Yamaha YZ 250 F (CG 34) [2016] - forged pistons

PROX forged pistons for Yamaha YZ 250 F

The PROX forged piston is designed for the Yamaha YZ 250 F (CG 34) built in 2016. Its aluminum construction and forged design combine verified PROX quality with a design that reduces friction and is designed for reliable operation.

Function and execution

The flat crown with a raised top is designed with 4 valve pockets. The piston is intended for a 4T engine and has standard piston compression. The specified compression is 13.5/1. As a spare part, the piston is based on OEM quality.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Diameter Ø: 76.97 mm
• Letter oversize: C
• Oversize: +0.02
• Piston compression: standard
• Compression: 13.5/1
• Piston rings: set
• Engine version: 4T
• Specificity: Flat crown with raised top / 4 valve pockets

Vehicle assignment

The forged piston fits the Yamaha YZ 250 F (CG 34), built in 2016. The selection should be made based on the full vehicle name and year of manufacture.

Note on selection

The diameter of 76.97 mm, the oversize letter C and the oversize dimension +0.02 are particularly relevant for the assignment. These technical features support the targeted selection of the right PROX piston for the Yamaha engine mentioned.