TEKONSHA 303100 Trailer Brake Controller Custom Harness

For Use With All Tekonsha Trailer Brake Systems; Plug In Type; 2 Plug; Does Not Require Adapter Harness; Clamshell

The TEKONSHA 303100 Trailer Brake Controller Custom Harness is designed to simplify the connection between a compatible Tekonsha trailer brake controller and the vehicle’s existing brake-control wiring. This application-focused harness helps reduce the need for custom wire splicing, supporting a cleaner installation and helping preserve the vehicle’s original wiring connections. It is a practical solution for trailer owners, installers, and service professionals who need a dependable connection for an appropriately matched brake controller system.
Use the TEKONSHA 303100 as part of a compatible trailer brake control installation where a custom harness is required. The harness is intended to help streamline setup by providing an organized connection path between the controller and the vehicle interface. Before installation, verify vehicle compatibility, controller requirements, and connector configuration to ensure the harness matches the intended application. Following the vehicle and brake controller manufacturer’s installation instructions is recommended for proper operation and safe towing performance.
Built for use with compatible Tekonsha trailer brake control equipment, this custom harness supports an efficient installation process while helping reduce unnecessary wiring work. Its application-specific design can make controller replacement, service, or initial installation more straightforward than creating a connection from individual wires. The TEKONSHA brand is widely recognized for trailer brake control solutions, and part number 303100 provides a clear reference when identifying the correct harness for a supported setup. This product is supplied as a trailer brake controller custom harness; confirm all vehicle and controller