Dorman 600-502 Transfer Case Switch

Transfer Case Switch for GM 4x4 Applications

This Dorman transfer case switch is a direct replacement for the original equipment switch on select GM trucks and SUVs. It is built for vehicles with a 3-pin connector and uses a blade terminal design for straightforward electrical connection.

• Direct replacement transfer case switch for select Chevrolet, GMC, and Cadillac 4x4 applications
• 3 blade terminals for the factory-style electrical interface
• No wiring harness included
• Package contents: switch
• Cross-reference part numbers include Standard Ignition TCA-4 and OE-style replacements such as 15693423

Fitment Details

• Fits 1988-2000 Chevrolet K2500, N/A, 3 Pin Connector
• Fits 1992-2000 Chevrolet K3500, N/A, 3 Pin Connector
• Fits 1988-2000 GMC K2500, N/A, 3 Pin Connector
• Fits 1992-2000 GMC K3500, N/A, 3 Pin Connector
• Fits 1993-2000 GMC Yukon, N/A, 3 Pin Connector
• Fits 1999 Cadillac Escalade, N/A, 3 Pin Connector
• Fits 1988-1999 Chevrolet K1500, N/A, 3 Pin Connector
• Fits 1993-1999 Chevrolet K1500 Suburban, N/A, 3 Pin Connector
• Fits 1993-1999 Chevrolet K2500 Suburban, N/A, 3 Pin Connector
• Fits 1995-1999 Chevrolet Tahoe, N/A, 3 Pin Connector
• Fits 1988-1999 GMC K1500, N/A, 3 Pin Connector
• Fits 1993-1999 GMC K1500 Suburban, N/A, 3 Pin Connector
• Fits 1993-1999 GMC K2500 Suburban, N/A, 3 Pin Connector
• Fits 1993-1994 Chevrolet Blazer, N/A, 3 Pin Connector

How This Part Is Used

• Restores transfer case switching on GM 4x4 trucks and SUVs
• Addresses inoperative or inconsistent 4WD mode selection
• Helps correct electrical signal loss at the transfer case switch
• Supports proper engagement of the factory 4WD control system
• Replaces a worn or failed original switch on compatible Chevrolet K1500, GMC Yukon, and related applications

Installation Notes and Tips

Verify the vehicle uses a 3-pin connector before ordering. Compare the original switch connector, terminal style, and transfer case configuration to confirm match-up on Chevrolet K2500, GMC K3500, and other listed applications. Because the wiring harness is not included, reuse the existing harness connection during installation.

Quality Assurance

Dorman manufactures this transfer case switch as a direct OE-style replacement for select vehicle years, makes, and models. Part number 600-502 is engineered to match the original switch form and electrical interface for the listed GM 4x4 applications.