Wossner Piston Kit Yamaha YZ450F 2003-2004 8562DA

If you're running a YZ450F hard—whether on the track or in practice—piston failure isn't an option. The Wossner 8562DA gives you the durability and reliability needed to push your bike to its limits without compromise. Built with German engineering and forged aluminum that handles extreme heat and load, this complete kit delivers the performance consistency that separates competitive riders from the rest.

This is a complete, bolt-on solution. You get the piston, rings, wrist pin, and circlips in one package—everything needed for a full refresh. The 4032 T6 forged aluminum resists deformation under high combustion pressures, while the proprietary skirt coating reduces friction and piston rock, keeping your engine running quieter and more efficiently. Wossner's FEA-optimized design ensures every dimension is precision-engineered for the YZ450F's demanding operating conditions.

• 4032 T6 forged aluminum
• Complete kit included
• Permanent skirt coating
• T6 heat-treated
• FEA-optimized design
• German-engineered
• Fits: YZ450F 2003–2004
• MPN: 8562DA