Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER forged pistons

WÖSSNER forged pistons for Yamaha YZ 450 F (CJ 03) from 2003

The WÖSSNER forged piston is designed for the Yamaha YZ 450 F (CJ 03), built in 2003. Its technical characteristics make it easier to select the right engine structure.

Technical features

• Material: aluminum
• Piston Type: Forged
• Diameter Ø: 94.96 mm
• Bore diameter: 95.00 mm
• Compression ratio: 12.3:1
• Number of rings: 2
• Stroke: 2T

Execution and assignment

The piston is marked with the letter for oversize A. STD is specified as oversize. This combination of piston type, dimensions and markings supports precise assignment when selecting the spare part.

The forged piston is suitable for the Yamaha YZ 450 F (CJ 03), built in 2003. The vehicle assignment refers to this entire year of construction.

Technical selection

The piston diameter of 94.96 mm, the bore diameter of 95.00 mm and the compression ratio of 12.3:1 are particularly important when ordering. In addition, the markings “A” for letters oversize and “STD” for oversize provide important information about the intended design.