Description
Stock pistons can’t handle sustained high RPM or aggressive tuning without risking catastrophic failure. The Wossner 8563DB delivers the strength and precision engineering needed to safely extract maximum performance from your DR-Z400S, with a 12.25:1 compression ratio that unlocks real horsepower gains while maintaining reliability under load. This complete kit eliminates guesswork—you get everything needed for a straightforward rebuild without sourcing individual components.
Wossner’s German engineering combines 4032 T6 forged aluminum with a permanent skirt coating that reduces friction and piston rock, resulting in quieter operation and extended engine life. Every aspect of this piston is optimized through Finite Element Analysis to handle the demands of serious riding, whether you’re pushing hard on the trail or the track.
- 90mm bore diameter
- 12.25:1 compression ratio
- 4032 T6 forged aluminum
- Complete kit included
- Piston, rings, pin, clips
- Permanent skirt coating
- T6 heat-treated
- FEA-optimized design
- Suzuki DR-Z400S fitment
- 2000-2020 model years
- MPN: 8563DB
- Bolt-on installation
