Buy 2018 Mazda 6 Touring Sedan Lock. Door. (Right). CX-9; Right; w/o Alarm. CX-9; Right; w/o Anti-Theft Actuator, Alarm, Anti - OEM Mazda Part # TD1172310D (TD11-72-310C, TD11-72-310D, TD1172310C)

Exc.Anti-Theft System. Includes Door Lock. Includes: Door Lock. Mechanism to secure Door to chassis. Motor to Lock and unLock car Door. Actuator Motor. DO. Latch.

Door Latch AssemblyDoor Lock Actuator Motor

Fits CX-9

CX-9; Right; w/o Alarm. CX-9; Right; w/o Anti-Theft Alarm. W/o anti theft.
Door Lock Actuator - Repair or Replace
Your 2018 Mazda 6 may need a new door lock actuator if your keyless entry doesn't work or your lock button doesn't lock the doors.