Description
The Wossner Piston Kit 8104DC is engineered for serious YZ85 builders who demand reliability under sustained high-RPM conditions. A worn or compromised piston directly impacts combustion efficiency, throttle response, and engine longevity—this complete kit eliminates that weak point. The permanent skirt coating and T6 heat-treated aluminum ensure your 2-stroke engine can handle aggressive riding without premature wear.
- 4032 T6 forged aluminum
- Bore diameter: 47.47mm
- Fits Yamaha YZ85 (2002–2025)
- Complete kit included
- Piston, rings, pin, clips
- Permanent skirt coating
- Reduces friction and rock
- German-engineered design
- FEA-optimized geometry
- T6 heat-treated construction
- Superior heat resistance
- Lightweight performance build
- Bolt-on installation
- MPN: 8104DC






