Yamaha WR 250 F (CG 16) [2003-2004] - forged pistons

PROX forged pistons for Yamaha WR 250 F

The PROX forged piston is designed for the Yamaha WR 250 F (CG 16) in the entire 2003-2004 model year range. The aluminum design combines the forged piston construction with a special alloy that minimizes friction and is therefore aimed at reliable operation.

Function and execution

As a forged piston with standard compression, this component is suitable for the defined engine configuration. The design as a hollow piston with 5 valve pockets takes into account the design requirements of the appropriate engine. The diameter is Ø 76.96 mm; the oversize is given as +0.01 and marked by the letter B.

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: hollow piston / 5 valve pockets

Vehicle assignment

The forged piston fits the Yamaha WR 250 F (CG 16), built between 2003 and 2004.

Selection note

The diameter Ø 76.96 mm, the marking B, the oversize +0.01 and the standard compression are particularly important for the selection. These technical features should be compared with the existing engine structure before ordering.