Parts Needed to Install 7-Way on 2015 Toyota Highlander

Updated 05/04/2026 | Published 05/01/2026

Products Featured in This Question

Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat

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$20.69

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

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$49.43

Question:

I have a 2015 Toyota HIghlander Limited that I want to wire for a trailer lights hook up. I want something that I simply disconnect the two OEM connectors and plug in the wiring harness supplied by you. I want a seven pin round connector on the trailer end of this harness with a five pin flat adaptor at the same location. Do you have such a harness?

asked by: Terry A

Expert Reply:

Hey Terry, we can help but we don't have a custom fit 7-way part number that fits your 2015 Toyota Highlander. Instead you'd have to start with a 4-way like the part # C56217 which is custom fit for your Highlander and then convert it to a 7-way with the part # 337TC1474P. We don't have a version with a 5-way on the side but the # 337TC1474P has a 4-way. What are you towing that uses a 5-way?

expert reply by: Jameson C