Arrives before Christmas To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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The Curt T-Connector Vehicle Wiring Harness is your answer to quick and easy trailer connections. With its plug-and-play design, installation is a breeze—no cutting or splicing of wires required. Just connect it to your vehicle’s existing wiring system located in the rear cargo area, making it the perfect solution for those looking to avoid the hassle of complex wiring tasks.
What sets this wiring harness apart is its custom-fit feature. It's designed specifically to maintain the original wiring integrity of your vehicle, ensuring that all connections fit seamlessly without overloading your vehicle’s electrical system. This custom design not only matches but enhances the electrical configuration of your trailer lights for consistent, reliable performance across all road conditions.
Handle various trailers with ease thanks to the Curt T-Connector's compatibility with 5-pole, 6-pole, and 7-pole adapters (though these are sold separately). This versatility means you can switch trailers effortlessly, whether you’re hauling a small utility trailer or a larger camper, making your towing capabilities as versatile as your lifestyle demands.
This wiring harness includes a powered converter that not only reduces strain on your vehicle’s wiring but also maximizes trailer light yield and intensity, ensuring top-notch illumination with minimal heat production. It’s constructed using surface-mount technology (SMT) to offer dependable performance even in the most challenging road conditions, keeping you safer on your towing adventures.
Designed with durably constructed components, this wiring harness stands up to the rigors of rough road conditions. Whether it’s dirt trails or bumpy urban streets, rest assured that this harness is built to last and won't let you down when it matters most.
No more worrying about dirt and moisture affecting your connections. The integrated dust cap keeps your 4-way flat connector clean and protected when not in use, enhancing the longevity and reliability of your towing connections.
California residents: click here
I was able to replace an aged five-pin connector on a boat trailer I just purchased with this harness. It was quick and easy and a solid value priced product. Super happy with my purchase!
I used this harness to adapt the existing trailer wiring on my 2023 Hyundai Tucson Hybrid Limited to my trailer. The Tucson Limited has the tow package, which provides the manufacturer's wiring harness routed to the rear underside of the vehicle. I simply plugged this T-Connector in to the existing Tucson harness, then routed/fastened the connector near the trailer hitch. It worked perfectly and was very easy to install in a few minutes. I could have installed in less than 5 minutes, but I tried several different routing methods to make it the neatest possible installation. THIS is how all aftermarket equipment should work!
This harness is not compatible with the 2025 Hyundai Santa Fe although it is recommended when purchasing a hitch. I didn’t realize it until after I checked out, tried to cancel the order but it was already processed. Was able to return but had to pay for return shipping. Partially my fault for not verifying compatibility, partially e-trailer’s fault for recommending on check out. Had to buy the OEM harness which you have to get from Hyundai directly.
Mike L.
9/30/2025
We show the # CU94FR as a fit up until the 2024 model year. For a 2025, you'll want to use the # C48RV which will be available very soon....
This wiring was ridiculously easy to install. Etrailer videos always helpful. I have purchased 2 hitches and wiring harnesses from etrailer and have always been 100% happy!
James
7/30/2025
Perfect!
Lazer S.
7/30/2025
Install was straight forward. Took me a little over 1 hour to install the hitch and wiring harness. Price was great. The dealer wanted 1100 dollars.etrailer was 300 dollars.
Johnny
6/4/2025
Hitch is working as designed. No problems at all.
I was able on Hyundai site to find out that all 2021-2023 Santa Fe vehicles have the trailer tow package. If in doubt just check your engine fuse panel as there is a 30 amp trailer fuse installed. On my PHEV my son was able to reach into the panel and plug the etrailer wire loom into the towing OEM connection. Installed the wire loom in 15 minutes. Was easier than the etrailer video showed.
I'm sure glad I bought the wireing harness along with the trailer hitch. It fit perfectly and made the hook-up a lot easier. A year later now, lots of use, and it still works perfectly.
Phenomenally simple and easy to install on my 2024 Hyundai Tucson SEL. The entire installation took exactly 6 minutes and 32 seconds. Yes, I timed it. The kit comes with everything you need for a quick installation. The unit worked perfectly when tested on my trailer. I’ve always trusted Curt items and this is no exception.
James
6/1/2025
Still going strong after a year. This is a far better application than factory installed parts. I’ve had both and will continue to use Curt instead of ordering factory parts. Incidentally, the part and wiring harness and 14 the price of the factory set and twice the quality.
Kate F.
6/2/2025
It was a plug and play.
Brooke M.
6/23/2025
Yay! Glad to hear that, Angel -- thanks for sharing the photo :) Where you headed now that you're hitched and wired up?
Worked perfectly and was the correct fit for my vehicle. Wire harness matched right up with the OEM wire harness.
YouTube makes it look real easy to install, and it is, provided your attachment nuts rent full of rust, and you have a vehicle lift. Doing it with car on ramps and on your back is more difficult but doable. Follow the instructions and the installation is straight forward. The same applies with the wiring harness. In general, a very good product, well built and rugged. I’m by with it.
Super simple plug and Play. Loved it. Didn't have to run wires all the way up to the front of the car. The plug and Play feature was excellent
The instructions could have been better. My 2023 hyundai hybrid premium required an inline 15 amp fuse to work and the instructions did not explain this.
etrailer makes the install flawless because of support before and after the sale. The videos that cover the install made it so easy. Previously I purchased the Curt III hitch and the video was perfect.
Great company and very competitive pricing
Tip I put the wiring harness in 1/2” tubing along the route to protect from any chafing and used tie wrap to secure. I used JB Weld yo epoxy the bracket to hitch as there were no holes to secure bracket. Solid.
This plug and play harness is So Easy to install
Love it and well worth the money spent.
Thanks to Joanne K at etrailer who helped me with my purchase over the phone. I also purchased the connector and a Curt no show hitch from her.
All were great.
This was a plug and play installation, very straight forward and easy. etrailer does a good job matching you up with what fits your vehicle. This is my second time buying from them and both experiences were very good, highly recommend.
Gwendolyn Y.
4/25/2025
Plug and play then off to adventure! What are you going to be towing, James?
Shipped the wrong part. I sent a screen shot of the part on your website stating the part would fit my vehicle. It did not. Was told I could return it for a fee even though it was your mistake. Return shipping label was never sent. Very disappointed.
Both items work great and easy to install following the videos provided on etrailer
Easy installation using factory mounting points. Doesn't catch on fire like factory Hyundai trailer wiring harness. Does exactly what it should.
Gwendolyn Y.
3/7/2025
Glad you went a year fire free!
Your company is great.... However, UPS delivered the packaged looking like this. Good thing nothing was missing or damaged See PICS
Brooke M.
2/17/2025
Oh my good grief...! Gotta meet that staple quota for the month, I guess...I am glad to know everything made it ok, though :)
Hitch was a good fit and easy installation. Wiring kit the same. All working well on my 2024 Hyundai Santa Cruz SEL 2WD.
Brooke M.
4/3/2025
That's great, Robert! So why the new harness? Do you have a new trailer to tow?
Purchased curt hitch for my 2024 Tucson along with the curt wiring harness. Easy to install. No issues with fit. Wiring harness plugged right in and works fine. Excellent products.
After following directions that were supplied it did not work the trailer lights. Eliminated the module and works fine now
They sent the wrong part. Tried to get it resent. The ball got dropped and never heard anything else. So it's never been corrected.
Super easy plug and play installation.
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Craig
8/25/2025
Still happy with this harness and have not had any issues works great.