PISTON KIT 04-05 YFZ450 95.00, FORGED WOSSNER 8655DA

Wossner 95.00mm 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: 95.00mm
• Actual Bore Diameter: 94.95mm
• 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

• 5TG-11631-12-00
• 4865M09500
• Part No: 56-W4835+00A.WO
• Wossner Part No: 8655DA

Vehicle Fitments

• Yamaha YFZ450 (2004 – 2005)