GM 20904439 Trailer Brake Continue Relay Assembly

The ACDelco GM Original Equipment Trailer Tow Relay functions as an electro-mechanical switch containing a coil and set of connection points, and is a GM-recommended replacement for your vehicle's original components. This trailer tow relay provides a variety of control functions for a vehicle's trailer brake system, and has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.