PISTON KIT 94-96 YZ125 54.50, WOSSNER 8116D050 YAMAHA MX

Wossner Piston Kit 8116D050 is a +0.50 oversize forged piston designed for Yamaha YZ125 models from 1994 to 1996, with a 54.50mm bore. Manufactured in Germany, this piston delivers strength, precision, and excellent thermal efficiency. Its elliptical profile allows for even load distribution during expansion, minimising localised pressure and enhancing engine reliability under high-performance conditions.

Features

• Forged piston ensures durability and structural integrity under load

• Elliptical design distributes thrust loads evenly during thermal expansion

• Optimised for efficient combustion heat transfer to cylinder walls

• Precision engineered in Germany

Specifications

• Bore: 54.50 mm

• Actual Piston Diameter: 54.44 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: 8116D050

• Lock: CW16

• Pin: WP036

• Ring Set: RSB5450

• Rod: P2047

• Internal Part No: 56-W647+050.WO

Vehicle Fitments

• 1994 Yamaha YZ125

• 1995 Yamaha YZ125

• 1996 Yamaha YZ125