{"product_id":"namura-060-over-bore-piston-kit-for-honda-trx400ex-trx400x-sportrax-86-5mm","title":"Namura .060 Over Bore Piston Kit for Honda TRX400EX \u0026 TRX400X Sportrax 86.5mm","description":"\u003ch2\u003eNamura .060 Over Bore Piston Kit for Honda TRX400EX \u0026amp; TRX400X Sportrax 86.5mm\u003c\/h2\u003e\u003cp\u003eThis Namura .060 over bore piston kit is a direct replacement performance part for Honda TRX400EX and TRX400X Sportrax ATVs, featuring a 86.5mm bore size to restore cylinder compression and power after a top-end rebuild.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura .060 over bore piston kit is engineered for Honda TRX400EX and TRX400X Sportrax models, delivering a precise 86.5mm bore size for reliable performance. Designed as a drop-in replacement, it restores lost compression and extends engine life. Whether rebuilding or replacing the piston, this .060 over bore piston kit ensures a proper fit for your Sportrax 400cc engine.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-strength aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003e.060 oversize (1.5mm) restores cylinder bore to like-new condition\u003c\/li\u003e\n\u003cli\u003eIncludes piston, rings, wrist pin, and circlips for a complete kit\u003c\/li\u003e\n\u003cli\u003eDesigned for Honda TRX400EX and TRX400X engines\u003c\/li\u003e\n\u003cli\u003e86.5mm bore diameter matches OEM specifications for overbore\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\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrail riding and recreational ATV use\u003c\/li\u003e\n\u003cli\u003eCompetition motocross and cross-country racing\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds and top-end overhauls\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance to restore compression and power\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNamura\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e86.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.060 (1.5mm)\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 \/ TRX400X\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 this piston kit compatible with stock Honda cylinders? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, when the cylinder is bored to .060 over size, this kit is a direct fit for the specified Honda models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include all necessary components? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit includes the piston, rings, wrist pin, and circlips, everything needed for a complete piston replacement.\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":44890762575958,"sku":"SZ1F12997","price":160.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_b01925b2-273f-4995-a413-9340cc00b11e.jpg?v=1781143503","url":"https:\/\/www.solidspare.com\/products\/namura-060-over-bore-piston-kit-for-honda-trx400ex-trx400x-sportrax-86-5mm","provider":"Solid Spare","version":"1.0","type":"link"}