Yamaha WR 426 F (CJ 02) [2001-2002] - WÖSSNER forged pistons

WÖSSNER forged pistons for the Yamaha WR 426 F

The WÖSSNER forged piston is assigned to the Yamaha WR 426 F (CJ 02) from the entire 2001-2002 model year range. Its technical characteristics support a targeted selection of the right engine structure and clearly specify the relevant dimensions and design.

Design and technical data

• Piston type: forged
• Material: aluminum
• Diameter Ø: 94.98 mm
• Letter oversize: C
• Oversize: +0.02
• Bore diameter: 95.02mm
• Compression ratio: 12.5:1
• Number of piston rings: 3

Vehicle assignment

The piston is assigned to the Yamaha WR 426 F (CJ 02), built in 2001-2002. The specified diameter of 94.98 mm, the bore diameter of 95.02 mm and the oversize marking C with +0.02 are particularly relevant for the selection.

Factual selection aid

Before ordering, the technical values should be compared with the requirements of the intended engine. In addition to the piston type and the aluminum material, the compression ratio of 12.5:1 and the number of piston rings of 3 must also be taken into account. The vehicle assignment and the year of manufacture serve as a concrete guide for selecting this WÖSSNER forged piston.