PISTON KIT 90-93 YZ125 57.00 WOSSNER 8114D100 YAMAHA MX

The Wossner 8114D100 piston kit features a 57.00mm bore (actual 56.94mm) and is designed for exceptional strength and optimised heat transfer to the cylinder walls. The forged, elliptically designed piston ensures a uniform bearing surface during heat expansion, minimising localised pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany, this kit includes essential components for reliable engine performance and is compatible with Yamaha YZ125 models from 1990 to 1993.

Features

• Forged piston construction for enhanced strength and durability

• Engineered for efficient combustion chamber heat transfer

• Elliptical design provides uniform bearing surface under thermal expansion

• Reduces localised pressure and prevents piston collapse

• Made in Germany

Specifications

• Bore Size: 57.00mm (Actual 56.94mm)

• Display (cm³): 124

• Stroke (mm): 50.70

• Clearance (mm): 0.06

• Compression Ratio (Wossner 2-stroke): 2 stroke

• Compression Ratio (OEM 2-stroke): 2 stroke

• Compression Height (mm): 28.00

Cross-Reference OEM Part Numbers

• Wossner Piston Kit Part No: 8114D100

• Lock Part No: CW16

• Pin Part No: WP036

• Ring Set Part No: RSB5700

• Rod Part No: P2047

Vehicle Fitments

• 1990 Yamaha YZ125

• 1991 Yamaha YZ125

• 1992 Yamaha YZ125

• 1993 Yamaha YZ125

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.