
TRX400EX/TRX400X Big Bore Engine Kit 88mm – Wiseco 2006–2014
2006–2014 Honda TRX400EX / TRX400X Big Bore Engine Rebuild Kit – Wiseco 88mm +3mm
🛠️ Boost your TRX400X/EX’s power with this Wiseco big bore engine rebuild kit. Featuring an 88.00mm (+3mm) premium forged piston and a full top and bottom end setup, this kit is perfect for riders demanding more torque and reliability.
✅ What’s Included:
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Forged Wiseco big bore piston (88.00mm / +3.00mm)
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High-quality cam chain
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Complete gasket kit with oil seals
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Main bearings & crank seals
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Hour meter with bracket
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Heavy-duty crankshaft & rod assembly
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All necessary clips, pins, and seals for a full rebuild
📦 Fitment:
Fits the following models:
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2006–2008 Honda TRX400EX
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2009, 2012–2014 Honda TRX400X
🛡️ Warranty Info:
No manufacturer warranty after installation. Professional installation and correct clearances required for durability.
We ship next day most of the time. Modquad parts are shipped Monday-Thursday. Engine Kits are 3-5 business days.
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