PISTON KIT 90-93 YZ125 56.00 A WOSSNER 8114DA YAMAHA MX

The Wossner piston kit 8114DA is a standard-size forged piston with a 55.94mm bore, designed for Yamaha YZ125 two-stroke models from 1990 to 1993. This piston offers robust performance and reliability, utilising a forged construction and elliptical geometry to enhance heat management and reduce localised stress during operation. Manufactured in Germany, it meets the demands of high-performance off-road applications.

Features

• Forged piston construction for enhanced strength and longevity

• Optimised for superior heat transfer from combustion chamber to cylinder wall

• Elliptical shape provides even bearing surface under thermal expansion

• Precision engineered and manufactured in Germany

Specifications

• Display (cm³): 124

• Bore size: 55.94mm (standard for 56mm cylinder)

• Stroke (mm): 50.70

• Piston-to-wall clearance (mm): 0.06

• Compression height (mm): 28.00

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

Cross-Reference OEM Part Numbers

• Wossner Piston: 8114DA

• Lock: CW16

• Pin: WP036

• Ring Set: RSB5600 x 2

• Internal Reference Part No.: 56-W629+00A.WO

• OEM Cross-Reference: 4DB-11631-00-A0

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.