cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e It requires the cylinder to be bored to 78.5mm by a qualified machinist to ensure 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":44890768080982,"sku":"SZ1F13040","price":160.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_4ee25ebe-0c07-4334-8d05-3a8d4d2063c4.jpg?v=1781143556","url":"https:\/\/www.solidspare.com\/products\/namura-020-over-piston-kit-for-polaris-325-magnum-trail-boss-xpedition-78-5mm","provider":"Solid Spare","version":"1.0","type":"link"}