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Tired of complex wiring setups for your trailer lights? The Curt T-Connector Vehicle Wiring Harness is designed for easy installation with no cutting, splicing, or tapping of wires required. Just plug it directly into your OEM tow package port and you're ready to go, making it as simple as connecting a household plug.
Designed specifically for vehicles with a factory tow package, this 4-pole flat trailer connector provides reliable power to your trailer’s signal lights. Custom-fit for a perfect match, it ensures seamless operation and precise compatibility with your Buick Envision, making it ideal for all towing needs.
Keep your connections clean and dry with the included dust cap for the 4-way flat connector. To further prevent corrosion, it’s recommended to apply a small amount of grease on all electrical connections. This makes the Curt Harness not only practical but also a long-lasting solution.
Designed to support up to 7.5 amps per circuit for both stop/turn lights and tail lights, the Curt T-Connector harness manages high-power demands with ease. This impressive amperage support ensures your trailer lighting system operates effectively, even under demanding conditions.
With the thoughtfully designed installation that plugs into your vehicle's factory harness located behind the rear bumper, the connector can be conveniently stowed away in an out-of-the-way location within the trunk. This allows for a tidy setup that doesn’t interfere with the trunk’s usable space.
Enhance your towing experience with flawless signal transmission every time you hit the road. Specifically engineered to work with factory tow packages, this keeps your trailer lights in sync with your vehicle, providing peace of mind and reliable functionality during all your trips.
This custom-fit T-connector plugs into your vehicle's factory tow package wiring harness, which is located behind the rear bumper. Once you've plugged in the tow harness, insert the 2 relays into the fuse panel.
Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your trunk.
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.
California residents: click here
Average Customer Rating: 4.9 out of 5 stars (92 Customer Reviews)
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - no cutting, splicing or tapping required.This is my thired purchase of etrailer hitch. My current car is 2019 Buick Envision Crossover SUV. Unlike my previous cars, today's cars leave little room to mount a trailer hitch. However , etrailer has done a great job of making sure the hitch fits under the bumper cover and is barely visable with the flat black paint. Installation was just a shown on factory videos, however, could have used a second pair of hands during installation, but it was still not that bad for a 80 year old to do the installation.
No cutting, no guessing, no rewiring! What more can you ask for? My only input would be clarify that after “releasing” the red lock that you have to push down to separate the plug from the harness. I struggled with that for a minute or two longer than I would like to admit.
Worked perfectly for my 2020 Buick envision. Quick install in 10 minutes - most of which was removing the cover from my vehicle. Fast and free shipping when ordering it with a hitch. Would definitely buy again.
Couldn't be any easier. Video works gre at
Quick and easy install product showed up on time and in good condition
This was a very easy project to put to get her and be ready for boating season. 4 bolts and the hitch was installed. The tutorial videos was a big help to make the install go without any issues.
The wiring harness install was very easy, and the operational test was successful! Kudos to your design engineers for creating such a simple process for the "do-it-yourself-er".
Installation is okay but not fond of relay clicking noise every time you apply brakes etc.
I struggled with the dust cover not realizing that I needed to squeeze the clip after releasing the red tab on the dust cover Just a short session with you tube got me back on track
Hitch went on easy. Wiring plugged in and works fine. Only issue I have is the relays you plug into the fuse box make a clicking noise when the brakes are applied or trunk signals are on.
Everything went exactly as expected. Took about an hour to install the hitch and wiring. I am pleased with this product.
Called E-trailer since the harness I ordered was on backorder. Terri (E-trailer Sales) was able to identify a substitute that was in stock. It is this exceptional service and delivery follow-up that deserves a 5-star rating or more.
Wiring harness was a quick plug and go to factory wiring. Drilled small hole in one of the trunk plugs on the driver’s side. Ran the wires and tucked and tied them along the frame. Sealed around the wires in the hole I drilled. Done.
Excellent customer service that other companies can only with they had.
The videos provided with each of the items I purchased to install the hitch and wiring harness were top notch and helped make the installation a breeze.
Large selection of products with plenty of inventory options as well as very fair pricing.
The website is easily searchable & ordering is very easy.
Excellent customer service & timely when I needed some extra help. (That is a big attribute when a customer is needing more understanding of a product or has a question on shipping).
The fact that their team is fast, knowledgeable & polite is why I will refer this business to anyone. You will speak to an American when you need a question answered.
Fast shipping and their confirmation emails have added video or pdf to help you install & understand the product.
This is an excellent example of a stellar e-commerce business.
Thank you, Mindy L and the rest of the team at etrailer.com.
p.s-As a digital marketing specialist, I see lots of sites and order online almost daily-I was very impressed with the site and your team. It's not a coincidence that this was formed as a family business back in the '40s, that they saw the need for quality parts and were smart enough to see the value in local growth. They eventually targeted a larger market online and it's now the world's leading online retailer of custom-fit towing accessories.
Great job!
Hitch arrived as scheduled. It was boxed securely with no issues. Viewed install video. Installation was very easy just as the video showed. We are very pleased with the look. Same comment about the 4-pin cable install. God Bless all...
Everything went as expected. When I hooked up the trailer, the lights didn’t work. I thought I had a problem with the new wiring but turned out the ground wire on the trailer was broken. I am pleased with this product.
Partnered with Curt Cat II hitch. All very easy to install and worked perfectly. Not a single complaint. Only thing that could have been better was if it installed itself!
Great product that makes hookup foolproof. The only slowdown was getting the dust cover off the vehicle plug... it was a little contrary at first. But once off, this harness is plug and play.
Once you get the feed wire unplugged on the car, the install of the actual wire harness was very easy!! Great customer support! Thanks!
The kit is a great value and works as promised. The only reason it doesn't get five stars is that the relays provided are incredibly loud. When I am not towing, I remove the relays so that I don't need to hear the "clicks" every time I apply the breaks or use a turn signal.
Quick delivery, clear instructions, less than an hour to install. Hitch and harness.
Thanks for a great fit!
I was very pleased with the service provided. When my initial order was missing an item in the original packaging, etrailer shipped me a complete new item, not just the missing part. I will be doing business with them again in the future.
Always works when it's needed! Super videos to show you how to install. Thanks everyone at etrailer!
great site to purchase all your towing needs, combined with excellent customer service...etrailer.com always our first "go to" place :)
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