Description
The Honda TRX400EX demands a piston that can handle sustained high-RPM abuse while maintaining reliable power delivery—the Wiseco 4606M08500 delivers exactly that. With a 10:1 compression ratio and precision-engineered 85mm bore, this kit maximizes combustion efficiency and throttle response without compromising durability. Whether you’re tackling technical terrain or chasing podium finishes, this complete piston assembly gives you the confidence that comes from OEM-quality engineering backed by industry expertise.
- Bore Diameter: 85.00mm
- Compression Ratio: 10:1
- Material: High-silicon aluminum alloy
- Fitment: Honda TRX400EX (1999–2008)
- Kit Contents: Piston, rings, wrist pin, circlips
- Installation: Requires engine removal and rebuild
- Origin: Made in the USA
- MPN: 4606M08500
