Yamaha YZ 250 F (CG 27) [2007] - forged pistons

PROX forged pistons for the Yamaha YZ 250 F

The PROX forged piston is designed for the Yamaha YZ 250 F (CG 27) built in 2007. Its forged aluminum design and special alloy are designed for low-friction function and high reliability in engine operation.

Function and execution

The design as a hollow piston with 5 valve pockets takes into account the specified requirements of the corresponding 4T engine. Standard piston compression supports selection as a suitable replacement part within the specified vehicle specification.

Technical data

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

Vehicle assignment

Suitable for the Yamaha YZ 250 F (CG 27), built in 2007. The assignment refers to this vehicle and the specified year of manufacture.

Selection note

Before ordering, the piston diameter of 76.96 mm, the oversize +0.01 and the marking B should be compared with the existing engine and the intended spare parts configuration. This means that the design can be selected specifically based on the technical data.