Dorman 600-404 Differential Lock Actuator - Rear

Differential Lock Actuator for Jeep 4WD Systems

Dorman 600-404 is a direct replacement differential lock actuator for specific Jeep 4WD applications. It restores proper actuator function with a reverse-engineered design built to match the original equipment part on supported vehicles.

• Direct replacement for the OE differential lock actuator
• Metal housing for durable underbody service
• Pin-style terminal design with 7 terminals
• Motor assembly included
• No wiring harness included
• Cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application

OE-Style Replacement Details

This Dorman 600-404 actuator is built for Jeep Commander and Jeep Grand Cherokee rear differential applications using the Chrysler Axle 8.25 in. / 213 mm setup. It is a practical replacement for a failed factory actuator when the original unit no longer engages or disengages the differential lock correctly. The metal housing and pin terminal layout support a direct-fit service approach on the listed vehicles.

Common Problems This Part Can Address

• Rear differential lock not engaging
• Rear differential lock staying engaged
• Intermittent 4WD actuator operation
• Faulty actuator motor response
• Warning lights or driveline symptoms tied to actuator failure

Installation Notes and Fitment

Fits 2006-2010 Jeep Commander, N/A. Fits 2006-2010 Jeep Commander, Rear, Chrysler Axle 8.25 In./ 213 mm. Fits 2005-2010 Jeep Grand Cherokee, N/A. Fits 2005-2010 Jeep Grand Cherokee, Rear, Chrysler Axle 8.25 In./ 213 mm. Confirm axle configuration and terminal match before installation. This part number, Dorman 600-404, is intended for the listed rear differential applications and does not include a wiring harness.

Quality Assurance

Dorman reverse engineers this actuator to restore original functionality on specific vehicle applications. The part is built as a direct OE-style replacement for supported Jeep Commander and Jeep Grand Cherokee driveline systems.