Keep your four-wheel-drive system reading the correct transfer case position with the Dorman - OE Solutions Transfer Case Switch 600-502. It installs as a direct-fit replacement for the listed applications: the 1999 Cadillac Escalade, 1993-1994 Chevrolet Blazer, 1988-1999 Chevrolet K1500, 1993-1999 Chevrolet K1500 Suburban, 1988-2000 Chevrolet K2500, 1993-1999 Chevrolet K2500 Suburban, 1992-2000 Chevrolet K3500, 1995-1999 Chevrolet Tahoe, 1988-1999 GMC K1500, 1993-1999 GMC K1500 Suburban, 1988-2000 GMC K2500, 1993-1999 GMC K2500 Suburban, 1992-2000 GMC K3500, and 1993-2000 GMC Yukon. See the "Vehicles it fits" section for the full list.
- What it does: serves as the electrical switch in the transfer case circuit, signaling position information to the four-wheel-drive system.
- Direct-fit: replaces the original switch on the listed applications.
- Signs it may need replacing: an inaccurate or non-responding 4WD indicator, or a related warning light. Diagnose the cause first — if the original switch is at fault, this replaces it.
Interchange: FWD11 · FWD16 · 15693423 · 15731299 · TCA-4 · TCA4
Manufacturer part number 600-502 (also 600502).
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
FWD11, FWD16, 15693423, 15731299, TCA-4
Frequently Asked Questions
What is the Dorman 600-502?
It is a transfer case switch — the electrical switch in the transfer case circuit that signals position information to the vehicle's four-wheel-drive system.
Which vehicles does it fit?
It is a direct-fit for applications such as the 1999 Cadillac Escalade, 1988-1999 Chevrolet K1500, 1988-2000 Chevrolet K2500, 1995-1999 Chevrolet Tahoe, and 1993-2000 GMC Yukon. See the "Vehicles it fits" section.
What are signs this switch may need replacing?
An inaccurate or unresponsive 4WD indicator or a related warning light can be signs. Diagnose the cause first; if the original switch is faulty, this replaces it.
What numbers does this part interchange with?
It replaces FWD11, FWD16, 15693423, 15731299, and TCA-4 (also listed as TCA4).
Is the 600-502 a direct-fit?
Yes. The 600-502 is a direct-fit replacement for the listed applications and installs in place of the original transfer case switch.
