Dorman 600-504 Transfer Case Switch

Transfer Case Switch for Axle-Mounted Applications

This Dorman transfer case switch is a direct replacement for the original equipment switch used on select Chevrolet, GMC, and Isuzu vehicles. It is built for axle-mounted applications with a 2-pin connector, making it a practical choice for restoring transfer case signal function on the right vehicle match.

Part number 600-504 is a direct-fit transfer case switch for common GM compact truck and SUV platforms, including Chevrolet S10 and Blazer, GMC Sonoma and Jimmy, and Isuzu Hombre applications.

Key Features

• Direct replacement transfer case switch for select OE applications
• Pin terminal design with 2 terminals
• Mounts on the axle for listed vehicle applications
• No wiring harness included
• Package contents: switch
• Cross-reference: Standard Ignition TCA-6

Detailed Description

Dorman 600-504 is engineered to replace the original transfer case switch on specific Chevrolet S10, Chevrolet Blazer, GMC Sonoma, GMC Jimmy, and related Isuzu Hombre models. The switch uses a 2-pin connector and pin-style terminals, matching the listed OE-style electrical interface for the covered applications. If your vehicle uses an axle-mounted transfer case switch, this part number 600-504 provides a direct replacement path without changing the factory connection style.

This transfer case switch is also listed with interchange references including 1S3163, 15598481, 8155984810, FWD-23, and FWD21. For buyers searching by vehicle, it is a relevant replacement for Chevrolet S10 transfer case switch, GMC Sonoma transfer case switch, and Chevrolet Blazer transfer case switch applications.

What It Can Help Resolve

• Inconsistent transfer case position signal
• Faulty 4WD indicator operation
• Transfer case switch electrical connection issues
• Replacement needs after switch wear or failure
• Restoration of axle-mounted switch function on listed vehicles

Installation Notes and Tips

Verify the connector style, terminal count, and mounting location before ordering. This part is specified for axle-mounted applications with a 2-pin connector, and it does not include a wiring harness. Confirm vehicle year, make, and model against the fitment list for the correct application match.

Quality Assurance

Dorman supplies direct-replacement automotive parts for OE-style fit and function on listed applications. Part number 600-504 is built to match the original switch configuration for the covered vehicles, supporting a straightforward replacement process when the factory transfer case switch is no longer operating correctly.