Yamaha YZ 450 F (CJ 05) [2004] - forged pistons

PROX forged pistons for Yamaha YZ 450 F (CJ 05) – built in 2004

The PROX forged piston is designed for the Yamaha YZ 450 F (CJ 05) from the entire 2004 model year range. The forged aluminum design combines the specified piston design with a special alloy designed to minimize friction and support reliable operation.

Function and execution

As a spare part for the engine, this piston enables targeted selection based on diameter, oversize and piston compression. The version with hollow piston and 5 valve pockets takes into account the specified specification of this component. Piston compression is standard.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Diameter Ø: 94.96 mm
• Letter oversize: B
• Oversize: +0.01
• Piston compression: standard
• Rings Quantity: Set
• Stroke: 4T
• Specificity: hollow piston / 5 valve pockets

Vehicle assignment

The forged piston fits the Yamaha YZ 450 F (CJ 05), built in 2004. When making the selection, the specified diameter of 94.96 mm, the oversize +0.01 and the code letter B must be taken into account.

Selection note

Before ordering, compare the technical dimensions and design of the existing piston with the product data mentioned. This allows you to specifically determine the right piston variant for the specified vehicle.