{"product_id":"namura-040-over-bore-piston-kit-for-polaris-sportsman-400-450-ranger-425-88-9mm","title":"Namura .040 Over Bore Piston Kit for Polaris Sportsman 400 450 Ranger 425 88.9mm","description":"\u003ch2\u003e.040 Over Bore Piston Kit for Polaris Sportsman 400 450 Ranger 425\u003c\/h2\u003e\u003cp\u003eThis .040 over bore piston kit for Polaris Sportsman 400, 450, and Ranger 425 provides an oversized piston (88.9mm) for engines bored to the first oversize.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis .040 over bore piston kit for Polaris Sportsman 400, 450, and Ranger 425 includes a piston, rings, and wrist pin for a complete engine rebuild. The 88.9mm piston is designed for cylinders that have been bored .040 inches over standard. Use this piston kit to restore compression and performance in your Polaris ATV or utility vehicle.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eConstructed from high-silicone aluminum alloy for lightweight strength\u003c\/li\u003e\n\u003cli\u003eOversized .040 (1mm) over standard bore to match oversize cylinders\u003c\/li\u003e\n\u003cli\u003eIncludes durable chrome-plated piston rings for long wear\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for tight tolerances and consistent fit\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and circlips for a complete installation\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\u003eRebuilding engines after bore and hone operations\u003c\/li\u003e\n\u003cli\u003eRestoring power in high-hour ATVs and utility vehicles\u003c\/li\u003e\n\u003cli\u003eCustom performance builds and top-end overhauls\u003c\/li\u003e\n\u003cli\u003eTrail riding and heavy-duty farm work\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\u003e88.9 mm (.040 Oversize)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris Sportsman 400, 450, Ranger 425\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, Circlips\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 Can this piston kit be used on a standard bore cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, this .040 over bore kit is designed for cylinders that have been bored oversize; using it on a standard bore will not fit correctly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are the rings pre-gapped? \u003cstrong\u003eA:\u003c\/strong\u003e Rings are not pre-gapped and should be fit to your specific cylinder clearance for optimal performance.\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":44890824573014,"sku":"SZ1F13429","price":170.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_997b9267-290e-4965-bda7-e303d4c1aafb.jpg?v=1781144109","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-kit-for-polaris-sportsman-400-450-ranger-425-88-9mm","provider":"Solid Spare","version":"1.0","type":"link"}