Description
The Wossner 8216DA piston kit delivers the reliability and performance demanded by 2-stroke racers who can’t afford downtime or power loss. Purpose-built for the YZ250 platform across three decades of production, this complete kit eliminates the guesswork of sourcing individual components. Whether you’re refreshing a worn engine or optimizing a competition build, Wossner’s German-engineered precision ensures your engine runs cleaner, quieter, and stronger.
What’s Included:
- Piston (66.35mm bore)
- Compression rings
- Wrist pin
- Retaining clips
Technical Specifications:
- Material: 4032 T6 forged aluminum
- Heat treatment: T6 hardened
- Skirt coating: Friction-reducing, permanent
- Design method: FEA-optimized
- Manufacturing: German precision engineering
- Fitment: Yamaha YZ250 1999-2025
- Installation: Bolt-on replacement
- MPN: 8216DA









