7-Way Wiring Harness For Installing Redarc Brake Controller On 2023 Toyota Highlander
Updated 12/16/2025 | Published 11/26/2024
Products Featured in This Question
Question:
2022 highlander w OEM hitch: Factory 4-pin wiring installed just behind bumper but no 4 pin connector. Verified Toyota PT 725-48201 is their harness to get from from connector in picture to a 4 pin. But 4 pin does me no good. Want to install a Redarc brake controller and 7-pin connector. Do you supply a kit or whatever is need to accomplish this? Thank you in advance! Andy
asked by: Andy K
(click to enlarge)
Expert Reply:
Hello Andy, thanks for getting in touch. We do offer a 7-way harness for your 2023 Toyota Highlander. Take a look at the Tekonsha OEM Replacement Vehicle Wiring Harness # TK57VR. This will plug directly into the OEM 10-pin connector located on the drivers side behind the trim panel near the seat belt bracket. This kit contains all of the wires and components needed to add the 7-way. The plug in your picture is only used for the 4-pin connector.
The only thing worth noting is the # TK57VR comes with an adapter for a Tekonsha brand brake controller. You will need to use the Redarc Tow-Pro Wiring Adapter for Tekonsha Brake Controller Harness part # 331-TPH-017 in order to install your Redarc brake controller.
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Visible
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Trailer Wiring
- Shop: Brake Controller
- Shop: Trailer Hitch
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Towing Mirrors
- Shop: Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
- Q&A: Recommended Trailer Wire Harness For A 2021 Toyota Highlander Platinum Hybrid
- Video: Install: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector on a 2023 Toyota Highlander
- Video: How to Install the Curt T-Connector Vehicle Wiring Harness on a 2022 Toyota Highlander
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Brake Controller Installation: Starting from Scratch
- Video: An In-Depth Look at the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package-C55245
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
- Shop: Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector
- Search Results: c56rv
- Search Results: 18136 mount bracket
- Search Results: etbc7 wiring kit
- Search Results: c67ur
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional
- Video: Let’s Check Out the No-Drill Mount Bracket, Long
- Search Results: prodigy 2
- Article: Trailer Wiring Diagrams
- Q&A: Parts Needed to Install 7-Way and Brake Controller 2024 Toyota Grand Highlander
- Q&A: Comparing Curt Trailer Hitch Receivers # C99FR and C45CR For a 2022 Toyota Highlander
- Shop: Suspension Enhancement
- Shop: Salt Spreader
- Q&A: Does this Hitch Fit the 2025 Toyota Highlander?
- Q&A: Recommended Hitch for a 2024 Toyota Grand Highlander
Jesse M.
12/15/2025
Hey Andy, how did things go with the Tekonsha 7-way harness and the Redarc wiring adapter on your Highlander? Your results could really help others looking to add a brake controller and 7-way setup to their factory wiring.