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.
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
