YAMAHA YZ 250 [1988-1998] - cast pistons

PROX cast piston for Yamaha YZ 250 from 1988 to 1998

The PROX cast piston is assigned to the Yamaha YZ 250 in the full year range 1988-1998. As a cast aluminum piston, it is suitable for the 2T engine and combines a clearly defined design with precise technical characteristics for selecting the right spare part.

Design and technical data

• Piston Type: Cast
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 67.95 mm
• Letter oversize: B
• Oversize: +0.01
• Stroke: 2T

Constructive features

The piston has a curved piston shape, a reed cutout and a MoS2 coating. These features characterize the specific PROX version and support the clear assignment when selecting the appropriate engine parts.

Vehicle assignment

The cast piston is for the YAMAHA YZ 250, built between 1988 and 1998 provided. The assignment should be based on the complete year of manufacture as well as the specified piston dimensions and oversize designation.

Selection note

Before ordering, the diameter of 67.95 mm, the marking B and the oversize +0.01 must be compared with the required piston size. This means that the standard compression can be specifically combined with the intended 2T version.