How To Add a 4-Way to a 2019 GMC Sierra 3500 To Use with Tailgate Light Bar

Updated 04/15/2020 | Published 04/14/2020

Products Featured in This Question

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

(465)

$31.67

Putco Red Blade LED Tailgate Light Bar - Stop, Tail, Turn, Backup - 60" Long

(6)

$316.99

Question:

Trying to connect the opt7 tail light bar to my truck that has a 4 pin connector. What is the correct t style that will connect to my existing wiring harness and this 4 pin. Like the CURT 56584 but it says not for my truck. Thanks ahead of time.

asked by: Todd

Expert Reply:

In order to add a 4-way trailer connector while also retaining the 7-way trailer connector on a 2019 GMC Sierra 3500 you can use the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118384 which offers plug-n-play installation. This will then allow you to plug in a tailgate light bar like the Putco Red Blade LED Tailgate Light Bar part # P92010-60 and still tow a trailer if needed.

expert reply by: Conner L