Shop 1989 Buick Century Lock. Latch. Actuator. (Rear). SRX; Right; All. SRX; Right; w/o Theft Deterrent Right, Door, Motor, Doesn - OEM Buick Part # 25876521 (25843168)

Incl.Latch. Mechanism to secure door to chassis. Motor to Lock and unLock car door. Assembly - Side. Controller. Door Motor. Dovetail.

Door Latch AssemblyDoor Lock Actuator Motor

Fits SRX

SRX; Right; All. SRX; Right; w/o Theft Deterrent.
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.