The trailer tow module sits between the truck harness and the trailer connector, driving the trailer lamps and brake output without back-feeding the vehicle circuits. When it fails you usually lose one function at the trailer, most often the brake or turn feed, while everything on the truck itself keeps working normally.

Module Details:

• Fits 2012 Ram 1500, 2500 and 3500 trucks.
• Manages the trailer tow electrical connections and brake output.
• Supersedes part numbers 56029431AK and 56029431AL, so it also serves earlier applications that carried those numbers.
• Genuine Mopar original equipment replacement.
• Confirm by VIN if your truck is older than 2012. Programming may be required.