GM Genuine Parts Door Lock Actuator Kits are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These kits come with the components to replace your door lock actuator. The door lock actuator is an electrically operated linear motor that operates the door lock mechanism within the vehicle doors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).