Honda 400EX 400X Hot Rods Engine Rebuild Kit - 85mm Cylinder

✓ Fits

• 1999 to 2004 Honda TRX400EX (select 1999-2004 Part #421-0080 variant)
• 2005 to 2008 Honda TRX400EX Sportrax (select 2005-2014 Part #421-0016 variant)
• 2009 to 2014 Honda TRX400X (select 2005-2014 Part #421-0016 variant)
• Choose the correct year variant at checkout - the bottom end kit differs between 1999-2004 and 2005-2014

✓ Features

• Complete engine rebuild kit built from brand-name components, no generic knockoffs or mystery metals
• Hot Rods bottom end kit with a precision-balanced crankshaft assembly, main bearings, seals, and full gasket set for durable, smooth power delivery
• Wiseco 10:1 compression forged piston handles both pump gas and race fuel without detonation issues
• 85mm cylinder comes pre-finished and ready to install - no machine work required
• Every part arrives factory-fresh in original manufacturer packaging

✓ What's Included

• Hot Rods bottom end kit: crankshaft assembly, main bearings, seals, and complete gasket set
• Wiseco forged 85mm piston kit with rings, wrist pin, and circlips
• 85mm bore cylinder, pre-finished and ready to install

✓ Specs

• Bore: 85mm
• Compression: 10:1 forged Wiseco piston
• Bottom end: Hot Rods 421-0080 (1999-2004) or 421-0016 (2005-2014)
• Cylinder: Dune Goons brand, pre-finished, no machine work needed
• Fits Honda TRX400EX, TRX400EX Sportrax, and TRX400X, 1999-2014

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