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.
Wiring a trailer usually means tapping into factory wires, but this harness skips all that. The Curt T-Connector plugs directly into existing tail light connectors to create a 4-pole flat trailer plug. No splicing or guessing which wire does what—just click it in place and it’s ready to use.
The built-in powered converter keeps the vehicle’s electrical system isolated from the trailer wiring. That means no overloading the factory circuits when you hook up trailer lights. It delivers steady, clean power for running lights, turn signals, and brake lights every time you tow.
This harness routes through existing factory grommets and trim, so the wiring stays protected and out of sight. No drilling or exposed sections hanging under the bumper. The result is a neat, factory-style install that looks like it came that way from new.
The 4-pole flat connector provides all the essential light functions—running, turn, and brake signals—so your trailer stays visible and legal on the road. It’s the common setup for small utility trailers, boat trailers, or campers with standard lighting systems.
Customer Satisfaction Score:
93% were satisfied with this product
7% of customers were not satisfied
Ratings & Reviews
Perfect
Perfect fit on 2013 buik lacrosse
Good Quality and easy to install
Was easy to install and worked like a c harm
Works great,easy to install.
Easy hook up had delivered to another state to use in moving across country. Flew in hooked up and worked perfectly.
installation was very easy instruction very clear.
This product was of excellent quality.
etrailer service and speedy replies are the beat of all!
E-trailer hitches come fast! And at a great price!!
I was able to install this myself due to simple, clear instructions. It's components are made up of quality materials, are well packaged, and one year later it still functions as intended.
I have no problem endorsing this and would definitely buy again. It turned a headache into a manageable task!
Received hitch and wire harness a day ahead of schedule, packed in same box and arrived undamaged.
Outstanding, the ease of installing and adaptation to design of car was superb, a true credit to your Engineering design staff. My son and I order all of our needs from etrailer, we have never had any issues and the designs are outstanding.
The product for the LaCross came complete with fused block for power to the turn signal module. Our trailer (6 x 8) is equipped with LED lighting for better function and visibility.
Highly recommend the product, but the service and follow up from etrailer is the best on the web.
Thank you!
Great product. I installed this on a 2015 Buick Lacrosse (Dual exhaust). The dual exhaust did not effect installation. The reason I gave 4 stars is because it was very very very hard to feed the connector that plugs into the rear car lights between the car and the body. I had to pry the body of the car away with a screw driver to allow enough room to sneak the connector up. Just pointing it out, does not make the installation immpossible, just a bit harder. I recommend this product for a 2015 Buick Lacrosse because that is the only vehicle installation I have done.
Worked as designed. I do a lot of my clients work with parts and supplies from etrailer. Great company and great products. Pay attention to the install video. They warn you about how tight the application is fishing up the harness. The video gave me the heads up and the trick to make it work. Thanks again.
The trailer hitch and electrical kit I ordered arrived in a timely manner. The install was pretty easy and although I have not used it, seems to be a great buy. Thank you for the instructional videos!
I am very satisfied with my trailer hitch and wiring purchased from etrailer for my 2011 Buick LaCrosse.
Too complicated. A wiring harness that links to a rear tail light is much simpler. Aside from that the wiring works as it's supposed to, but the connector is stored in the trunk of the car until needed.
The Cort hitch works fine on the Buick Lacrosse, but will drag when entering or leaving a steep driveway. I don't think Buick intended for this car to be fitted with a hitch.
Went together well. Running the power from the battery was a pain. If I had a lift, it would have been easier.
Trailer wiring installed with ease and worked as expected.
The hitch was installed in the stated amount of time and operated as designed. Hauled lite weight boat trailer 170 miles with out a problem. Lighting worked as intended.
Fred L.
3/28/2016
it has performed as expected each time that I have used it. Easy install hitch and wiring.
I think the hitch receiver and the pigtail wiring are both of high quality, but you really need to package better for shipping. The metal parts were not secured in the box and after one end of the box and then the other a large hole appeared in one end and could have easily lost parts,especially the bag of bolts and nuts.
Info for this part was:
At etrailer 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.
Guitardan
5/27/2025
It working well.