PISTON KIT 90-93 YZ125 56.00 B WOSSNER 8114DB YAMAHA MX

The Wossner piston kit 8114DB features a 56.01mm bore (+0.01 oversize), tailored for Yamaha YZ125 two-stroke engines manufactured from 1990 to 1993. Crafted from forged material for increased strength, the piston is engineered to promote efficient heat dissipation and reliability under performance demands. The elliptical design allows uniform expansion under heat, reducing stress points and improving overall piston integrity. Precision-made in Germany, this component is suited for both competition and high-demand recreational use.

Features

• Forged construction ensures superior strength and long-term durability

• Heat-optimised design facilitates effective combustion heat dissipation

• Elliptical shape maintains a uniform bearing surface during expansion

• Manufactured in Germany for high precision and consistency

Specifications

• Display (cm³): 124

• Bore size: 56.01mm (+0.01 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: 8114DB

• Lock: CW16

• Pin: WP036

• Ring Set: RSB5600 x 2

• Rod: P2047

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