To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Quickly and easily install a 4-way trailer connector on your Ford Bronco with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.
Features:
Specs:
Installation
This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery.
Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your cargo area.
It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.
A tail light converter is built into this T-connector. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.
Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of the trailer. This converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.
Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.
Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.
Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.
California residents: click here
This is the second one I purchased but unfortunately the first one was for LED lights which I don't have so I had to order another one. This was a mistake on my part and now the lights work as they should but unfortunately I can't return this.
They're very informative and helpful this was third time I ordered from them.
Brooke M.
5/15/2025
Awesome! So happy to hear that! What are you powering on your Bronco with this harness?
Brooke M.
5/19/2025
Failed after 20 months of minimal use. The trailer lights stay on even when the Bronco is off (and no vehicle lights are on). I was told the warranty is one year and I can buy another one. I expected this to last longer and will try to find another option.
Jenny N.
5/9/2024
Mike, I have heard of this before. When it happens it means that the harness has experienced an overload and generally is not fixable. It is unfortunately that it happened past the warranty time frame for the harness. I recommend taking a look at part # TK33VR if your 2022 Ford Bronco does not have LED tail lights or part # TK99VR if the Bronco with LED tail lights. We tend to see it happen less with the Tekonsha branded harness.
Instructions were great. Easy to install. No problems so far
Exactly what I needed. My tail lights were NOT LED and this was the right wiring harness for that. Instructions were fairly simple to follow. Works great.
Very quick shipping.
Good quality and easy to install
Install was easy and instructions were great! I have used it almost weekly for a year and it has performed flawlessly!
I installed this on my Ford Bronco Base. The hardest part of the install is getting into the tail light assembly area. Overall it is a straight forward install. I've been using it for a year now with no issues. Towing my boat and off road camping trailer. It has been on long road trips and survived getting bounced around off-road and continuing to work with no issues.
The women I spoke to was extremely patient understanding and knowledgeable. Very helpful
Works as expected after a year of use, no issues
Quick delivery; clear instructions.
Easy installation and works fine.
2 units from other manufacturer fid not work. This one worked great.
very well kit...fit just as instructions..wish there was a place to get power in rear instead of running wire all the way to battery, but well made kit
I ordered my trailer towing harness and it arrived before I expected it to. The quality seems top notch. Installation was easy and it functions perfectly.
Great part, easy install quality fit
The wiring harness was easy to install. The connectors fit the factory connectors without any issue. There were plenty of crimp fittings, wire, and zip straps, although I used more zip straps than were probably necessary. I can’t say that Ford made it easy because it was tight getting the wires pulled through.
the videos should show that the 4 little black screw/plugs [ holding the inner light plastic cover ] can be pulled out like a bad tooth!
Works as expected
Perfect fit
Harness/adapter works fine. No issues.
They instructions are decent but I still opted to watch snippets of a YouTube installation as well to help routing of specific wires. Seems to be an excellent product and installation was easy taking about 1.5 hours. Would recommend.
This was a good product, install went smoothly on my 2dr Base. All needed accessories were included, and my lighting is working well.
Wrong product for my needs; sending it back; explained intended application and your sales person (as well as myself) didn’t recognize it;
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Victoria H.
2/13/2025
Hi Thomas, as long as the wrong item was ordered within the last 60 days and it hasn't been installed or used, you are able to return it. Let me know if you would like help with creating a return label for it.