PISTON KIT 85-86 RM125 54.00 WOSSNER 8123DA SUZUKI MX

This Wossner forged piston kit features a standard 54.00mm bore and is designed for Suzuki RM125 models from 1985 to 1986. Manufactured in Germany, the piston utilises an elliptical design that ensures even load distribution during thermal expansion, improving structural integrity and reducing the risk of piston collapse. Engineered for efficient heat transfer, it supports optimal performance in two-stroke engine configurations.

Features

• Forged piston construction for increased durability

• Elliptical design for consistent bearing surface under heat expansion

• Enhanced heat transfer from combustion chamber to cylinder walls

• Made in Germany

• Includes piston, pin, locks, and ring set

Specifications

• Bore Size: 54.00mm

• Actual Bore: 53.94mm

• Stroke: 54.00mm

• Clearance: 0.06mm

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

• Compression Height: 29.50mm

• Displacement: 123 cm³

Cross-Reference OEM Part Numbers

• Piston Kit Part No: 56-W519+000.WO

• Wossner Piston PN: 8123DA

• Lock P/N: CW14

• Pin P/N: WP025

• Ring Set P/N: RSB5400 (x2)

• OEM Reference Numbers: 12101-14850, 519M05400

Vehicle Fitments

• Suzuki RM125 (1985–1986)

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.