Wossner 95.01mm high-compression forged piston kit is designed for enhanced engine performance. Engineered for optimal heat transfer, it ensures efficient cooling of the combustion chamber. The elliptical design provides a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability.

Features

• High-compression design for increased engine performance


• Forged construction for enhanced strength and longevity


• Optimized heat transfer for efficient cooling


• Elliptical design prevents piston collapse and ensures even load distribution


• Manufactured in Germany for high-quality standards

Specifications

• Bore Size: 95.01mm


• Actual Bore Diameter: 94.96mm


• Displacement: 449 cm³


• Stroke: 62.00mm


• Clearance: 0.05mm


• Wossner Compression Ratio: 12.60:1


• OEM Compression Ratio: 11.90:1


• Dome Volume: -2.80 cm³


• Compression Height: 25.00mm


• Gasket Part Number: D4032


• Lock Part Number: CW20


• Pin Part Number: WP038


• Ring Set Part Number: 950ADS-2


• Rod Part Number: P4029

Cross-Reference OEM Part Numbers

• Part No: 56-W4835+00B.WO


• Wossner Part No: 8655DB

Vehicle Fitments

• Yamaha YFZ450 (2004 - 2005)