Harmonic Balancer - MINI Cooper / Base / S / JCW / R55-R61 | 11237638551-FEB

The two most common designs are vibration-damping pulleys and decoupled pulleys. It is important that the internal structure of the pulley is designed in accordance with the vibrations generated by the motor - this is the only way to compensate these and prevent the transmission of vibrations to the belt drive.

febi only supplies pulleys with the same technology of the vehicle manufacturer and the correct internal structure. Our quality management tests the pulleys offered for various requirements and loads, e.g. fitting accuracy, dimensional accuracy, material quality, and tensile strength.



Part #'s


11-23-7-638-551 / 11 23 7 638 551 / 11237638551

11-23-7-622-909 / 11 23 7 622 909 / 11237622909

⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov