Description
If you’re running a Honda TRX400EX, cylinder wear and stock piston limitations will eventually throttle your engine’s potential. The Wiseco Piston Kit 4606M08700 restores combustion efficiency and adds measurable power while maintaining the reliability you need for consistent track or trail performance. This is a straightforward upgrade for riders serious about extracting maximum output from their 400cc powerplant.
Wiseco pistons are purpose-built for high-RPM demands, engineered to tighter tolerances than OEM alternatives. The lightweight design improves throttle response and reduces parasitic mass, letting your engine rev harder and accelerate faster. Installation is straightforward with standard hand tools, though we recommend pairing this kit with a fresh gasket set for a complete refresh.
- Fits: TRX400EX (1999-2008)
- MPN: 4606M08700
- High-precision engineering
- Lightweight piston design
- Improved combustion efficiency
- Enhanced throttle response
- Durable construction materials
- Bolt-on installation
- Gasket kit: sold separately
- Compatible: aftermarket mods
