4-Pin Trailer Wiring Harness kit Compatible with Ram ProMaster 1500 2500 3500 2014-2023 4-Way Flat Trailer Connector Plug Replace# 56478

【Fitment】This trailer wiring harness kit fits for Ram ProMaster 1500 2500 3500 2014 - 2023 . The rear 4-pin trailer wiring connector replace# 56478 【Standard 4-Way Output】The wiring harness provides a Standard 4-way flat socket output, for plugging in and towing a trailer, connecting easily to trailer tail lights, turn signals and brake lights. 4-way trailer light wiring is popular on a variety of trailers. 【Reliable SMT Circuitry】Built with Surface Mount Technology (SMT) circuitry, the rubber dust cover of 4-pole trailer lighting wire harness ensure the generation of less heat, Promoting long-lasting use and weather resistance.It easily fits onto the 4-way flat connector when not in use. 【Easy Installation】No cutting! No splicing! Plug-and-Play design. 4-way trailer light wiring can be easily connect your vehicle's electrical system to a trailer with the help of instruction. 【NOTE】Vehicle battery connection required. Please read instructions before starting installation and check properly wired trailer.