Yamaha YZ 250 F (CG 18) [2004] - forged pistons

PROX forged pistons for Yamaha YZ 250 F (CG 18) from 2004

The PROX forged piston is designed for the Yamaha YZ 250 F (CG 18), built in 2004. Its forged aluminum design combines the specified piston construction with a special alloy. This is designed to minimize friction and thus support reliable piston function.

Function and execution

The piston shape is a hollow piston with 5 valve pockets. The standard piston compression enables a clear assignment within the specified technical version. The piston is specified for a 4T engine.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 76.96 mm
• Letter oversize: B
• Oversize: +0.01
• Rings Quantity: Set
• Stroke: 4T
• Specificity: hollow piston / 5 valve pockets

Vehicle assignment

The PROX forged piston fits the Yamaha YZ 250 F (CG 18) from 2004. When making the selection, the diameter Ø of 76.96 mm, the oversize B with +0.01 and the standard piston compression should be taken into account.