Wossner forged piston kit with a 72.00mm bore and 71.94mm diameter, designed for Yamaha models. Manufactured in Germany, this piston offers superior strength and design, ensuring optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse.

Features

• Forged construction for superior strength


• Optimized heat transfer for efficient combustion


• Elliptical design for uniform load distribution


• Manufactured in Germany

Specifications

• Bore: 72.00mm


• Diameter: 71.94mm


• Display (cm³): 246


• Stroke (mm): 64.00


• Clearance (mm): 0.06


• Compression Ratio: 2-Stroke


• Compression Height (mm): 33.00

Cross-Reference OEM Part Numbers

• Wossner Piston Yamaha YZ250 (PN# 8179D200)


• Lock P/N: CW18


• Pin P/N: WP033


• Ring Set P/N: RSB7200 x 2

Vehicle Fitments

• Yamaha YZ250 (1976-1979)


• Yamaha IT250 (1978-1980)


• Yamaha TY250 (1974-1978)


• Yamaha MC250 (1973-1975)


• Yamaha DT250 (1974-1979)