YAMAHA YZ 250 X [2016-2027] - cast pistons

PROX cast piston for YAMAHA YZ 250 X 2016-2027

The PROX cast piston is designed as a replacement component for the YAMAHA YZ 250 X in the entire 2016-2027 model year range. Its standard piston compression supports the selection of a piston according to the production-oriented design of this 2T engine.

Function and execution

The piston is made of aluminum and has a cast design. The patented surface treatment serves to reduce friction in the cylinder. In addition, the piston has a MoS2 skirt coating, which is specified as a specific design feature of the piston design.

Technical data

• Piston Type: Cast
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 66.37 mm
• Letter oversize: C
• Oversize: +0.02
• Stroke: 2T
• Specificity: Domed piston, fin cutout, suction hole and MoS2 skirt coating

Vehicle assignment

The PROX cast piston fits the YAMAHA YZ 250 X, built between 2016 and 2027. The selection is made based on the specified diameter of 66.37 mm, the oversize +0.02 and the marking C.

Selection note

Before ordering, the technical dimensions and piston marking should be compared with the intended application. The cast PROX version with standard piston compression can be specifically selected for the 2T engine mentioned.