Standard Ignition TCA90 4WD Switch

OE-Style 4WD Switch for Colorado and Canyon

Restore transfer case control with this Standard Ignition 4WD switch, part number TCA90. It is a direct-fit OE replacement for select Chevrolet Colorado and GMC Canyon models, with the connector and terminal layout needed for proper electrical function.

Key Features

• Direct-fit OE replacement for straightforward installation and proper restoration of four-wheel drive operation
• Female connector with 1 rectangular connector interface
• 7 male blade terminals for the specified transfer case electrical connection
• Copper alloy conductors for strong electrical conductivity and reduced resistive loss
• Built with durable materials and a robust switch design
• Standard Ignition TCA90 for transfer case switch applications

Product Details

The Standard Ignition TCA90 is a 4WD switch engineered for transfer case applications on 2004-2012 Chevrolet Colorado and 2004-2012 GMC Canyon models. Its OE-style form, fit, and function help maintain the original switch layout, while the copper alloy conductor design supports consistent signal transfer in the 4WD control circuit. This part number, TCA90, is built to meet the electrical and dimensional requirements of the original application for a clean replacement on Colorado and Canyon transfer case systems.

This part cross-references Dorman OE Solutions 600-913 for the same application.

What It Helps Fix

• Inoperative four-wheel drive selection
• Intermittent transfer case switch response
• Faulty electrical signaling to the 4WD system
• Wear-related switch failure in the transfer case control circuit
• Restoration needs after a damaged or unreliable OE switch

Installation Notes

Verify connector shape, terminal count, and transfer case application before installation. This switch uses a female rectangular connector with 7 male blade terminals, so matching the original harness and terminal layout is important for proper fitment. Confirm vehicle coverage for 2004-2012 Chevrolet Colorado and 2004-2012 GMC Canyon before replacing the existing unit.

Quality Assurance

Standard Ignition manufactures this switch with complete quality control throughout the production process. The design uses copper alloy conductors and durable materials to support reliable electrical performance and consistent restoration of 4WD function.