{"product_id":"namura-060-over-bore-piston-kit-for-polaris-300-xplorer-xpress-big-boss-76mm","title":"Namura .060 Over Bore Piston Kit for Polaris 300 Xplorer, Xpress, Big Boss 76mm","description":"\u003ch2\u003e.060 Over Bore Piston Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis piston kit is a direct replacement for Polaris 300 Xplorer, Xpress, and Big Boss ATVs, featuring a .060 over bore (76mm) to restore engine compression and power after wear or boring.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe .060 over bore piston kit for Polaris 300 series ATVs is engineered to rebuild engines that have been bored to 76mm, providing a precise fit and reliable performance. This kit includes the 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\u003eHigh-strength aluminum alloy construction for durability\u003c\/li\u003e\n\u003cli\u003ePrecision-machined piston skirt reduces friction\u003c\/li\u003e\n\u003cli\u003eMoly-coated rings for improved sealing and longevity\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and circlips for hassle-free installation\u003c\/li\u003e\n\u003cli\u003eDesigned for .060 over bore applications (76mm diameter)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris 300 Xplorer\u003c\/li\u003e\n\u003cli\u003efor Polaris Xpress\u003c\/li\u003e\n\u003cli\u003efor Polaris Big Boss\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eEngine rebuild after top-end wear or cylinder damage\u003c\/li\u003e\n\u003cli\u003eRestoring lost power in aging ATVs\u003c\/li\u003e\n\u003cli\u003eTrail riding and utility work requiring reliable engine 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\u003e.060 over (76mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris 300 Xplorer, Xpress, Big Boss\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 Do I need to replace the cylinder sleeve? \u003cstrong\u003eA:\u003c\/strong\u003e This piston kit is designed for a cylinder already bored to .060 over; if your cylinder needs boring, have it machined to 76mm before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include the piston rings? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit comes complete with piston rings and a wrist pin for a full top-end rebuild.\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":44890780008534,"sku":"SZ1F13090","price":164.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_dffedc30-d427-4e67-9059-80238e9d71b8.jpg?v=1781143629","url":"https:\/\/www.solidspare.com\/products\/namura-060-over-bore-piston-kit-for-polaris-300-xplorer-xpress-big-boss-76mm","provider":"Solid Spare","version":"1.0","type":"link"}