Yamaha YZ 250 F (CG 18) [2004] - forged pistons

PROX forged pistons for Yamaha YZ 250 F built in 2004

The PROX forged piston is tailored to the Yamaha YZ 250 F (CG 18) built in 2004. Its forged aluminum design and special alloy are designed to minimize friction and thus support high reliability.

Function and execution

As a forged piston, this component combines a precisely defined piston geometry with a standard compression intended for the engine. The design as a hollow piston with 5 valve pockets takes into account the design features of the associated engine. The piston rings are presented as a set.

Technical data

• Brand: PROX
• Material: aluminum
• Piston Type: Forged
• Piston compression: standard
• Diameter Ø (mm): 76.95
• Letter oversize: A
• Oversize: STD
• Rings Quantity: Set
• Stroke: 4T
• Specificity: hollow piston / 5 valve pockets

Vehicle assignment

The forged piston fits the Yamaha YZ 250 F (CG 18), built in 2004. This assignment supports the selection based on model and year of manufacture.

Selection note

Before ordering, please compare the specified diameter of 76.95 mm and the markings “A” and “STD” with the existing motor. This allows the technical piston data to be specifically compared with the intended emergency vehicle.