Description
If you’re running a Yamaha XT350 or TT350, a worn or damaged piston directly impacts combustion efficiency, throttle response, and overall reliability. The Wiseco 4674M08600 replaces your factory piston with a precision-engineered component that restores lost performance and ensures consistent power delivery across the entire RPM range. Built for both trail riding and competitive use, this kit delivers the durability and fitment accuracy that serious riders depend on.
- Wiseco OEM-quality manufacturing
- 86mm bore diameter
- 9:1 compression ratio
- Fits XT350 and TT350 (1985–2000)
- High-strength forged construction
- Lightweight piston design
- Bolt-on installation
- Standard hand tools required
- Gasket kit sold separately
- Competitive and recreational rated
