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Adding trailer wiring can be a hassle if you have to trace wires or make your own connections. The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package takes that out of the equation. It plugs right into the existing factory ports behind the rear bumper and cargo panel. No wire cutting, no splicing—just plug it in and it’s ready to go.
This harness gives you a standard 4-pole flat trailer connector, providing running light, turn signal, and brake light functions. It’s the basic connection that most small and mid-size trailers need, and it’s set up so you can hook up and tow with confidence.
Vehicles often have separate circuits for turn and brake lights, while most trailers combine them. The included powered converter fixes that by combining the signals so your trailer lights work properly every time. It also safeguards the vehicle’s wiring from overloads when connecting to the trailer.
Designed for vehicles equipped with a factory tow package, this harness uses existing connectors both behind the bumper and in the rear cargo area. The result is a neat, hidden setup with wiring that stays tucked away and protected from the elements.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
Very easy installation. And even though it was simple, when I needed help Jena from customer service was very technologically knowledgeable and helpful. My experience was excellent and I will definitely shop here again!
I'm a 30 year old woman and figured I could follow the directions and install it by myself. The install was easy, but I ended up having to ask my father for help. There were only 2 issues that I had. First, I could not get the cover of the gray trailer wiring harness connecter off that is located under the vehicle. I guess I wasn't strong enough to pull it off, but my dad was able to get it off. The second issue I had was that the directions did not say to install the red 10 amp fuse into the red box located on the CURT wiring connector (or I missed that step). So I had everything hooked up correctly, but the lights wouldn't work because that fuse was not put in. Once my dad came out to figure out what was wrong, he saw it right a way. If the directions had said to put that red fuse there, I would have been able to do that.
Overall, I highly recommend this product. I saved a lot of money by doing it myself with this part, rather than taking it to the dealership to install it.
It took me less than 30 minutes with also having to chase a 20 month old around our yard. Also, highly recommend Etrailer. Their 110% price matched saved me even more. Thank you!
Prompt delivery
excellent product , 4 pin trailer wire harness for 2015 Honda pilot was so easy to install , took maybe 10 minutes , every thing you need comes with the kit and is fail safe. it works grate and I know that there is no better product out there ,just as good as Honda's and cost less. the only thing I could add is the plug on the pilot under the back end has a button on the top and on the bottom that need to be pushed and the plug should come right out
Very good quality product. Easy to install. Good install instructions provided. All items needed for successful install was included. Installed on a 2015 Honda Pilot.
Easy-Peasy!
Out of the box to having trailer lights in less than 20 minutes!
Perfect......
My wiring harness was delivered in short order and fit and functions perfectly.
Thanks etrailer.
Richard W.
3/20/2018
After one year of service my wiring harness is still working perfectly.
product seems solid. Instructions were okay. Did not mention to install fuse in control wiring even though fuse was included.
Not happy that is did not come with a bracket to mount the flat four connector.
Victoria B.
10/25/2019
Because 4-Pole installation can vary, Curt does not include a mounting bracket with most of their wiring harnesses. Curt does offer a mounting bracket with part # C58303.
Helpful Links
Plug and play! The hardest part was removing that darn cap on the harness under the rear bumper. Both sides need to be pushed in including the side that connected the plug to the body. I broke mine prying it off. Make sure you get a small flat head and pry under the blue piece that goes into the body of the car.
Steve S.
12/18/2017
It worked great! So great that I have reordered a new one to accept a larger trailer.
Exactly as described...well packed and lightning fast shipment. Installed in 30 mins and looks like a good quality harness. The instructions made it easy...this was a fraction of what the dealership wanted to charge for the factory version.
Chris K.
11/30/2018
Working flawlessly!
Perfect for 2015 Honda pilot. Connectors difficult to connect but eventually mated up..
I received my part on time , delivery schedule was telling me that. Then I’m very happy to share my happiness with you! Thank you for the fastest delivery! I already set-up the part on my Honda Pilot and everything run well! Once again thank you.
The wiring harness was exactly what I needed for my 2015 Honda Pilot. The instructions were quite easy to follow step by step, and I had no issues what so ever in the installation. It took approximately less than 30 minutes to install, and when I hooked it up to my boat trailer connector, the parking, brakes and turn signal lights worked perfectly. I highly recommend this do-it-yourself product to anyone needing to save a few dollars out of pocket expense, rather than having the dealer install it for you. The dealer I purchased the vehicle from, quoted me a price of approximately $230.00 to 250.00 to have it installed by them. I saved almost $200.00 by installing the harness myself! Thank you etrailer.com! You saved me a few hard earned bucks!
Richie B.
2/11/2017
It s been about a year, and the harness is still working awesomely! I have zero complaints! Thanks e-trailer.com!
Fit perfectly, no issues.
Easy hook up, no problem. Works great.
Works great Gray connector on vehicle was a bear to get factory cover off
The tow kit worked great. Just had to plug it in since my Pilot came with a tow package. Everything looked of high quality.
Not only did the part arrive only 16 hours after I ordered it (with the most expedited shipping possible), but the parts worked like a charm for my 2012 Honda Pilot. I used a variety of YouTube videos to help with the instillation. Ensure to input the red fuse before installing the first part of the process!
Quick delivery. All of the parts fitted perfectly.
on time and is great thanks
It's a trailer hitch harness....the lights work so I guess all is good
After a year of use, I've been happy with this connector.
Installed it in a 2012 Honda Pilot EX 2wd and just finished a cross-country trip of about 4k miles using it.
So far, it has worked flawlessly. Mainly used with a small trailer (~1k lbs capacity) but have also done short tows (2-3 miles) with a 10ft enclosed trailer.
Gwendolyn Y.
7/2/2025
That sounds like an awesome trip you had! What areas/places did you travel through?
Arrived quickly and with easy to follow instructions. Reached out and received support from William. Thank you!
Success. I saved $220 over local Honda dealer installation. A few hacks: use only one hand to attach connector inside the back fuse box; it makes it hard to snap them together but it’s the only way. Two hands don’t fit. And don’t forget to insert the smaller fuse into the wire before before closing back fuse box. But I did this right and all lamp features work.
Bob G.
3/17/2020
Perfectly. My portable trailer lights work correctly one year after I installed the wiring harness
Hardest part of the install was removing Honda's dust cap behind the rear bumper. Everything else was smooth and easy as can be.
Info for this part was:
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Wilder F.
7/8/2016
Still very pleased!