The CURT Quick-Plug Brake Controller Harness makes the installation of your brake controller a snap. It's designed to allow your brake controller to plug directly into your vehicle's power system using an original equipment connector. It's equipped with two plugs â one that snaps into your vehicle's original equipment socket and the other that connects to a CURT brake controller. The CURT Quick-Plug Harness installs with plug-and-play convenience to get you setup and on your way with time to spare. It includes 2' of wire and a slit loom sleeve to keep wires well protected and contained. This brake controller adapter harness is compatible with certain years of the Ram 1500, 1500 Classic, 2500, 3500, 4500, and 5500 (without factory integrated brake controller ITBC).NOTE: Software in vehicle must be updated by dealership in order to accept an aftermarket brake controller. Failure to update may result in damage to vehicle.• Allows a CURT trailer brake controller to be plugged into OEM socket • Quick-plug harness installs with plug-and-play convenience• Wire colors match standard brake controller harnesses• Includes 24" of 12-gauge wire for flexible installation• Slit-loom sleeve keeps wires contained and protected Compatible Vehicles2016-2024 Ram 1500, 2500, 3500, 4500, 5500 without Factory Integrated Brake Control2015 Ram 1500, 2500, 3500 Includes 2' of wire & a slit loom sleeve to keep wires protected | Curt 51458 Brake Controller Harness, Select RAM