Shop OEM GENERAL MOTORS Part # 25992794 (25847313). Latch. Actuator. Lock. Door. (Rear, Upper). EXT CAB. Silverado, Sierra; w/Extended Cab; Upper; Left. Door Lock Actuator - Repair or

Exc.Comfort Package. Incl.Latch. Mechanism to secure Door to chassis. Motor to Lock and unLock car Door. Assembly - Side. Motor.

Door Latch AssemblyDoor Lock Actuator Motor

Fits Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Silverado

EXT CAB. Silverado, Sierra; w/Extended Cab; Upper; Left.
Door Lock Actuator - Repair or Replace
Your may need a new door lock actuator if your keyless entry doesn't work or your lock button doesn't lock the doors.