Parts needed to Add 7-Way to 2024 Hyundai Tucson PHEV
Updated 01/05/2026 | Published 09/14/2024
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Question:
Hi there, I have a 2024 Tuscon plug in hybrid with an already mounted 2 trailer hitch and 4 pin trailer plug. I would like to instal a 7 pin system for trailer brakes. I have heard that the plug-in Hybrid isnt happy with any of the conversion options anectdotally. Could you please educate if this 7 pin conversion is possible and if so what parts I should purchase. Thanks for your time, cheers Roger in Kimberley, BC
asked by: Roger S
Expert Reply:
Hello Roger; it will be possible to add a 7-way to your 2024 Hyundai Tucson. However, you will have to take a look at your vehicle to decide which one is right for you. If your current 4-way is plugged into the factory tow port behind the bumper and you have the factory tow package you can use the Curt # C68JR. If you do not have the tow package but have the tow port you need the Tekonsha # TK44ZR instead.
The options using the factory plug will be pretty straightforward and shouldn't have an issue since you're using the factory wiring. If you have a 4-way like the # C59236 on there installation is a little more complicated. This would require the # ETBC7 to upgrade to a 7-way. You won't be able to connect this to the PHEV battery so you will have to locate the 12V accessory battery for installation. As long as your 4-way works there is no way it would have an issue since the only thing you're really adding is the 12V power and brake output wire.
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Robin H.
1/5/2026
Hey Roger, how did things go with adding the 7-way wiring on your Tucson plug-in hybrid? Were you able to find the right harness for your setup? Your update could make it easier for others working with the same hybrid system.