Description
If you’re running a TRX250X, piston wear directly impacts compression, throttle response, and overall engine reliability. The Wiseco 4440M07600 kit restores your engine’s efficiency with precision-engineered pistons that maintain tight tolerances, whether you’re stock or running modified tune. Upgrading to quality pistons prevents blow-by, stabilizes combustion, and gives you the responsive power delivery your ATV deserves.
This kit features Wiseco’s proven forging process and skirt coating for durability in demanding riding conditions. The 76mm bore and 12:1 compression ratio are optimized specifically for the TRX250X platform, ensuring proper fit and peak performance. Note that you’ll need to source a gasket kit separately to complete your top-end rebuild.
- Bore: 76mm
- Compression: 12:1
- Fitment: TRX250X 1987–1992
- Material: Forged aluminum
- Skirt coating: Anti-friction
- Installation: Bolt-on
- Gasket kit: Sold separately
- MPN: 4440M07600









