Transmission
Transfer Case Motor
A transfer case motor shifts your four wheel drive system between 2WD, 4 high and 4 low when you press the switch. We list 30 motors from $84 to $711 for 1996-2021 vehicles, from Dorman, A1 Cardone, SKP and TRQ, with fits for the Chevrolet Silverado 1500, Tahoe and Silverado 2500 HD, plus BMW xi models.
Shop transfer case motor by vehicle
Dorman Transfer Case Motor W0133-2109857 for Chevrolet Silverado 1500
Fits 2007 models
Signs of a failing motor
The transfer case motor, also called a shift actuator or encoder motor, turns a shift shaft in the transfer case. Common signs it is failing include 4WD that will not engage or disengage, a flashing 4WD indicator, a grinding or clicking noise when shifting and a service 4WD warning.
Before replacing the motor, check fuses, the selector switch and the wiring connector. Corrosion at the motor plug is a common problem on trucks used in wet or salty conditions.
Matching the motor
Transfer case motors differ by transfer case model, shift type and connector. Some include a mounting bracket or wiring harness, and others are the motor alone. Check the package contents.
Look for the part number on your old motor and compare it with the listing. On some GM trucks, the motor and encoder are one unit. On BMW xi models, the actuator is a different design from GM trucks, so use the fitment table for your model.
Installation notes
Disconnect the battery before unplugging the motor. Note the position of the shift shaft before removing the old unit, and set the new motor to the same position if the instructions require it.
Clean the mounting surface and seal it as specified to keep water out. After installation, test 2WD, 4 high and 4 low with the vehicle stopped and in neutral as your owner's manual describes.
Transfer Case Motor questions
Can a bad transfer case motor cause 4WD to stay engaged?
Yes. If the motor fails while in 4WD, the transfer case may stay locked. Driving on dry pavement in 4WD can damage the drivetrain, so fix it promptly.
Should I check fuses before replacing the motor?
Yes. A blown fuse, failed switch or corroded connector can cause the same symptoms. Check these first, as they cost far less than a new motor.
Do I need to calibrate a new transfer case motor?
Some vehicles need a relearn or calibration with a scan tool after installation. Check the instructions included with the motor or the service information for your truck.