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  2. Auto Parts
  3. Driveline and Axles
  4. Switches
  5. 4WD Actuator
  6. Dorman 600-490

Dorman 600-490 4WD Actuator

Dorman 600-490 4WD Actuator Image 1
Dorman 600-490 4WD Actuator Image 2
Dorman 600-490 4WD Actuator Image 3
Dorman 600-490 4WD Actuator Image 4
Dorman 600-490 4WD Actuator Image 5
Dorman 600-490 4WD Actuator

Dorman
Brand:Dorman
Part Number: 600-490
UPC: 00019495548270
Weight: 1.41 lbs
Condition:New



On Sale:

$120.46

Availability:
2 in Stock
Warehouse: US-1
Quantity:

Product Information

Description:

Get the Dorman 600-490 4WD Actuator for your vehicle. Buy now and secure your purchase online!

The 4WD systems on many older Chevrolet and GMC trucks utilize a thermal differential actuator which is prone to sluggishness and failure when the wax that drives the actuator piston ages and deteriorates, ultimately disabling the 4WD system. This convenient 4WD differential actuator upgrade kit contains the key components required to easily replace the original equipment thermal actuator with a faster-acting electric actuator designed to provide longer, more reliable service. The kit contains our part number 600-101 4WD electric actuator and our part number 600-600 4WD actuator harness, both of which are carefully engineered to precise specifications to update an old technology thermally-activated differential to a more efficient electric differential on specified GM vehicle makes, models and years.

Features and Benefits:

  • Complete solution - this kit includes a 4WD electric actuator and 4WD actuator harness, the key components required to update a 4WD differential
  • Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
  • Updated technology - effective replacement for an old technology original equipment thermal differential actuator that is sluggish or has failed, disabling the 4WD system
  • Upgraded repair - this 4WD differential actuator upgrade kit is designed to update a thermally activated differential to a more efficient electric differential on specified Chevrolet and GMC trucks

Specifications:

Connector Gender:
Male Female
Connector Shape:
Rectangle
Four Wheel on Demand Conversion:
Yes
Housing Material:
Plastic
Mounting Hardware Included:
No
Package Contents:
1 4WD Actuator
Package Contents:
1 Wiring Harness
Terminal Gender:
Male Female
Terminal Quantity:
3
Terminal Type:
Pin
Wiring Harness Included:
Yes
Wiring Harness Length:
98.5 in.
General Motors #:
26013495
General Motors #:
26060073
General Motors #:
88959465
Country of Origin:
KR

Select a vehicle to narrow Dorman 600-490 4WD Actuator fitment info!

Last Updated: 09/30/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1994

 

1994

 
Chevrolet Blazer

6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet Blazer



6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1994

 

1993

 

1992

 

1994

 

1993

 

1992

 
Chevrolet Blazer

5.7L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet Blazer



5.7L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
Chevrolet K1500

4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

Chevrolet K1500



4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Chevrolet K1500

6.5L V8 Diesel OHV,
6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K1500



6.5L V8 Diesel OHV,
6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
Chevrolet K1500

4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K1500



4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
Chevrolet K1500

6.2L V8 Diesel OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K1500



6.2L V8 Diesel OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
Chevrolet K1500 Suburban

5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

Chevrolet K1500 Suburban



5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Chevrolet K1500 Suburban

6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K1500 Suburban



6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1995

 

1994

 

1993

 

1992

 
Chevrolet K1500 Suburban

5.7L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K1500 Suburban



5.7L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
Chevrolet K2500

5.0L V8 Gas OHV,
5.7L V8 CNG OHV,
5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

Chevrolet K2500



5.0L V8 Gas OHV,
5.7L V8 CNG OHV,
5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Chevrolet K2500

6.5L V8 Diesel OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K2500



6.5L V8 Diesel OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1995

 

1994

 

1993

 

1992

 
Chevrolet K2500

6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K2500



6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1995

 

1994

 

1993

 

1992

 

1991

 
Chevrolet K2500

7.4L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K2500



7.4L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
Chevrolet K2500

4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K2500



4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
Chevrolet K2500

6.2L V8 Diesel OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K2500



6.2L V8 Diesel OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
Chevrolet K2500 Suburban

5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

Chevrolet K2500 Suburban



5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Chevrolet K2500 Suburban

6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K2500 Suburban



6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1995

 

1994

 

1993

 

1992

 
Chevrolet K2500 Suburban

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K2500 Suburban



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
Chevrolet K3500

5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

Chevrolet K3500



5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1995

 

1994

 

1993

 

1992

 
Chevrolet K3500

6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K3500



6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
Chevrolet K3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
Chevrolet K3500

6.2L V8 Diesel OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet K3500



6.2L V8 Diesel OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
Chevrolet Tahoe

5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

Chevrolet Tahoe



5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1995

 
Chevrolet Tahoe

5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

Chevrolet Tahoe



5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
GMC K1500

4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

GMC K1500



4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1995

 

1994

 
GMC K1500

6.5L V8 Diesel OHV,
6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K1500



6.5L V8 Diesel OHV,
6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K1500

4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K1500



4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K1500

6.2L V8 Diesel OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K1500



6.2L V8 Diesel OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
GMC K1500 Suburban

5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

GMC K1500 Suburban



5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1995

 
GMC K1500 Suburban

6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K1500 Suburban



6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1995

 

1994

 

1993

 

1992

 
GMC K1500 Suburban

5.7L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K1500 Suburban



5.7L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
GMC K2500

5.7L V8 CNG OHV,
5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

GMC K2500



5.7L V8 CNG OHV,
5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1995

 

1994

 
GMC K2500

6.5L V8 Diesel OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K2500



6.5L V8 Diesel OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1995

 

1994

 

1993

 

1992

 
GMC K2500

6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K2500



6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1995

 

1994

 

1993

 

1992

 

1991

 
GMC K2500

7.4L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K2500



7.4L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K2500



4.3L V6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

6.2L V8 Diesel OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K2500



6.2L V8 Diesel OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
GMC K2500 Suburban

5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

GMC K2500 Suburban



5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1995

 

1994

 
GMC K2500 Suburban

6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K2500 Suburban



6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1995

 

1994

 

1993

 

1992

 
GMC K2500 Suburban

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K2500 Suburban



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
GMC K3500

5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

GMC K3500



5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo,
7.4L V8 Gas OHV Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1995

 

1994

 

1993

 

1992

 
GMC K3500

6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K3500



6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K3500

6.2L V8 Diesel OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC K3500



6.2L V8 Diesel OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1996

 

1996

 
GMC Yukon

5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator
 

GMC Yukon



5.7L V8 Gas OHV,
6.5L V8 Diesel OHV Turbo Includes Wiring Harness
To 12/95
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1995

 

1994

 
GMC Yukon

6.5L V8 Diesel OHV Turbo
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC Yukon



6.5L V8 Diesel OHV Turbo Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1995

 

1994

 

1993

 

1992

 
GMC Yukon

5.7L V8 Gas OHV
1
 
Includes Wiring Harness
Upgrade To Electric Type Actuator
 

GMC Yukon



5.7L V8 Gas OHV Includes Wiring Harness
Upgrade To Electric Type Actuator

1 Per Vehicle