Description
A 1998-2004 Honda TRX450ES Foreman due for a top-end rebuild can use this Wiseco 4825M piston, sized to a 9.5:1 compression ratio for that engine.
Foreman engines that have logged hard trail or work miles eventually lose compression as the factory piston and rings wear, and the fix is a piston matched to the bore rather than a mismatched aftermarket substitute. Wiseco builds this piston as part of a broader kit approach that also covers the gasket set needed for the job.
- Dedicated forging built around the TRX450ES Foreman engine
- Aerospace alloy construction for strength without excess weight
- Dome design intended to improve flame travel through the chamber
- Chrome plated pin with horizontal slot oiling to cut friction and resist scuffing
- Pressure seal groove for maximum ring seal
- Dedicated rings for maximum compression and oil control
- Wiseco top end gasket kit available alongside the piston for a complete job
Sized to the 9.5:1 compression spec for the 1998-2004 Honda TRX450ES Foreman, this piston fits owners and shops handling a full top-end rebuild on this specific ATV.
