Rear Differential Lock Actuator For Toyota Land Cruiser Lexus LX450 4145060042

Rear Differential Lock Actuator for Toyota Land Cruiser and Lexus LX450

This rear differential lock actuator engages and disengages the factory rear locker, and it cross-references OEM part number 4145060042.

Overview

This rear differential lock actuator is a replacement unit that drives the locking mechanism inside the rear differential so the locker engages when you press the dash switch. The differential lock actuator restores positive locking for traction on loose or uneven ground. It is intended for Land Cruiser and LX450 owners replacing an actuator that no longer engages the rear locker.

Built For Performance

• OEM cross-reference 4145060042 for direct-fit replacement
• Sealed housing built to keep out water, mud, and road debris
• Motor and gear drive sized to move the locking collar through its full travel
• Mounting pattern and connector matched to the factory rear differential
• Designed for repeated lock and unlock cycles on and off pavement

Fits These Machines

• for Toyota Land Cruiser with factory rear differential lock
• for Lexus LX450 with factory rear differential lock

On-The-Job Use

• Restoring rear locker engagement when the dash light stays off
• Replacing an actuator that clicks but will not move the locking collar
• Repairing a locker that has stopped engaging after water crossings
• Getting a truck ready for trails that need both axles locked

Specs At A Glance

Good To Know

Q: Does this actuator work if my truck did not come with a factory rear locker? A: No, it is a replacement for vehicles that already have the factory rear differential lock system. A truck without the factory locker needs the complete differential assembly and wiring to add one.

Q: Why does a bad actuator leave the locker stuck? A: When the actuator fails mid-travel, the locking collar can stay engaged or refuse to move at all. Replacing the actuator restores normal lock and unlock operation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.