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Dorman 600-421 Differential Lock Actuator - Front
| Brand | Dorman 600-421 |
|---|---|
| Position | Front |
| Actuator Design | Electronic |
| Color | Black |
| Color | Gray |
| Connector/Terminal Configuration | Blade |
| Grade Type | Standard |
| Material | Aluminum |
| Material | Carbon Steel |
| Package Contents | 1 Differential Lock Actuator |
| Terminal Quantity | 6 |
| Terminal Type | Pin |
| Fits | Toyota · 14 vehicles |
OE direct replacement. Reverse engineered to restore proper differential lock function.
Electronic actuator. Pin-and-blade design with a standard-grade build.
Durable materials. Made with aluminum and carbon steel components.
Cross-references 4145060081 for the same application. See all 1.
Differential Lock Actuator for Toyota Land Cruiser
This Dorman differential lock actuator is a direct replacement for the original equipment unit on specific Toyota Land Cruiser applications. Built with an electronic actuator design and OE-style terminal configuration, it helps restore proper differential lock operation on the front axle.
- Direct replacement differential lock actuator for front applications
- Electronic actuator design for controlled lock engagement
- Aluminum and carbon steel construction
- Black and gray finish
- 6-terminal blade connector with pin terminals
- Standard grade replacement part
- OE-style fitment for select Toyota Land Cruiser models
Detailed Product Overview
Dorman 600-421 is engineered as a replacement differential lock actuator for select 2007-2011 and 2013-2021 Toyota Land Cruiser front applications. It is reverse engineered to restore the function of the original equipment part, making it a practical choice when the factory actuator no longer engages or disengages the differential lock as intended. The unit uses an electronic actuator design with a 6-terminal blade connector and pin terminals for the specified vehicle applications. This part cross-references OE number 4145060081 for the same application. Dorman 600-421 supports front differential lock service on Toyota Land Cruiser models where the original actuator has failed or become unreliable.
What This Part Helps Resolve
- Front differential lock not engaging
- Front differential lock staying engaged
- Intermittent actuator response
- Electrical connection issues at the actuator
- Restoring factory-style differential lock operation
Installation Notes and Tips
Verify the vehicle year, model, and front axle application before installation. Confirm the connector style, terminal count, and actuator design match the original unit on the vehicle. For Toyota Land Cruiser differential lock actuator replacement, compare the OE part number and mounting details to ensure correct fitment.
Quality Assurance
Dorman manufactures this replacement actuator as a reverse-engineered OE-style part for specific applications. It is built to restore proper functionality on the listed Toyota Land Cruiser front differential lock systems.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2021 | Toyota | Land Cruiser | Front | — |
| 2020 | Toyota | Land Cruiser | Front | — |
| 2019 | Toyota | Land Cruiser | Front | — |
| 2018 | Toyota | Land Cruiser | Front | — |
| 2017 | Toyota | Land Cruiser | Front | — |
| 2016 | Toyota | Land Cruiser | Front | — |
| 2015 | Toyota | Land Cruiser | Front | — |
| 2014 | Toyota | Land Cruiser | Front | — |
| 2013 | Toyota | Land Cruiser | Front | — |
| 2011 | Toyota | Land Cruiser | Front | — |
| 2010 | Toyota | Land Cruiser | Front | — |
| 2009 | Toyota | Land Cruiser | Front | — |
| 2008 | Toyota | Land Cruiser | Front | — |
| 2007 | Toyota | Land Cruiser | Front | — |
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