Jeep Wrangler JL Axle Locker Actuator 68391561AA

This is a replacement axle locker actuator for the 2018-2021 Jeep Wrangler JL with the factory electric lockers, covering the 2.0L turbo four, the 3.6L V6 and the 2020-2021 3.0L EcoDiesel. It replaces Mopar 68391561AA and crosses to 68391560AA, 68463607AA, 68463608AA and 68549223AA. The unit is an aluminum housing with a sealed motor on top and the shift fork on the bottom, and it ships with a spacer and four mounting bolts.

The actuator bolts to the axle housing and its fork slides the locking collar inside the differential when you press the axle lock switch. When it fails, the usual signs are an axle lock light that flashes and never goes solid, a locker that will not engage or will not release, a clicking or buzzing from the axle when the switch is pressed, and locker or actuator circuit codes on a scan tool. Before replacing it, check the connector for water and bent pins and confirm the transfer case is in 4LO, since the lockers are designed to engage only in low range.

To install, unplug the connector, remove the mounting bolts and pull the old actuator straight out so the fork clears the collar. Some gear oil will come out, so have a drain pan ready. Clean the mating surface, fit the spacer, and slide the new fork into the collar groove as you seat the actuator. Torque the bolts evenly, plug it in, top up the axle with the correct gear oil, and cycle the lockers in 4LO with the wheels slightly turning to confirm the light goes solid and releases. Confirm the part number on your old actuator before ordering.