Yamaha YZ 250 F (CG 27) [2008-2009] - forged pistons

PROX forged piston for Yamaha YZ 250 F (CG 27)

The PROX forged piston is designed for the Yamaha YZ 250 F (CG 27) built in 2008-2009. Its design combines a forged piston type with aluminum alloy and standard piston compression.

Function and execution

The special alloy of the piston is designed to minimize friction. As a result, the design supports reliable operation in the engine. The flat crown with a raised top and five valve pockets describes the specific shape of the piston crown and takes into account the valve areas of the intended application.

Technical data

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

Vehicle assignment

Intended for the Yamaha YZ 250 F (CG 27), built in 2008-2009. The specified diameter of 76.96 mm, the oversize letter B and the oversize information +0.01 are particularly relevant for the selection.

Factual note

Before making your selection, please compare the technical piston data with the intended Yamaha YZ 250 F (CG 27). The design is described as a 4T piston with standard compression and a flat crown with a raised top and five valve pockets.