{"product_id":"namura-040-over-bore-piston-kit-fits-kawasaki-kdx50-2003-2004-2005-2006-42mm","title":"Namura .040 Over Bore Piston Kit fits Kawasaki KDX50 2003 2004 2005 2006 42mm","description":"\u003ch2\u003e.040 Over Bore Piston Kit for Kawasaki KDX50\u003c\/h2\u003e\u003cp\u003eThis Namura .040 over bore piston kit is engineered for Kawasaki KDX50 models from 2003 to 2006, with a 42mm bore size.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis .040 over bore piston kit from Namura provides a 42mm piston for Kawasaki KDX50 2003-2006 engines, allowing oversize rebuilding of worn cylinders. The kit includes piston, rings, and pin for a complete top-end refresh.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOversized .040 for removing cylinder taper and wear\u003c\/li\u003e\n\u003cli\u003eHigh-silicon aluminum alloy for thermal stability\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for secure ring fit\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and circlips for full installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Kawasaki KDX50 (2003-2006)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end engine rebuilds for youth dirt bikes\u003c\/li\u003e\n\u003cli\u003eTrail riding and motocross practice\u003c\/li\u003e\n\u003cli\u003eRestoring compression and power in worn engines\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\u003e42mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverbore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 inch\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, 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 Is a new cylinder needed for this overbore kit? \u003cstrong\u003eA:\u003c\/strong\u003e This kit fits a cylinder bored to .040 oversize; your existing cylinder must be machined to 42mm for proper fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What ring end gap should I set? \u003cstrong\u003eA:\u003c\/strong\u003e Follow the manufacturer's spec, typically around 0.15-0.20mm, but always measure and adjust.\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":44888376377430,"sku":"SZ1F08500","price":76.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_3d5eb8bc-ba64-439c-a11c-c48581e10fb2.jpg?v=1781091835","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-kit-fits-kawasaki-kdx50-2003-2004-2005-2006-42mm","provider":"Solid Spare","version":"1.0","type":"link"}