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Keep your trailer working properly with this ACDelco 20904439 Trailer Brake Relay. It has a compact size that will act as a direct replacement for your broken part. It is simple to install so you can get going right away. The automotive equipment is made with high-quality materials to give you a lasting performance that you can rely on. It has been manufactured to meet strict quality requirements. The relay is compatible with a variety of vehicles for your convenience. It can even be stored as a backup in your workshop until it’s needed.