PISTON KIT 94-96 YZ125 55.00 WOSSNER 8116D100 YAMAHA MX

Wossner Piston Kit 8116D100 is a +1.00 oversize forged piston designed for Yamaha YZ125 models from 1994 to 1996, featuring a 55.00mm bore. Produced in Germany, this piston delivers robust performance and thermal efficiency. Its elliptical profile ensures consistent load distribution during heat expansion, reducing localised pressure zones and increasing reliability under high-stress engine conditions.

Features

• High-strength forged piston for maximum durability

• Elliptical design distributes thrust forces evenly under thermal load

• Optimised for efficient heat transfer to cylinder walls

• Manufactured with precision in Germany

Specifications

• Bore: 55.00 mm

• Actual Piston Diameter: 54.94 mm

• Stroke: 54.50 mm

• Displacement: 124 cm³

• Clearance: 0.06 mm

• Compression Height: 28.00 mm

• Wossner Compression Ratio: 2-stroke

• OEM Compression Ratio: 2-stroke

Cross-Reference OEM Part Numbers

• Wossner Piston: 8116D100

• Lock: CW16

• Pin: WP036

• Ring Set: RSB5500

• Rod: P2047

• Internal Part No: 56-W647+100.WO

Vehicle Fitments

• 1994 Yamaha YZ125

• 1995 Yamaha YZ125

• 1996 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.