Yamaha WR 450 F (CJ 13) [2008-2011] - WÖSSNER forged pistons

WÖSSNER forged pistons for Yamaha WR 450 F

The WÖSSNER forged aluminum piston is designed for the Yamaha WR 450 F (CJ 13) built between 2008 and 2011. As a forged piston, it offers a clearly defined technical design for use in the upper engine range.

Technical features

• Material: aluminum
• Piston Type: Forged
• Diameter Ø: 94.96 mm
• Bore diameter: 95.00 mm
• Letter oversize: A
• Oversize: STD
• Compression ratio: 12.3:1
• Number of piston rings: 2

Vehicle assignment

The forged piston is intended for the Yamaha WR 450 F (CJ 13), built between 2008 and 2011. Before making your selection, please compare the specified diameters, the marking “A” and the version “STD” with the requirements of your engine.

Execution for engine overhaul

With a diameter of 94.96 mm and a bore diameter of 95.00 mm, the relevant dimensions are clearly indicated. The compression ratio of 12.3:1 and the design with two piston rings round off the technical characteristics of this WÖSSNER piston.