YAMAHA YZ 250 FX [2019-2024] - Forged pistons

PROX forged pistons for YAMAHA YZ 250 FX 2019-2024

The PROX forged piston is intended for the YAMAHA YZ 250 FX from the entire 2019-2024 model year range. Its forged aluminum design combines a precisely tailored selection based on technical characteristics with OEM-equivalent quality.

Function and execution

The aluminum alloy used is designed to reduce friction and support piston reliability. Piston compression is standard. For the engine configuration, the piston is designed as a 4T version.

Technical data

• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 76.97 mm
• Letter oversize: C
• Oversize: +0.02
• Design: Flat crown with raised top / 4 valve pockets

Vehicle assignment

The forged piston fits the YAMAHA YZ 250 FX from the years 2019, 2020, 2021, 2022, 2023 and 2024. When selecting, the diameter of 76.97 mm, the oversize letter C and the version with +0.02 must be taken into account.

The technical features are used for targeted assignment within this vehicle year of manufacture. Before ordering, the existing engine data should be compared with the specified piston dimensions and the standard compression.