Standard Ignition TCA-45 4WD Switch

OE-Style 4WD Selector Switch for GM SUVs

Standard Ignition TCA-45 is a direct-fit 4WD switch for select Cadillac, Chevrolet, and GMC applications. It is built for the four wheel drive selector function and uses OE-style connectors and terminals for straightforward replacement in the correct vehicle applications.

Key Features

• Direct-fit OE replacement 4WD switch
• Female connector with 2 rectangular connectors
• 12 male blade terminals for factory-style electrical connection
• Built with high-quality materials for demanding operating conditions
• Extensively tested for reliability in automotive electrical use
• Standard Ignition part number TCA-45

Product Details

This Standard Ignition TCA-45 four wheel drive selector switch is made for vehicles that use a factory-style dash or control-panel 4WD switch. The OE replacement design supports clean installation in the original location, while the rectangular connector layout and blade terminals match the electrical interface used in the listed applications. It is a practical replacement for worn, intermittent, or nonresponsive 4WD selector switches on vehicles such as the 2003-2004 Cadillac Escalade, 2003-2004 Chevrolet Tahoe, and 2003-2004 GMC Yukon.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

• Fits 2005 GMC Yukon XL 1500, 3 Button Switch.
• Fits 2003-2004 Cadillac Escalade.
• Fits 2003-2004 Cadillac Escalade ESV.
• Fits 2003-2004 Cadillac Escalade EXT.
• Fits 2003-2004 Chevrolet Tahoe.
• Fits 2003-2004 GMC Yukon.
• Fits 2003-2004 GMC Yukon XL 1500.

Installation Notes and Tips

Verify connector shape, terminal count, and switch style before installation. TCA-45 uses a female connector with 2 rectangular plugs and 12 male blade terminals, so matching the factory connector is important for proper fitment. Confirm the vehicle’s original 4WD selector layout, including the 3-button switch note on the 2005 GMC Yukon XL 1500 application, before replacing the part.

Quality Assurance

Standard Ignition states that this switch is manufactured with complete quality control throughout the production process and is tested for reliability. The part is built from materials intended to withstand harsh automotive operating conditions.