Recommended Wiring Harness for a 2018 Toyota Highlander

Updated 08/26/2023 | Published 08/25/2023

Products Featured in This Question

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

(1198)

$50.68

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

(186)

$22.12

Curt Towing Starter Kit for 2" Hitches - 2" Ball - 3/4" Rise, 2" Drop - 7.5K

(829)

$93.06

Question:

I just bought a trailer hitch from you for our 2018 Toyota Highlander. I would like to know what wiring harness I need if I want to tow a camper.

asked by: Peter H

Expert Reply:

Welcome back! There's two options for wiring harnesses for your 2018 Toyota Highlander depending on whether or not you have the tow package. I have listed both options below along with a couple of installation videos:

With the Towing Package - Curt T-Connector Vehicle Wiring Harness item # 56042

Without the Towing Package - Curt T-Connector Vehicle Wiring Harness item # C56217

To round out your towing setup, I recommend the Curt Towing Starter Kit for 2" Hitches item # C45534. This towing kit will provide you with a 2" ball and a fixed ball mount with a 3/4" rise and 2" drop. It also includes a hitch pin and clip, hitch receiver lock with keys, hitch cover, and a storage case.

expert reply by: Jerred H