Dorman OE Solutions 4WD Front Differential Actuator for Chevrolet GMC Pontiac 600-102XD

4WD front differential actuator for Chevrolet GMC and Pontiac trucks used to replace cracked factory actuators causing vacuum leaks and four wheel drive failure.

Built to meet the manufacturer's design intent for reliable service. This Dorman OE FIX unit features a mesh-reinforced rubber diaphragm engineered to provide three times the durability of the original design, addressing common failure points found in stock components.

Key Features

• Mesh-reinforced rubber diaphragm resists cracking and vacuum leaks
• Direct replacement for failed original equipment actuators
• Compatible with select Chevrolet GMC and Pontiac 4WD models
• Backed by Dorman product experts and over a century of automotive experience
• Replaces General Motors part number 25031740

Benefits

• Restores proper four wheel drive engagement and functionality
• Eliminates vacuum leaks caused by deteriorated factory diaphragms
• Enhanced material construction reduces risk of repeat repairs
• Direct fit design ensures smoother installation without modification
• Provides long-lasting performance for daily driving demands

Application

Ideal for owners of older Chevrolet GMC and Pontiac 4WD vehicles experiencing issues with front differential engagement or vacuum system failures. This part serves as a durable upgrade for trucks and SUVs where the original actuator diaphragm has become brittle or cracked over time.

Fitment Notes

• Fits select Chevrolet models from 1983 to 2005
• Fits select GMC models from 1983 to 2005
• Fits select Pontiac models from 1988 to 1990
• Verify specific vehicle compatibility before purchase

Why Choose Dorman - OE Solutions?

• Dorman parts are engineered as direct-fit replacements matching OE form fit and function
• Strong focus on fit durability and dependable performance restores vehicle confidence
• Validated through testing to stand up to daily driving demands
• Proven aftermarket solutions designed to keep vehicles operating correctly

What's in the Box

• 1 PC 4WD Front Differential Actuator

Item Dimensions

• 5.0in x 4.6in x 4.0in
• Weight: 0.4lbs