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Installing trailer lights has never been easier with the Curt T-Connector Vehicle Wiring Harness. This harness quickly and easily plugs directly into your vehicle's factory tow package port, offering a seamless, no-hassle connection. No more cutting, splicing, or tapping wires—just locate the connection point in your rear cargo area, plug in the connector, and you're set. It's a perfect solution for those who want a quick and efficient setup without the technical hassle.
Keep your trailer lights connector in peak condition with the included dust cap. Designed to guard the 4-way flat connector from the elements, it ensures that your connection stays clean and free from debris. This simple yet effective feature prolongs the lifespan of your wiring harness, so you can enjoy reliable performance every time you hit the road.
This custom-fit T-connector is specifically designed for vehicles with a factory tow package, ensuring a perfect fit behind your driver's-side interior trim panel. It's a tailor-made solution that integrates seamlessly with your vehicle's existing wiring, helping you avoid the guesswork and complications of aftermarket installations.
Electrical connections can be prone to corrosion, but the solution is simple. Apply a small amount of grease on all electrical connections—both the plug on your vehicle and the 4-pole connector—to keep corrosion at bay. This maintenance tip ensures long-lasting, reliable connections that won't fail when you need them most.
Designed for versatility, the Curt T-Connector works seamlessly with 5-pole, 6-pole, and 7-pole adapters (sold separately). Whether you're towing a small utility trailer or a large camper, this harness adapts to your needs, providing a reliable connection for any kind of tow.
Backed by a limited 1-year warranty, this wiring harness promises durability and peace of mind. It's built to withstand the demands of regular towing, ensuring your trailer lights remain functional and reliable trip after trip. Enjoy the assurance that you're using a product that's engineered for performance and longevity.
California residents: click here
One of reasons why I went with you guys was I really loved your step by step videos, something that other competitors does not have other than written notes. Only thing could have been better was that I wish I knew my vehicle did not have the whole towing package, learned that it had only portion of setup and previous owner removed the module portion for it. Learned that hard way but glad it worked out and its still working great. Thanks for great products for great price along with good support. Thank you!
Made well, came with everything needed instructions, zip ties etc
it was some wires and a connector. not too much to say.
When I received the hitch, it was halfway out of the box. I tried to install the hitch myself and could have if the hitch had not been bent. Had to take it to a local U-Haul and pay $[XX] to bend back and install. Should have just gone there first. Would have saved time and effort. The wiring harness didn’t work as well so I had to pay another $[XX] for them to fix that.
Just a heads up for Toyota Highlander owners. My Highlander had the towing package from the factory but I still needed the converter and wiring harness combo etrailer package.
It does not work on my trailer. My son installed it so I know it was done correctly... but it doesn't work on my trailer.
Took longer to clean out my junk in the back then to install it. Video on installation was spot on. Everything I have ever purchased and installed has been super easy. From wiring to several hitch receivers.
Easy to install after looking at the vi deo!
Was as advertised
Perfect, no issues.
We installed it on our 2017 Toyota Highlander Hybrid and it was so easy. Thanks for saving us hundreds over what the dealer wanted to do it! Took us about 10 minutes, following the video instruction was a breeze.
Works great, easy installation
Everything was great start to finish
Part was exactly what I needed. Shipped quickly. I will order from etrailer again for sure!
After balking at the cost to have an auto-shop add a trailer to our Toyota Highlander, we found etrailer.com and decided to take a chance. The "how to" videos factored considerably in our decision to buy ... they made it look so easy! And surprise! It really -WAS- that easy. We used standard block-type ramps (the kind you can buy for $40 ) to get the SUV up off the ground high enough to get underneath to do the work. Everything came off as easy as it was showed in the videos. Other than the fact this bar is a heavy so we had our teen daughter help hold it steady while we bolted it into place (i.e., get help for when you go to lift it), it went super smooth. Thanks for saving us $280 over the cost the car dealer quoted us! P.S. - be sure to watch the linked videos so you get the right trailer lighting attachment and ball hitch for your new hitch.
Anna 
5/20/2019
We are very happy with our trailer hitch, and all the accoutrements that we purchased with it. Your videos were enormously helpful, the hitch went on easily with a bit of help from our teenage daughter to lift it up into place, and we recommend your business to friends when they express an interest in getting a camper.
This wiring harness was a huge time-saver over wiring things manually like we did for our last trailer hitch a long-long-long time ago! If you're not sure what to buy, watch the videos they have to make sure you get the correct one for your needs. We saved a HUGE amount of money over what the auto dealer quoted us for the exact same thing, and as a bonus, the how-to videos made it really easy to attach it ourselves. Yes, it really -is- that easy.
Anna
5/20/2019
We are very happy with our trailer hitch, and all the accoutrements that we purchased with it. Your videos were enormously helpful, the hitch went on easily with a bit of help from our teenage daughter to lift it up into place, and we recommend your business to friends when they express an interest in getting a camper.
I appreciate the easy ordering process and fast shipping! The harness works perfectly:)
It’s perfect and just what i needed. And super quick delivery on it.
2012 highlander had factory tow package. This harness mounted in fine to the factory plug in the back but there was no power at the connector. After some research I found that I still needed to go to the dealer and purchase a $100 towing converter that plugs in under the dash on the left side.
Jenny N.
10/27/2021
It sounds like your 2012 Toyota Highlander didnt come with the factory tow package and that you would have needed part # C56217. It includes the additional wiring component that installs under the dash to complete towing circuit.
Great service
Great ordering and quick delivery. Product was just as described and super easy to install. Just a little disapoited in the wireharness that was available as it does not have a bracket to clamp to the hitch and will need to be replpaced. Make sure to order the correct one.
The product is amazing. I will say that the company that installed the hitch did not hook the lights up correctly and they trailer lights still do not work. It has nothing to do with the product. I am hoping that I will be able to take it back and get it fixed next week.
parts arrived ahead of schedule and in good order. Had it installed locally by a professional and am very pleased with the results, thank you! Order included: Draw Tite hitch receiver / tongue kit with 2 drop/raise sizes & 2 ball sizes / wiring, wire tester / for 2008 Highlander.
Fit prefect.
Was easy to install. The original was broken from someone hitting it. The replacement is not mounted on the outside but left in the storage space until needed.
Tk
6/13/2022
Still working. I installed it and store in the area under the back mat. I believe thats the best because its not exposed to the weather. Id buy it again if needed as I saved a ton of $$ by doing it myself.
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Brooke M.
4/7/2025
Fair enough, Mr. Bandanna :)