2021 Ram ProMaster 1500 Trailer Wiring Recommendation for 4-Way and 7-Way Sockets

Published 10/31/2023

Products Featured in This Question

7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End

(2638)

$43.25

10 Gauge Wire - Blue Primary - Per Foot

(104)

$1.84

No-Drill Mount Bracket, Long

(681)

$19.75

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(46)

$92.59

Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires

(3397)

$121.18

Question:

Hello I need the appropriate 7 pin / 4 pin setup for a 2021 ram pro master 1500.

asked by: Trevor M

Expert Reply:

To replace a 4-Way/7-Way connector on your 2021 Ram ProMaster 1500 you need the Hopkins Socket Kit # HM40975.

Otherwise, if you're needing to ADD 4-Way and 7-Way sockets then you need the following parts:

- Curt T-Connector Vehicle Wiring Harness # C58DR
- Universal Installation Kit # ETBC7
- No-Drill Mount Bracket, Long # 18136
- Extra 10 Gauge Wire # 10-1-1 (on an as-needed basis)

If you also need a brake controller then I really like the Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness # RED52VR because it can be installed virtually anywhere and the control knob doesn't take up much space. This will splice in to the wiring you ran for the ETBC7.