Description
When you’re pushing a Honda TRX400EX to its limits, your factory piston won’t cut it. This Wiseco forged piston kit delivers the strength and precision needed to handle aggressive riding while unlocking real performance gains. Backed by Wiseco’s proven track record, it’s the upgrade serious riders choose for reliability and power.
- 86mm Bore – Direct fit TRX400EX
- 10:1 Compression Ratio – Optimized power output
- Forged High-Silicon Aluminum – Superior durability
- Includes Rings & Wrist Pin – Complete kit
- Lightweight Design – Faster throttle response
- Honda TRX400EX 1999-2008 – Vehicle-specific fitment
- Bolt-In Installation – Standard machining required
- MPN: 4606M08600 – Wiseco OEM spec
