Difference Between Tekonsha and Curt Trailer Wiring Harness 2020 Highlander
Updated 09/12/2025 | Published 08/16/2025
Question:
When comparing 2 harnesses for 2020 toyota highlander, the Curt C55245 and t-one TK74FR, it looks like they are wired differently. It appears that the ground and running lights along with the left and right signal are opposite when comparing the vehicle connectors of the two harnesses. Can you confirm if they are the same? If they are different how do I know which one I need? Thank you for your time and assistance.
asked by: Todd K
Expert Reply:
Hey Todd, I can assure you that the Tekonsha part # TK74FR and the Curt # C55245 that both are a confirmed fit for your 2020 Toyota Highlander are wired the same and would work identically. If it were me I would go with the Tekonsa just because it's currently priced better but also in general we have the best luck with the Tekonsha harnesses.
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- Factory Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Search Results: wiring harness
- Search Results: roof rack
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Shop: Roof Rack
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Video: Beginner’s Guide to Installing the Curt Trailer Hitch Receiver on a 2022 Toyota Highlander
- Shop: Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
- Shop: Brake Controller
- Shop: Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit
- Video: How to Install the Curt T-Connector Vehicle Wiring Harness on a 2022 Toyota Highlander
- Search Results: 18136 mount bracket
- Search Results: wiring kit
- Video: Clean Up Your Trailer Wiring
- Q&A: Best Hitch for 2007 Lexus RX 350
- Q&A: How to Tell if 2007 Lexus RX 350 Has Factory Tow Package
- Q&A: Hitch and Wiring Installation on 2007 Lexus RX350 With Factory Towing Prep Package
- Video: Installation: Curt Trailer Hitch Receiver on a 2023 Toyota Highlander
- Video: How to Choose a Trailer Brake Controller
- Shop: Towing Mirrors
- Search Results: trailer hitch
- Search Results: converter
- Q&A: Need Hitch And Wiring For A 2020 Toyota Highlander Limited AWD
- Video: Curt Mounting Bracket for 4-Pole Flat Trailer Connector Review
- Search Results: trailer wiring
- Video: An In-Depth Look at the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package-C55245
on Custom Fit Vehicle Wiring
Jameson C.
9/12/2025
Hey, did you decide to go with the Tekonsha harness for your Highlander? I'd love to hear how it worked out for you, as it could give others confidence when choosing between these options.