Back Door Lower Lock Assembly

Why Is This Part Important

The lower back door lock assembly secures the rear tailgate or trunk, ensuring your vehicle’s cargo area is safely closed. It prevents accidental opening, protects from theft, and keeps dust, water, and exhaust fumes out of the cabin.

How Does It Work

This assembly uses a robust mechanical latch with an internal spring and actuator mechanism. When you shut the back door, the latch catches onto a striker, holding the door tightly in place. Unlocking it (manually or with keyless entry) releases the latch, allowing the door to open smoothly.

What Happens If It Breaks

If the back door lock fails, the tailgate may not latch correctly or could pop open while driving—posing a safety risk. It can also lead to water leaks, rattling noises, and loss of cargo security. Early replacement prevents further rear hatch damage and costly repairs.

Compatible models:

• Land Cruiser 100