{"product_id":"namura-040-over-bore-piston-kit-for-polaris-most-1996-2013-500-atv-utv-93mm","title":"Namura .040 Over Bore Piston Kit for Polaris most 1996-2013 500 ATV\/UTV 93mm","description":"\u003ch2\u003eNamura .040 Over Bore Piston Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis Namura .040 over bore piston kit provides a direct replacement piston and rings for rebuilding Polaris 500cc ATV and UTV engines from 1996 to 2013, featuring a 93mm bore size to restore lost compression and power.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura .040 over bore piston kit is designed for Polaris 500 ATV and UTV models, offering a 93mm bore that increases displacement slightly over stock. It includes the piston, rings, wrist pin, and circlips for a complete top-end rebuild, making it an ideal choice for mechanics and DIY owners restoring engine performance.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOversized .040 (1mm) bore for increased displacement and compression\u003c\/li\u003e\n\u003cli\u003eHigh-strength aluminum alloy construction for durability\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for optimal ring seal\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and circlips for a complete kit\u003c\/li\u003e\n\u003cli\u003eCompatible with stock connecting rods and crankshaft\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\u003e93mm\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 inch (1mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris 500 ATV\/UTV 1996-2013\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 re-plate the cylinder for this over bore piston? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, for a .040 over bore the cylinder must be bored and honed to the correct clearance by a qualified machine shop before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can this kit be used with a stock carburetor? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the slight increase in displacement typically does not require carburetor changes, but tuning may be needed 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":44949747499094,"sku":"SZ1F13946","price":186.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_5fa1dbbc-1756-457d-be21-152c22f61f00.jpg?v=1781397861","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-kit-for-polaris-most-1996-2013-500-atv-utv-93mm","provider":"Solid Spare","version":"1.0","type":"link"}