Mopar 82213474 Integrated Trailer Brake Controller - OEM Style Electronic Brake Controller for Dodge Ram Trucks | Perfect for Towing Trailers, Boats & Campers

Excellent controller, and of course since it's OEM it fits perfectly. Be aware however, it's not easy to install ! Must remove the dash around the radio, and then get to the near impossible task of installing the mounting screws. With patience it'll happen, and I suggest looking at the YouTube video which has some good pointers.