Yamaha WR 450 F (CJ 04) [2003-2004] - WÖSSNER Pro Series forged pistons

WÖSSNER Pro Series forged pistons for Yamaha WR 450 F

The WÖSSNER Pro Series forged piston is designed for the Yamaha WR 450 F (CJ 04) built between 2003 and 2004. The forged aluminum design provides a clearly defined basis for repairing the engine with the appropriate oversize and specified compression ratio.

Technical features

• Piston type: forged
• Material: aluminum
• Piston compression: highly compressed
• Diameter Ø: 94.97 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 95.01mm
• Compression ratio: 13.5:1
• Number of rings: 2

Suitable for

The piston is assigned to the Yamaha WR 450 F (CJ 04), built in 2003-2004. The combination of code letter B, +0.01 oversize and a bore diameter of 95.01 mm supports targeted selection based on the existing cylinder dimensions.

Selection note

Before ordering, the specified dimensions and design should be compared with the vehicle's engine data. The diameter Ø of 94.97 mm, the bore diameter of 95.01 mm and the compression ratio of 13.5:1 are particularly relevant.