PISTON KIT 04-17 XT660R 100 C, FORGED WOSSNER 8617DC
Piston kit 100.02mm Bore 99.97 Wossner 8617DC (+0.02). Wossner forged pistons are superior in strength and design. Engineered to provide the best possible path for combustion chamber heat transfer to cylinder walls. Elliptically designed to provide 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 No. 56-W203.C.WO. Wossner Piston Yamaha XT660R. Lock P/N CW23. Pin P/N WP024. Ring Set P/N 1000XSY-3. Display (cm3) 660. Hub stroke (mm) 84.00. Clearance (mm) 0.05. Wossner compression Ratio: 10.70:1. OEM Compression ratio: 10.00:1. Dome volume (cm3) -0.30. Compression height (mm) 27.50. Theoretical weight (G) 528.
- SKU
- 56-W203.C.WO
- Brand
- Wossner
- Availability
- Out of Stock
FULL DESCRIPTION
Wossner Forged Piston Kit for Yamaha XT660R
Upgrade your engine's performance and durability with this high-quality Wossner forged piston kit. Engineered for precision and strength, this piston kit is designed to meet the demands of performance motorcycle enthusiasts.
Key Features:
- Forged Strength: Wossner forged pistons offer superior strength and reliability compared to cast pistons, ensuring longevity under high stress.
- Optimized Heat Transfer: Designed to efficiently transfer combustion chamber heat to the cylinder walls, promoting optimal engine temperature management.
- Elliptical Design: The piston features an elliptical shape that adapts to heat expansion, providing a more uniform bearing surface. This eliminates localized pressure and distributes thrust loads evenly, preventing piston collapse and ensuring consistent performance.
- Precision Sizing: Includes a piston with a 100.02mm bore and a 99.97mm bore measurement, with a +0.02mm offset for precise fitting.
- Performance Enhancement: Features a Wossner compression ratio of 10.70:1, compared to the OEM ratio of 10.00:1, for increased power output.
- Quality Craftsmanship: Made in Germany, guaranteeing exceptional manufacturing standards.
- Complete Kit: This kit includes the piston, lock pin (CW23), pin (WP024), and ring set (1000XSY-3) for a comprehensive engine rebuild.
- Specific Dimensions: Includes details such as a 27.50mm compression height and -0.30 cm³ dome volume.


