Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
This item does not fit your vehicle
1998 Lexus ES 300
These items fit your vehicle
1998 Lexus ES 300
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Quickly and easily install a 4-way trailer connector on your vehicle 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. You will have to remove the tail light assemblies to access this harness. Once you've plugged in the T-connector, run the hot lead 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 rear 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.
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.
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The kit was exactly what I needed to help add a towing package to my Durango. The videos on etrailer.com were perfection to help when it came time to install it. Unfortunately (and through no fault of etrailer.com) I traded the Durango in on one with a v8 about 3 weeks after I installed the kit. So, I cant say how it's doing now lol
I think run a power wire is a little unnecessary. When you can buy one that are not plug and pay that don't require a power wire
Worked good and can on time. The only thing was the right side wiring could be longer for better mounting of the black controller box.
Shipping was fast. I have not had a chance to install the hitch yet but plan to this weekend. The videos for each item were very informative and easy to follow. Knowing what tools I may need ahead of time is great and I have not doubt that the install will be smooth. Thank you!
Brooke M.
6/5/2025
I know you probably haven't installed it yet, but we would love to know what you think once you have, too :)
Hitch fits good. New hitch does not have the tabs to fasten the lower bumper to the hitch. See pic. I guess you use zip ties. Not impressed
Great place. Super fast shipping! definitely recommend and I will definitely do future business with them
amazing website, easy to use and navigate, part install was great and love the videos as well thank you
The control box wiring was not nearly long enough. Had to reach way up into vehicle to try to attach. Finally able to zip-tie it to other wires. Not ideal and made the installation take twice as long as it should have.
Very nice fit. In my opinion, it wasn't too bad too install. I had the most trouble getting the original bolts out of the bumper iron than any other part of the fitment. I chose to do the Curt wiring harness at the same time....THAT took longer than the hitch installation. The back end went smoothly, it is the routing of the positive wire to the battery that is the time consumer. That is if you choose to do it in a neat and thoughtful manner. Overall, both projects took about 5.5 hours for me to do all by myself. Probably shouldn't take as long, but with the trouble with the bolts.... good products, I would recommend them to anyone.
Super quick delivery and the package was in great condition upon arrival. Very pleased with Etrailer and I will order from them if necessary.
Did not fit my vehicle
Mike L.
10/26/2025
What's the year/make/mode/trim level of your vehicle? Per Curt, this harness fits all models of the 2014-2026 Dodge Durango....
Installed on 2016 Durango, it went well, nice product, I really liked the positive wire gauge, and quality! I added a small mounting bracket to an existing 13mm stud to mount the controller for a solid mount location. Thank you
Excellent service and very fast shipping and delivery
The install video wasn't very helpful in routing the positive wire to the battery or where to selftap the ground wire. After viewing videos on youtube i discovered uhaul says to selftap the ground wire into anywhere behind the passenger tail light. I routed the positive wire along the gas lines thru the control arm brackets and then along the wire harness long the passenger side to just behind the front wheel, i went up thru a hole in the fire wall and connected to where you would jump the car. Still tbd if it works properly, as i just installed it to the car, but haven't used it on a trailer yet.
Very well designed. Made install Very simple and easy. These kind of products keep people coming back!
Received my trailer wire harness on a Sunday USPS priority delivery. Product had clear directions and I installed it on my own in 1.5 hours. Thanks ETrailer for the fast shipping. Love your website and coustomer service. Thanks Kevin
Shipped quickly and arrived on time and as expected. We'll done.
Loved the installation of this. So easy, took me 30 minutes from start to finish. Includes everything you need. I used the installation video they send you in your purchase email instead of the paper. Clean install, works great so far. Highly recommend
Fit perfectly on my 2022 Durango GT. I didnt have to cut the bumper either. Highly recommend and easy install. Took me about an hour and a half from start to finish.
everything arrived on time my entire order is in the box all parts and pieces. now I just have to install it.
Very easy to install. Zip-ties are included but you will need more. Check with your dealer/service manager before installing.
Instructions were clear. This was a much more complicated install than the method I previously used (splicing into twilight wires and hoping i picked the right ones), but I'm much more confident in this install and the materials all seam to be high quality.
easy to hook up
Installed and works perfectly!
Excellent plug and play..installed it when doing the hitch to make it so much easier
Do you have a question about this Custom Fit Vehicle Wiring?
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Mike L.
10/26/2025
There are a couple of good benefits of having the taillight converter being directly connected to the vehicle's battery. For one, it helps keep the tow vehicle's wiring system isolated from the wiring on the trailer. If a short circuit happens in the trailer wiring, the harness/converter will prevent the vehicle's wiring from being damaged. Secondly, the taillight wiring harnesses of most never vehicles aren't capable of handling the power requirements of both the vehicle and the trailer taillights. A direct power draw from the vehicle battery is very necessary. I hope that helps explain it for you....