PISTON KIT SET/4 YZF R6 01-05, WOSSNER K8831D100-4 YAMAHA
Wossner forged piston kit set of 4 with +1mm oversize, bore 66.50mm and bore 66.44mm. This piston kit is designed for superior strength and engineered to provide the best possible path for combustion chamber heat transfer to cylinder walls. The elliptical design provides a more uniform bearing surface under piston heat expansion, eliminating localized pressure and distributing thrust loads more evenly, thereby preventing piston collapse. Made in Germany. Part number 56-W9904.100.WO. Includes piston pin WP036, replacement ring set 665XKS, and clip CW16. Displacement 600cc. Compression height 21.20mm. Compression ratio OEM 12.40:1. Dome volume -0.10cm3. Theoretical weight 1070g.
- SKU
- 56-W9904.100.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Piston Kit - Set of 4
Enhance your motorcycle's performance with this Wossner Piston Kit, designed for superior strength and combustion efficiency. This kit includes four pistons, each precisely engineered to optimize engine power and reliability.
Key Features:
- Set includes four Wossner forged pistons.
- Piston Bore: 66.50mm
- Oversize: +1.00mm
- Engineered for optimal combustion chamber heat transfer.
- Elliptically designed for uniform bearing surface under heat expansion.
- Distributes thrust loads evenly to prevent piston collapse.
- Manufactured in Germany to high quality standards.
- Compression Height: 21.20mm
- Dome Volume: -0.10 cm3
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 12.40:1
- Theoretical Weight: 1070g
This Wossner piston kit is a premium upgrade for riders seeking peak engine performance and durability.


