Chevy Tahoe Transfer Case Shift Motor Dorman 600-902

This is the electric shift motor that bolts to the side of the transfer case on 1996-2000 GM full-size 4WD trucks and SUVs with push-button 4WD. When the driver presses 4HI or 4LO, the module powers this motor to rotate the shift shaft into range. It is a new unit, not a rebuilt core, with a factory-style connector and a sealed plug.

Fits Chevrolet Tahoe 1996-2000, K1500 and K1500 Suburban 1996-1999, K2500 1996-2000 and K2500 Suburban 1996-1999; the matching GMC Yukon, K1500, K2500 and Suburban years; Cadillac Escalade 1999-2000; and Dodge Dakota and Durango 2001-2002.

Typical failure symptoms: 4WD lights flash and never go solid, Service 4WD light on, the truck stays in 2HI no matter what button you press, or it gets stuck in 4HI. Water getting past a failed plug seal and shorting the windings is a common cause on these older trucks.

Before condemning the motor, check the connector for water and green corrosion, confirm the fuse is good, and check resistance across the motor terminals. An open or shorted winding points at the motor; a good motor with no power points at the harness, switch or transfer case control module. Match the part number on your old motor or the transfer case ID tag before ordering, since these years used more than one case and motor.

On the bench: disconnect the battery, unplug the motor connector, remove the mounting bolts and pull the motor straight off the transfer case shift shaft. Before installing the new motor, note the position of the shift shaft and make sure the socket on the new motor lines up with the shaft flats; do not force it on. Bolt it down, plug it in, reconnect the battery and cycle through 2HI, 4HI, Neutral and 4LO with the engine running to confirm every range light goes solid.