Wiseco Engine Rebuild Kit for Honda TRX400EX (1999–2004) – Complete 4-Stroke Overhaul Set with 86 mm or 87 mm Piston Options

Description

WISECO Engine Rebuild Kit – Garage Buddy – 4-Stroke for Honda TRX400EX

Looking to restore power and performance to your Honda TRX400EX FourTrax or Sportrax (1999-2004)? The WISECO PWR131A-860 or PWR131A-870 Engine Rebuild Kit is the complete solution for a top-to-bottom engine overhaul. Built with high-quality materials, this Garage Buddy 4-stroke rebuild kit ensures smooth operation, instant throttle response, and long-lasting durability.

What’s Included?

✅ Premium Forged Piston Kit – Maintains stock compression for optimal performance
✅ OEM-Style Crankshaft Assembly – Built stronger than OEM for added durability
✅ Complete Top & Bottom End Components – No need to source extra parts
✅ High-Quality Cam Chain (If Required) – Ensures proper timing and reliability
✅ OEM-Quality Main Bearings, Seals & Gaskets – Keeps your engine running strong
✅ BONUS: Wiseco Hour Meter & Bracket – Track engine runtime & maintenance intervals

🔹 Available Sizes:
✔ PWR131A-860 – 86mm Bore (Oversize +1.00mm, Piston Diameter 85.95mm)
✔ PWR131A-870 – 87mm Bore (Oversize +2.00mm, Piston Diameter 86.95mm)

This rebuild kit is engineered to meet or exceed OEM standards, ensuring a precise fit and long-lasting performance for your Honda TRX400EX.

Fitment:

✅ 1999-2000 Honda TRX400EX FourTrax
✅ 2001-2004 Honda TRX400EX Sportrax

🛒 Order Now & Get Back on the Trails!

FAQs

Q: How do I know which size (86mm or 87mm) I need?
A: If you’re doing a first overbore, go with 86mm (PWR131A-860). If you need a second overbore, choose 87mm (PWR131A-870). Check your cylinder condition before selecting a size.

Q: Does this kit include everything for a complete rebuild?
A: Yes! It includes piston, crankshaft, cam chain (if needed), rod assembly, bearings, seals, gaskets, and a Wiseco hour meter.

Q: Can I install this kit myself?
A: If you have engine rebuilding experience, you can install it at home. Otherwise, professional installation is recommended.

🚀 Don’t wait – upgrade your engine today! 

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