To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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Wiring a trailer normally means cutting into factory wires, but this harness skips that. The Curt T-Connector plugs inline with the tail light connectors, giving you a clean, factory-style connection. There’s no need to splice or tap into existing wiring, which makes it quick and simple to set up for towing lights.
This harness is built to plug directly into the vehicle’s rear lighting system. It uses factory connection points behind the tail lights, so routing is straightforward and there’s no guessing about which wires go where. Most folks can have it in place and working without special tools or extra parts.
The integrated powered converter takes its power straight from the vehicle’s battery instead of pulling it through the light circuits. That means it won’t overload the vehicle wiring while giving steady current to your trailer lights. It keeps running, turn, and brake lights bright and consistent every time you tow.
The 4-flat connector gives you the basic lighting functions you need—running, turn, and brake signals—ready to plug right into most small or mid-size trailers. It’s a simple, proven connector style that’s easy to use and fits a wide range of standard trailer wiring setups.
Customer Satisfaction Score:
78% were satisfied with this product
22% of customers were not satisfied
Ratings & Reviews

Robert
1/3/2025
EXCELLENT NO PROBLEMS

Frank M.
9/3/2024
Was returned. Not the correct one for my vehicle.

Jenny N.
9/7/2023
Let us find one that will work for you. I did reach out to Curt and found that part # C59236 would work with LED lights. This one would wire into your vehicles wiring versus being a plug in kit. I have included a link to show how the install would go on a 2023 Kia Telluride. I will have our Customer Service team teach out assist with returning the original harness.
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Brooke M.
3/7/2024
It looks like this harness fits the LX and S models only and we dont have one for the EX - X. We will reach out to you about a return since we made a mistake in suggesting the part.