Upgrading 4-Way to 7-Way Trailer Connector on 2019 Nissan Frontier

Published 06/29/2021

Products Featured in This Question

Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Nissan and Infiniti

(1068)

$18.33

Replacement Wiring Harness for Tow Ready Nissan Vehicle Wiring Harness

(108)

$35.47

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

(2644)

$44.19

Tekonsha BRAKE-EVN Trailer Brake Controller - 1 to 4 Axles - Proportional

(168)

$80.69

Question:

I purchased the T one wire harness for a flat 4 plug from you all for my 19 nissan frontier. It works great! Id like to upgrade that to having a 7 pin as well. Im ok with just replacing the 4 pin outright but if I could have both the 4 and 7 Id like to go that route. Any advice would be appreciated on what I should get to achieve this. My vehicle did not come with a factory wire harness so I purchased your all in one kit. Thank you and I look forward to hearing from someone.

asked by: Vincent C

Expert Reply:

Since you already have a 4-way on your 2019 Nissan Frontier adding a 7-way is pretty simple. Using part # 118267 gives you a 7-way but doesn't keep your 4-way.

To keep the 4-way with the new 7-way you can use part # HM40975 instead of the connector included with # 118267.

If you also need a brake controller I recommend the Tekonsha BRAKE-EVN, part # 5535, with the adapter harness # 3050-P.

expert reply by: Charles S