If you’re looking to add factory auxiliary switches to your HD Sierra, the AEV Aux Switch and harness kit is your go to solution. Designed to simplify accessory integration, the AEV GM Auxiliary Switch Harness provides OEM-grade wiring and plug-and-play functionality for reduced installation time. Engineered with custom-fit routing, this harness allows for clean, professional installation while utilizing all five factory auxiliary switches.Rated for up to 30 amps and featuring built-in voltage protection, the harness provides a reliable solution for powering aftermarket accessories. Convenient accessory hook-up points are located under the hood, making it easy to connect compatible equipment while maintaining an organized engine compartment. The harness also includes provisions for adding a trailer brake controller on vehicles that were not factory equipped.
- Key FeaturesUtilizes all five factory auxiliary switchesOEM-grade wiringRated for 30 ampsBuilt-in voltage protectionUnder-hood accessory connection pointsCustom-fit design for proper routingPlug-and-play installation reduces installation timeIncludes open wires dedicated for installing a trailer brakeSealed 4-pin connector that utilizes a Yazaki terminal and seal. Part numbers 7114-4140-02 and 7158-3082-90
