Curt 4-Way Wiring Harness for a 2025 Hyundai Tucson PHEV
Updated 09/02/2026 | Published 08/26/2026
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Question:
I can’t seem to find a 4 flat trailer wiring harness for my 2025 Hyundai Tucson Plug in Hybrid. I had one of your plug in harnesses on my 2022 Tucson plug in hybrid, however it will not work on the 2025 model. Hyundai did not include a t-connector that I can plug into. I purchased a hitch from you that fits perfectly but can not hook up lights. Is there any wiring kit that will work on the 2025 Tucson plug in hybrid?
asked by: Peter M
Expert Reply:
Hey Peter, happy to help.
I checked with Curt and found something that will fit your vehicle (2025 Hyundai Tucson PHEV). The Curt T-Connector Vehicle Wiring Harness with 4-Way Flat Trailer Connector # C28DQ. This is a custom wiring harness T-connector that will plug into the wiring harness behind your taillights. You'll then need to ground it then run a wire up to your battery.
What are you hoping to haul with your Tucson?
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
- Hidden
- CURT
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Peter M.
9/2/2026
Thank you for the reply Trent. We use the hitch for a bike rack and need a flat 4 connector to use a set of magnetic tail lights because our bicycles block the view. I already have the curt T connector which I purchased and used on our 2022 Tucson. However the 2025 Tucson DOES NOT have a plug for it to plug into. There is no connector on the new 2025 plug-in hybrid model. Hyundai has verified this. I am looking for any other way to do it that does not involve working around the high voltage battery.