Wiseco PWR131A850 Garage Buddy Complete Engine Rebuild Kit 85mm 10:1 CR

The Wiseco PWR131A850 Garage Buddy Complete Engine Rebuild Kit is an all-in-one 4-stroke engine rebuild solution engineered for the Honda TRX400EX Sportrax and FourTrax. With a 85mm bore and 10:1 compression ratio, this kit delivers everything needed for a full top-end and bottom-end overhaul in a single package — no hunting down separate components.

At the heart of the kit is a Wiseco forged piston, built to withstand the demands of high-performance ATV riding. Forged pistons offer superior strength and durability over cast alternatives, handling the heat and stress of aggressive riding conditions with ease. Every component is precision-engineered to meet or exceed OEM specifications and tolerances.

Kit Includes:

• Wiseco forged 4-stroke piston kit with piston rings — 85mm bore, 10:1 compression ratio
• Crankshaft assembly — OEM-style construction built for added durability
• OEM-quality main bearings — precision-fit for reliable operation
• Complete gasket, seal, and o-ring set — full engine sealing coverage
• Cam chain — included for proper timing and reliability (4-stroke application)
• Wiseco hour meter and bracket — track engine runtime and critical service intervals

Wiseco's Garage Buddy line simplifies the rebuild process by consolidating all top-end and bottom-end components into one kit. Made in the USA and backed by Wiseco's in-house dyno testing and R&D program, this kit is the trusted choice for restoring power and performance to your Honda ATV engine.