PISTON KIT 86-88 YZ125 56.00 WOSSNER 8118DA YAMAHA MX

This Wossner 56.00mm standard bore forged piston kit is designed for Yamaha YZ125 models from 1986 to 1988. Manufactured in Germany, it features a forged construction and elliptical design that enhances durability, manages heat expansion effectively, and distributes mechanical loads evenly. Engineered for two-stroke performance, the piston promotes efficient heat transfer from the combustion chamber to the cylinder walls.

Features

• Forged piston construction for superior strength

• Elliptical design ensures uniform bearing surface during heat expansion

• Even thrust load distribution helps prevent localised stress and piston collapse

• Designed for efficient combustion heat transfer to cylinder walls

• Manufactured in Germany

Specifications

• Bore: 56.00mm

• Actual diameter: 55.94mm

• Displacement: 123 cm³

• Stroke: 50.00mm

• Clearance: 0.06mm

• Compression height: 30.00mm

• Compression ratio: 2-stroke

Cross-Reference OEM Part Numbers

• Piston Kit Part No.: 56-W559+000.WO

• Wossner Piston Kit No.: 8118DA

• Lock: CW16

• Pin: WP036

• Ring Set: RSB5600

• OEM Reference: 1LX-11635-00-00

Vehicle Fitments

• Yamaha YZ125 1986

• Yamaha YZ125 1987

• Yamaha YZ125 1988

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.