An assembly for coupling the rotor of a vehicle pedal assembly to the shaft of a vehicle pedal assembly. The rotor includes a cap which is fitted over a distal end of the shaft. The cap and the distal end of the shaft define a through aperture and an interior recess respectively. A coupling pin extends through the aperture in the cap of the rotor and into the recess in the shaft and includes a knurled outer surface which allows the pin to be interference fitted to the rotor and the shaft for securely coupling the rotor to the shaft.