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Dorman 600-399 Differential Lock Actuator - Front
| Brand | Dorman 600-399 |
|---|---|
| Position | Front |
| Actuator Design | Electronic |
| Connector/Terminal Configuration | Blade |
| Material | Plastic |
| Package Contents | Actuator |
| Fits | Ram and Dodge · 19 vehicles |
OE direct replacement. Reverse engineered to restore proper differential lock function.
Electronic actuator. Blade connector and plastic construction.
Differential lock actuator. Restores proper locking function with a direct-fit design.
Cross-references Standard Ignition TCA-81, 1S12657 and 52114387AA for the same application. See all 3.
Differential Lock Actuator for Ram Trucks
This Dorman differential lock actuator is a direct replacement for the original equipment unit on select Ram and Dodge Ram front axle applications. Built with an electronic actuator design and a blade-style connector, it is engineered to restore differential lock operation on the vehicles listed below.
- Direct replacement for the OE differential lock actuator
- Electronic actuator design for front differential lock control
- Plastic housing construction
- Blade connector/terminal configuration
- Fits 2006-2010 Dodge Ram 1500, front
- Fits 2011-2021 Ram 1500, front
- Fits 2019-2021 Ram 1500 Classic, front
Detailed Product Overview
Dorman Part Number 600-399 is reverse engineered to match the original actuator used on specific front differential lock systems. It is intended for Ram 1500, Ram 1500 Classic, and Dodge Ram 1500 applications where the factory actuator has failed or no longer operates correctly. If you are searching for a front differential lock actuator for a 2011-2021 Ram 1500 or a 2006-2010 Dodge Ram 1500, this replacement is built for those exact vehicle ranges. This part cross-references Standard Ignition TCA-81 for the same application.
Common Problems This Part Can Address
- Front differential lock not engaging
- Intermittent or inoperative axle lock function
- Faulty actuator response from the electronic control system
- Replacement need after connector or internal actuator wear
Installation Notes and Tips
Verify the vehicle’s front axle configuration and connector style before installation. Compare the original actuator to Dorman 600-399 to confirm blade terminal layout and mounting match the OE unit. After installation, test differential lock operation to ensure the system engages and releases properly.
Quality Assurance
Dorman reverse engineers this actuator to restore proper OE-style functionality on specific applications. Part number 600-399 is built as a direct replacement for the factory unit and is backed by Dorman’s product engineering standards.
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2021 | Ram | 1500 | 4WD | Front | — |
| 2021 | Ram | 1500 Classic | 4WD | Front | — |
| 2020 | Ram | 1500 | 4WD | Front | — |
| 2020 | Ram | 1500 Classic | 4WD | Front | — |
| 2019 | Ram | 1500 | 4WD | Front | — |
| 2019 | Ram | 1500 Classic | 4WD | Front | — |
| 2018 | Ram | 1500 | 4WD | Front | — |
| 2017 | Ram | 1500 | 4WD | Front | — |
| 2016 | Ram | 1500 | 4WD | Front | — |
| 2015 | Ram | 1500 | 4WD | Front | — |
| 2014 | Ram | 1500 | 4WD | Front | — |
| 2013 | Ram | 1500 | 4WD | Front | — |
| 2012 | Ram | 1500 | 4WD | Front | — |
| 2011 | Ram | 1500 | 4WD | Front | — |
| 2010 | Dodge | Ram 1500 | 4WD | Front | — |
| 2009 | Dodge | Ram 1500 | 4WD | Front | — |
| 2008 | Dodge | Ram 1500 | 4WD | Front | — |
| 2007 | Dodge | Ram 1500 | 4WD | Front | — |
| 2006 | Dodge | Ram 1500 | 4WD | Front | — |
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