Honda TRX400EX TRX 400EX 400X 440cc Big Bore Kit Wiseco Piston & Gasket 89mm Kit

🔥 Honda TRX400EX/TRX400X 440cc Big Bore Top‑End Kit – 89mm Wiseco + Cometic 🔥

🛠️ Product Overview

Give your Honda TRX400EX or TRX400X serious power with this complete 440cc 89mm big bore top‑end rebuild kit. Featuring a Wiseco forged piston and Cometic gasket set, it's ready for pump or race fuel and bolts right into your stock engine.

✅ What’s Included

• BPRATV Aftermarket 89 mm Big Bore Cylinder – increases displacement to 440cc
• Wiseco 11:1 Forged Piston Kit – includes piston, rings, pin, and clips
• Cometic Top‑End Gasket Kit – includes MLS head gasket

🚚 Model Fitment

• Honda TRX400EX / TRX400X (1999–2014)

🏆 Why You’ll Love It

• Bolt‑on upgrade: No machine work or modifications required
• Displacement boost: 440cc big bore adds torque and mid‑range power
• Premium components: Wiseco forged piston & Cometic MLS gasket
• Fuel flexibility: Built for pump or race gas
• New sealed packaging: Includes full manufacturer warranty

❓ Frequently Asked Questions

• Q: Is any machine work required?
  A: No – designed for easy drop‑in install.
• Q: What fuel is required?
  A: Works great with pump gas; race gas optional.
• Q: Is piston choice customizable?
  A: Standard Wiseco; message us if you prefer alternatives.

🌟 Why Buy from BPRATV?

BPRATV – The Best Parts. The Best Performance. The Best Price.
Comes new in‑box, backed by manufacturer warranty and our expert support.
BRAPPPPPPPPPP!

Build your 400EX/400X into a 440cc beast—get your kit today! 

🏁Upgrade to big bore power now—bolt-on performance awaits! 🏁

© BPRATV LLC