WOSSNER 57.5mm PISTON KIT YAMAHA YZ125 1984

This Wossner forged piston kit with a 57.50mm bore (57.44mm) is designed for the 1984 Yamaha YZ125. Engineered and manufactured in Germany, it provides increased durability and optimized thermal performance. The elliptical design ensures an even bearing surface during piston expansion, effectively distributing thrust loads and minimizing the risk of piston collapse.

Features

• Forged construction for enhanced mechanical strength

• Engineered for efficient heat transfer to cylinder walls

• Elliptical profile provides uniform load distribution under thermal expansion

• Made in Germany

Specifications

• Bore size: 57.50mm (57.44mm)

• Display volume: 123 cm³

• Stroke: 50.00 mm

• Clearance: 0.06 mm

• Compression height: 30.80 mm

• Theoretical weight: Not specified

• Compression ratio: 2-stroke (Wossner and OEM)

Cross-Reference OEM Part Numbers

• Piston: 8120D150

• Lock: CW16

• Pin: WP036

• Ring Set: RSB5750

Vehicle Fitments

• Yamaha YZ125 1984

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.