GM 20904439 Trailer Brake Relay Assembly OEM Style Replacement For GM Vehicles Built Tough For Trucks, SUVs And Trailers Easy Install Reliable OEM Parts
✔️ OEM-style trailer relay, single unit for GM trucks, easy install
GM Genuine Parts Trailer Tow Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These relays function as an electro-mechanical switch containing a coil and set of connection points. These trailer tow relays provide a variety of control functions for a vehicle's trailer brake system. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
✅ OEM-style trailer tow relay designed for GM vehicles, reliable control of trailer brakes✅ Electro-mechanical switch with a coil and connection points for consistent operation
✅ GM Genuine Parts engineering validated for Chevrolet, Buick, GMC, Cadillac vehicles
✅ Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
💡 What is a trailer brake relay assembly and why is it handy for GM vehicles?
This handy device manages brake signal and power routing between your tow vehicle and trailer, ensuring safe and reliable operation.
- ensures proper brake control signals between vehicle and trailer- follows GM OE-style specs for reliable fit in GM trucks and SUVs
- simplifies wiring by using a dedicated relay for trailer brakes
- backed by GM engineering and testing for long-term reliability