Yamaha WR 250 Z [1992-1998] - cast pistons

PROX cast piston for the Yamaha WR 250 Z

The PROX cast piston is designed for the Yamaha WR 250 Z from the entire 1992-1998 model year range. As a cast aluminum version, it combines the specified product features with standard piston compression and is therefore suitable as a clearly defined component for the upper engine range.

Technical features

• Brand: PROX
• Piston Type: Cast
• Material: aluminum
• Piston compression: standard
• Diameter Ø (mm): 68.50
• Letter oversize: 050
• Oversize: +0.05
• Stroke: 2T

Vehicle assignment

The cast piston is assigned to the Yamaha WR 250 Z, built between 1992 and 1998. The full year range makes selection easier based on the existing motorcycle and the specified piston dimension.

Selection according to piston size

With a diameter of 68.50 mm and the stated oversize +0.05, this component is aimed at applications in which the appropriate piston size is selected based on the technical engine data. The oversize marking is 050. The stroke value 2T is specified for the motor version.

Before ordering, the vehicle model, year of manufacture and the required piston size should be compared with the existing engine data. In this way, the assignment of the PROX cast piston to the Yamaha WR 250 Z from the period 1992-1998 can be properly checked.