Jeep Grand Cherokee Rear ELSD Locking Motor 68084266AA

This is the electric actuator motor that bolts to the rear electronic limited-slip differential (ELSD) on 2011-2016 Jeep Grand Cherokee WK2 models equipped with Quadra-Drive II. It replaces Mopar 68084266AA, 68084266AB and 68084266AC. The motor turns a splined output shaft that loads the clutch pack inside the rear differential, so the module can lock the rear axle when a wheel starts to slip.

When the motor fails, the dash typically shows a Service 4WD or ELSD warning, traction on loose surfaces drops off because the rear no longer biases torque, and you may hear the motor try to cycle at startup without holding. Before buying one, check the connector at the differential for water and green corrosion and confirm the harness has power and ground, since a bad connection sets the same warning as a dead motor.

Replacement is done under the vehicle at the rear differential: unplug the harness, remove the mounting bolts, and pull the motor off its splined shaft. Clean the mounting face, line up the splines on the new motor, torque the bolts evenly, and reconnect the harness. Clear any stored codes and drive the vehicle to let the module re-learn the actuator before judging the repair.