| 2011-2023 Ram 3500 Trailer Wiring Harness - Hopkins Ram 3500 Trailer Wiring Harness. Brand: Hopkins. Fits Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23. Endurance (TM) 5th Wheel Vehicle To Trailer Wiring Harness --... ... more 2011-2023 Ram 3500 Trailer Wiring Harness - Hopkins Ram 3500 Trailer Wiring Harness. Brand: Hopkins. Fits Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23. Endurance (TM) 5th Wheel Vehicle To Trailer Wiring Harness --... Partsgeek.com | | $79.97 go to store |