PISTON KIT 96-09 TTR250 73.00, FORGEDWOSSNER 8646DA, 4GY-11631-00-C0

Wossner forged piston kit designed for durability and high performance. Engineered for optimal heat transfer to cylinder walls, ensuring efficient combustion. The elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany to high-quality standards.

Features

• Forged piston for enhanced strength and durability
• Optimized heat transfer for efficient combustion
• Elliptical design to prevent piston collapse
• Manufactured in Germany

Specifications

• Bore Size: 73.00mm
• Actual Bore Diameter: 72.95mm
• Displacement: 124 cm³
• Stroke: 59.60mm
• Clearance: 0.05mm
• Wossner Compression Ratio: OEM
• OEM Compression Ratio: 10.20:1
• Dome Volume: +1.40 cm³
• Compression Height: 23.60mm
• Theoretical Weight: Not specified

Included Components

• Lock Part Number: CW18
• Pin Part Number: WP031
• Ring Set Part Number: 730XDS

Cross-Reference OEM Part Numbers

• 4GY-11631-00-C0

Vehicle Fitments

• Yamaha TTR 250 (1996-2009)