4WD Actuator for Chevy GMC Blazer Yukon Tahoe K1500 K2500 K3500 1988-96 600-490

4WD Actuator for Chevy GMC Blazer Yukon Tahoe K1500 K2500 K3500

This 4WD actuator engages and disengages the front axle on select Chevy and GMC trucks, cross-referencing part number 600-490 for a direct-fit replacement.

Overview

The 4WD actuator is a front axle engagement component for 1988 through 1996 Chevy and GMC full-size trucks and SUVs. It replaces a failed or sluggish actuator so the transfer case and front differential can lock in when you shift into four-wheel drive. This 4WD actuator suits owners doing their own drivetrain repairs on older K-series rigs.

Built For Performance

• Direct replacement for part number 600-490
• Houses an electric motor that shifts the front axle collar
• Sealed housing resists mud, water, and road splash
• Mounts to the front axle housing with factory-style threading
• Restores 4WD engagement when the original actuator stops responding

Fits These Machines

• for Chevy Blazer 1988-1996
• for Chevy K1500, K2500, K3500 1988-1996
• for GMC Yukon 1988-1996
• for GMC Tahoe 1988-1996
• for GMC K1500, K2500, K3500 1988-1996

On-The-Job Use

• Restoring four-wheel drive on older full-size pickups and SUVs
• Servicing front axle engagement after actuator failure
• Drivetrain repairs on K-series trucks used for towing and hauling
• Routine maintenance on high-mileage 1988-1996 GM trucks

Specs At A Glance

Good To Know

Q: How do I know the actuator is the problem? A: If the truck will not engage four-wheel drive and the transfer case and switch check out, a failed front axle actuator is a common cause.

Q: Does this fit every K-series truck from those years? A: It is listed for 1988-1996 Chevy and GMC K1500, K2500, K3500, Blazer, Yukon, and Tahoe models, but confirm your axle and serial number before ordering.

Shipping Restriction: Due to emissions regulations, this item cannot be sold or shipped to California, Colorado, Maine, or New York.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.