{"product_id":"namura-040-over-bore-piston-kit-for-honda-trx400ex-trx400x-sportrax-86mm","title":"Namura .040 Over Bore Piston Kit for Honda TRX400EX \u0026 TRX400X Sportrax 86mm","description":"\u003ch2\u003eNamura .040 Over Bore Piston Kit for Honda TRX400EX \u0026amp; TRX400X Sportrax 86mm\u003c\/h2\u003e\u003cp\u003eThis Namura .040 over bore piston kit provides a piston and rings for a 0.040-inch overbore rebuild on Honda TRX400EX and TRX400X Sportrax engines.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .040 Over Bore Piston Kit is designed for Honda TRX400EX and TRX400X Sportrax models requiring a 0.040-inch oversized piston. This over bore piston kit includes a high-quality piston and rings to match the larger bore diameter. It is an excellent choice for restoring compression after cylinder wear.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined piston for .040 overbore\u003c\/li\u003e\n\u003cli\u003eHigh-strength ring set for optimal seal\u003c\/li\u003e\n\u003cli\u003eDesigned for 86mm final bore diameter\u003c\/li\u003e\n\u003cli\u003eRestores compression and power\u003c\/li\u003e\n\u003cli\u003eDirect fit for TRX400EX\/TRX400X\u003c\/li\u003e\n\u003cli\u003eDurable aluminum alloy construction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Honda TRX400EX\u003c\/li\u003e\n\u003cli\u003efor Honda TRX400X Sportrax\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding top end of Honda TRX400EX and TRX400X ATVs\u003c\/li\u003e\n\u003cli\u003eRestoring compression after cylinder wear or damage\u003c\/li\u003e\n\u003cli\u003eImproving engine performance for trail riding or racing\u003c\/li\u003e\n\u003cli\u003eReplacing worn piston and rings during engine overhaul\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\u003e86mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.040 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHonda TRX400EX \u0026amp; TRX400X Sportrax\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Components\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, Rings\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 kit require machining the cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the cylinder must be bored to 86mm to match this .040 over piston. Always have a qualified machine shop perform the work.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this piston compatible with the stock crankshaft? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this kit uses the standard wrist pin and fits the stock connecting rod for these models.\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":44890763100246,"sku":"SZ1F13001","price":160.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_bef2eeee-daeb-469d-a067-cc9dd9c06887.jpg?v=1781143507","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-kit-for-honda-trx400ex-trx400x-sportrax-86mm","provider":"Solid Spare","version":"1.0","type":"link"}