Dorman 600-490 4WD actuator for the 1988-1996 Chevrolet K1500 and other vehicles replaces the original thermal actuator with an electric one. The original thermal actuator's wax ages and can leave it sluggish; this Dorman 4WD actuator kit adds a faster-acting electric one.
- Kit contains the 600-101 4WD electric actuator and the 600-600 4WD actuator harness
- Four wheel on demand conversion of a thermally activated differential to an electric one
- 98.5-inch wiring harness with pin terminals and a rectangular plastic connector
Quick facts
- Part: Dorman 600-490 4WD actuator
- Fits: 1988-1996 Chevrolet K1500 and other vehicles
- Condition: New
A 4WD system that responds slowly or will not engage can mean the thermal actuator has failed. A damaged wire, a failed switch or a problem inside the transfer case can also be behind those signs, so find the cause before you buy.
Fits
The 1988-1996 Chevrolet K1500, the 1995-1996 Chevrolet Tahoe and the 1992-1996 GMC Yukon are among the trucks this 4WD actuator fits, along with more Chevrolet and GMC models.
Specifications
Fit and size
- Wiring harness length: 98.5 in
- Terminal quantity: 3
- Quantity per vehicle: 1
- Kit pieces: 1 actuator, 1 wiring harness
Build and materials
- Terminal type: pin
- Terminal gender: male and female
- Connector shape: rectangle
- Connector housing material: plastic
- Four wheel on demand conversion: yes
- Condition: New
- Country of origin: Republic of Korea
In the box
This listing holds one kit with one 4WD actuator and one wiring harness, and the vehicle takes one. Mounting hardware is not included; plan on new fasteners, since the old ones may not be reusable.
Interchange: 26013495 · 26060073 · 88959465
This part cross-references / interchanges with the following part numbers:
26013495, 26060073, 88959465
Frequently Asked Questions
Is this the right 4WD actuator for a 1995-1996 Chevy Tahoe?
Yes. Dorman 600-490 fits the 1995-1996 Chevrolet Tahoe. If your truck is a different model, look up its year in the "Vehicles it fits" section before ordering.
Does this 4WD actuator work on a 1992-1996 GMC Yukon?
Yes. Dorman 600-490 fits the 1992-1996 GMC Yukon, and the vehicle takes one kit.
Does the Dorman 600-490 kit include the wiring harness?
Yes. It comes with one 4WD actuator and one wiring harness. Mounting hardware is not included.
How long is the wiring harness in this 4WD actuator kit?
The harness is 98.5 inches long. It has three terminals and a rectangular plastic connector.
Is the Dorman 600-490 a four wheel on demand conversion?
Yes. It is listed as a four wheel on demand conversion that updates a thermally activated differential to an electric one.
