WOSSNER 56mm PISTON KIT C, YAMAHA YZ125 1990-1993

The Wossner piston kit 8114DC features a 56.02mm bore (+0.02 oversize), designed specifically for Yamaha YZ125 two-stroke motorcycles produced from 1990 to 1993. Built using high-strength forged materials, this piston ensures durability under extreme conditions. Its elliptical geometry supports consistent expansion during engine operation, helping to evenly distribute loads and prevent piston collapse. The kit is manufactured in Germany, meeting strict quality and performance standards.

Features

• Forged piston construction for strength and long-term reliability

• Enhanced heat dissipation from combustion chamber to cylinder wall

• Elliptical profile reduces localised pressure and evenly distributes thrust loads

• Precision engineered in Germany for consistent performance

Specifications

• Display (cm³): 124

• Bore size: 56.02mm (+0.02 oversize)

• 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: 8114DC

• Lock: CW16

• Pin: WP036

• Ring Set: RSB5600 x 2

• Rod: P2047

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

Vehicle Fitments

• 1990 Yamaha YZ 125

• 1991 Yamaha YZ 125

• 1992 Yamaha YZ 125

• 1993 Yamaha YZ 125

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.