[Part Number of Tailgate Latch Lock Actuator] 9L8Z-7843150-B, 8L8Z-7843150-B, 9L8Z-7843150-A, 937-663. Work with 9L8Z-7843150-B Tailgate Latch Assembly. Solve problem like the lock-unlock button on door nor the key fob would not lock or unlock the liftgate.