Yamaha YZ 250 (CG 17) [2004] - cast pistons

PROX cast piston for Yamaha YZ 250 (CG 17), built in 2004

The PROX cast piston is designed for replacement on the 2T engine of the Yamaha YZ 250 (CG 17), built in 2004. Its design combines a special alloy with a manufacturing process used by most manufacturers. This makes the piston suitable as a replacement solution with equivalent original equipment quality.

Function and execution

The patented surface treatment supports reduced friction in the cylinder. The piston skirt has a MoS2 coating. The domed piston also features a fin cutout and a suction hole.

Technical data

• Material: aluminum
• Piston Type: Cast
• Piston compression: standard
• Diameter Ø: 66.35 mm
• Letter oversize: A
• Oversize: STD
• Stroke: 2T
• Specificity: Domed piston / fin cutout / suction hole / MoS2 skirt coating

Vehicle assignment

Suitable for Yamaha YZ 250 (CG 17), built in 2004.

Factual note

The selection is made based on the specified vehicle assignment and the technical piston data. Diameter, piston type, compression and the A and STD markings should be compared to the existing engine structure before ordering.