YAMAHA YZ 250 F [2022-2026] - forged pistons

PROX forged pistons for YAMAHA YZ 250 F 2022-2026

The PROX forged piston is intended for the YAMAHA YZ 250 F in the full year range from 2022 to 2026. It is designed as a replacement piston in OEM equivalent quality and has standard compression.

Structure and function

The piston is made of aluminum and is manufactured as a forged version. The specific aluminum alloy used is designed to reduce friction and support reliability. The flat crown with raised top part and four valve pockets describe the piston shape and make selection easier based on the existing engine configuration.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 76.95 mm
• Letter oversize: A
• Oversize: STD
• Piston rings: set
• Stroke: 4T
• Specificity: Flat crown with raised top / 4 valve pockets

Vehicle assignment

The PROX forged piston fits the YAMAHA YZ 250 F built in 2022, 2023, 2024, 2025 and 2026. When making the selection, the diameter of 76.95 mm, the marking A and the specified STD version must be taken into account in particular.

Selection guide

Before ordering, check the technical characteristics of the existing piston and compare them with the diameter, oversize letter, compression and piston shape. This means that the version can be selected specifically for the YAMAHA YZ 250 F in the specified year of manufacture.