Dorman 600-102XD 4WD actuator for the 1995-2005 Chevrolet Blazer and other vehicles uses vacuum to operate the front differential in the 4WD system. This Dorman 4wd actuator answers 4WD failures where cracks in the original diaphragm leak vacuum.
- Dorman OE FIX series, built to correct a failure point of the original actuator
- Rubber diaphragm reinforced with a mesh layer for three times the durability of the original material
- Redesigned to eliminate common failures of the original part caused by ozone exposure
Quick facts
- Part: Dorman 600-102XD 4WD actuator
- Fits: 1995-2005 Chevrolet Blazer and other vehicles
- Material: Plastic and metal housing
- Condition: New
A 4WD system that stops engaging or disengaging can mean the diaphragm has cracked. If the actuator is the cause, this one replaces it. Before ordering, look over the visible vacuum hoses for cracks or loose ends with the engine off and cool, since a leaking hose can also keep 4WD from working; a shop can test the actuator itself.
Fits
This 4WD actuator is listed for a wide range of Chevrolet, GMC and Pontiac models, led by the 1995-2005 Chevrolet Blazer, the 1992-2005 GMC Jimmy and the 1983-2004 Chevrolet S10. Each takes one actuator at the front differential. It is made to fit and work like the original part. If yours is not one of those, look for your year and model in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Pieces in the listing: 1 actuator
Build and materials
- Type: front differential vacuum actuator
- Housing material: plastic and metal
- Diaphragm: mesh-reinforced rubber
- Condition: New
- Country of origin: China
In the box
One 4WD actuator. Mounting hardware and a wiring harness are not included, so plan on new mounting hardware.
Interchange: TCA-23
25031740 · TCA23T · 7F2002
This part cross-references / interchanges with the following part numbers:
25031740, TCA-23, TCA23T, 7F2002
Frequently Asked Questions
Is this the right S10 4wd actuator for a 1983-2004 Chevrolet S10?
Yes. Dorman 600-102XD is listed for the 1983-2004 Chevrolet S10, with one actuator per truck. For other years and models, look in the "Vehicles it fits" section.
Does a Jimmy 4wd actuator like this one fit the 1992-2005 GMC Jimmy?
Yes. Dorman 600-102XD is listed for the 1992-2005 GMC Jimmy, and each vehicle takes one actuator at the front differential.
Does the Dorman OE FIX 4WD actuator come with mounting hardware?
No. The box holds one vacuum actuator. Mounting hardware and a wiring harness are not included.
What is the diaphragm in this 4WD actuator made of?
The diaphragm is rubber with a mesh layer added, giving three times the durability of the original material. The housing is plastic and metal.
Why do original 4WD actuators fail, and what changed in this one?
On certain vehicles, cracks in the original diaphragm leak vacuum and the 4WD system fails. This actuator was redesigned to eliminate common failures caused by ozone exposure.
