YAMAHA YZ 250 [1988-1991] - cast pistons

VERTEX cast pistons for YAMAHA YZ 250 from 1988 to 1991

The cast VERTEX cast piston is designed for the YAMAHA YZ 250 in the entire 1988-1991 model year range. Its technical dimensions support a targeted selection to match the specified engine variant.

Design and technical features

• Material: aluminum
• Piston Type: Cast
• Piston compression: standard
• Piston diameter: 67.94 mm
• Bore diameter: 68.00 mm
• Letter oversize: A
• Oversize: STD
• Engine type: 2T

The diameter of 67.94 mm and the specified bore diameter of 68.00 mm serve as important comparison values when selecting the right piston. The markings “A” and “STD” are part of the technical design and should be taken into account when comparing with the existing engine.

Vehicle assignment

The piston fits the YAMAHA YZ 250, built in 1988, 1989, 1990 and 1991. The vehicle assignment refers to this model and year of manufacture.

Selection guide

Before ordering, the piston diameter, bore diameter, piston compression and the markings of the existing version should be compared with the data mentioned. In this way, the technical assignment within the YAMAHA YZ 250 from 1988-1991 can be properly checked.