Cardone Select 82-4577 New Window Lift Motor Improved over original performance, all gears are designed with a stronger, less brittle material than O.E. to prevent premature wear, striping and breakage, thus extending the performance life 100% load testing ensures guaranteed performance every time Every motor is assembled with the precise amount of lubricant to ensure quiet operation and long life Brushes are precisely designed to ensure armature and contacts are properly matched Units are designed with extra torque motors to prevent premature failure resulting from improperly lubricated window lift regulators