ACDelco Premium Aftermarket Professional Power Window Motor Gear Kits are designed to replace old worn out gears with new ones. These kits come with all the components to help repair the gears in your power window motor without having to replace the whole motor. They have a hardened steel gear and a steel cover plate.When it comes to replacing your window regulator, ACDelco offers a full line of Professional Premium Aftermarket Window Lift products. In addition we also offer door lock actuators, power window motors, power window switches to make part replacement simple and precise. ACDelco Professional Window Regulators fit GM vehicles as well as a wide range of other vehicles on the road today.