{"product_id":"namura-040-over-bore-piston-kit-for-yamaha-beartracker-250-1999-2004-72mm","title":"Namura .040 Over Bore Piston Kit for Yamaha BearTracker 250 1999-2004 72mm","description":"\u003ch2\u003eNamura .040 Over Bore Piston Kit for Yamaha BearTracker 250\u003c\/h2\u003e\u003cp\u003eThis .040 over bore piston kit is a direct replacement for the original piston in Yamaha BearTracker 250 engines, restoring compression and performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .040 over bore piston kit is designed for Yamaha BearTracker 250 ATVs from 1999 to 2004. This piston kit increases displacement slightly while refreshing worn cylinder components. It is an ideal choice for rebuilding your BearTracker 250 engine with a reliable piston kit.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOversized 72mm piston for increased displacement\u003c\/li\u003e\n\u003cli\u003e.040 over bore for a tighter fit and improved compression\u003c\/li\u003e\n\u003cli\u003ePrecision-machined from high-silicon aluminum alloy\u003c\/li\u003e\n\u003cli\u003eIncludes piston rings and wrist pin\u003c\/li\u003e\n\u003cli\u003eEngineered to meet OEM specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha BearTracker 250 1999\u003c\/li\u003e\n\u003cli\u003efor Yamaha BearTracker 250 2000\u003c\/li\u003e\n\u003cli\u003efor Yamaha BearTracker 250 2001\u003c\/li\u003e\n\u003cli\u003efor Yamaha BearTracker 250 2002\u003c\/li\u003e\n\u003cli\u003efor Yamaha BearTracker 250 2003\u003c\/li\u003e\n\u003cli\u003efor Yamaha BearTracker 250 2004\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrail riding\u003c\/li\u003e\n\u003cli\u003eUtility work on farms and ranches\u003c\/li\u003e\n\u003cli\u003eHunting and outdoor recreation\u003c\/li\u003e\n\u003cli\u003eRestoring engine power in older ATVs\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\u003e72mm\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBearTracker 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1999-2004\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 come with rings? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit includes piston rings and wrist pin for a complete installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is a rebore required for this oversize piston? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the cylinder must be bored to .040 oversize to accommodate the 72mm piston.\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":44890493943894,"sku":"SZ1F11936","price":138.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_85f933fc-0c73-4fdd-ac8b-43d7de001c39.jpg?v=1781140717","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-kit-for-yamaha-beartracker-250-1999-2004-72mm","provider":"Solid Spare","version":"1.0","type":"link"}