Standard Ignition TCA-82 4WD Switch

OE-Style 4WD Selector Switch for GM Trucks

Standard Ignition TCA-82 is a direct-fit 4WD switch for select Chevrolet Silverado and GMC Sierra applications. It is built with a black plastic finish, a female connector, and a 12-pin male terminal layout for OE-style electrical connection.

Key Features

• Direct-fit replacement 4WD selector switch
• Black plastic housing
• 1 female connector
• 12 male pin terminals
• Built with materials suited for demanding operating conditions
• Tested for electrical reliability and consistent function

Product Details

The Standard Ignition TCA-82 4WD switch is made for drivers replacing a worn or malfunctioning transfer case selector switch in GM trucks and SUVs. It matches OE-style fitment and electrical configuration to support straightforward installation and dependable operation. This part cross-references ACDelco 15913725 and Dorman FWD74 for the same application. Compatible With Chevrolet Silverado 1500, Silverado 2500 HD, Silverado 3500 HD, and GMC Sierra 2500 HD, Sierra 3500 HD, and Yukon XL 2500 applications where the listed transfer case configuration matches.

Common Problems This Part Can Address

• Inoperative 4WD mode selection
• Intermittent transfer case switch response
• Broken or worn switch contacts
• Dashboard 4WD selector issues
• Electrical connection problems at the switch

Installation Notes

Verify connector style, terminal count, and transfer case configuration before installation. This switch uses a female connector with 12 male pin terminals, so matching the OE electrical layout is important for proper operation. Confirm vehicle application by year, make, model, and whether the truck uses an auto shift transfer case or manual shift transfer case where noted.

Quality Assurance

Standard Ignition manufactures this replacement switch with complete quality control throughout the production process. Each unit is tested to help ensure reliable performance under extreme conditions.