YAMAHA YZ 250 [1988-1998] - cast pistons

PROX cast piston for YAMAHA YZ 250 1988-1998

The PROX cast piston is assigned to the YAMAHA YZ 250 in the full year range from 1988 to 1998. Its design combines a cast aluminum piston with standard piston compression and clearly defined dimensions for selecting the appropriate replacement part.

Design and features

• Material: aluminum
• Piston Type: Cast
• Piston compression: standard
• Diameter Ø (mm): 67.97
• Letter oversize: D
• Oversize: +0.03
• Stroke: 2T
• Specificity: Domed piston / Reed cutout / MoS2 coating

Choice for your motorcycle

The model YAMAHA YZ 250 and the year of construction 1988–1998 are decisive for the vehicle assignment. The diameter of 67.97 mm, the letter Oversize D and the Oversize +0.03 version support the comparison with the existing engine data and the required piston size.

Technical execution

The design is a curved piston with a reed cutout. A MoS2 coating is part of the specified specification. Together with the aluminum and the cast design, this results in a clearly described replacement part for the 2T engine of the YAMAHA YZ 250 mentioned.

Before making your selection, please compare the model, year of manufacture, diameter, oversize letters and oversize information with the existing engine. This means that the design can be selected specifically based on the technical characteristics.