Yamaha YZ 250 (CG 12) [2002] - cast pistons

PROX cast piston for Yamaha YZ 250 (CG 12) built in 2002

The PROX cast piston is designed as a replacement part for the Yamaha YZ 250 (CG 12) built in 2002. Its dimensions and design are tailored to this specific vehicle and make it a suitable choice for engine repairs.

Function and execution

The piston is made of aluminum and is a cast piston with standard compression. The diameter is exactly 66.37 mm. The oversize is given as +0.02 and is denoted by the letter C. The version is intended for a 2T engine.

The piston skirt has a MoS2 coating. Together with the patented surface treatment, this design helps reduce friction in the cylinder. The curved piston, the fin cutout and the intake hole are taken into account as specific design features.

Technical data

• Brand: PROX
• Component: cast piston
• Material: aluminum
• Piston Type: Cast
• Piston compression: standard
• Diameter: Ø 66.37 mm
• Letter oversize: C
• Oversize: +0.02
• Version: 2T
• Specificity: domed piston, fin cutout, suction hole, MoS2 skirt coating

Vehicle assignment

Suitable for the Yamaha YZ 250 (CG 12), built in 2002. The piston is intended for replacement in equivalent original manufacturer quality.