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  4. Trailer Hitch Wiring
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Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number CU94FR or order online at Free expert support on all CURT products. Guaranteed Lowest Price and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (271)
  • Q & A (0)
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  • Why etrailer?

CURT Custom Fit Vehicle Wiring

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • Powered Converter
  • CURT

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.


  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Tow harness with 4-way connector plugs into connection point in rear cargo area
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading vehicle's electrical system
  • Constructed using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector


  • Maximum amperage:
    • Stop/turn lights: 5 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


This custom-fit T-connector plugs into your vehicle's wiring harness. The connection point for the 4-way tow harness is located behind the interior trim panel in your rear cargo area. Once you've plugged in the converter, insert the included 10-amp fuse into the integrated fuse holder.

Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your cargo area.

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.

56420 CURT T-Connector - Surface Mount Technology - 4 Wire

Item # CU94FR

Installation Details CU94FR Installation instructions

This Product Fits The Following Vehicles

Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - CU94FR

Average Customer Rating:  4.9 out of 5 stars   (271 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.


I watched the video prior to ordering, and it was excellent. When my hitch and wiring harness came it all went on super easily. Thirty minutes from start to finish, everything fit perfectly, and the installation is fantastic. I think it looks better than the OEM option, since the frame is all hidden and the only visible thing is the receiver itself. Bonus points for the free shipping and quick delivery.


Not a bad product overall but external electrical connections like this should contain a small tube of protective lubricant or be pre lubed. With this you need your own.

You are right. It is recommended to use a bit of dielectric grease like item # 11755
Dielectric Grease for Electrical Connectors, 2 oz.
to protect your connections.
-- Etrailer Expert Sierra K - 05/17/2022


This product installed easily, and I highly recommend getting a harness with a fuse! Quality product the online ordering was easy.

2020 Hyundai Palisade

This is the second etrailer hitch and wiring harness I’ve installed and it was simple to do. From the ordering process through their easy to use website to their installation videos it had been a great experience and I recommend them whenever someone asks me about getting a hitch for their vehicle.

2021 Hyundai Palisade

Perfect fit for wiring harness. Easy to install and came with enough zip ties to hang the wiring properly. Only minor down side was that the double-sided tape had dried out, no big deal.

I recommend using your own double sided tape to make sure that the harness stays in place.
-- Etrailer Expert Jenny N - 12/21/2021

2022 Hyundai Santa Fe

Very poorly packed for shipping. The box too big for the Curt T-Connector. They have to improve on packaging.


I had very good service and help me with any questions I needed answer and the people I talk to were very pleasant I will do business with them again when the time comes


love my hitch and wiring from etrailer


Great fit, and shorter than the other Tekonsha option (and cheaper too), and it was exactly the needed size, so very happy with it.


Plug and play with the manufacturer provided plug on our Kia. No messing around cutting wires like the old days. Works perfect. Shipped fast from trailer. Highly recommend.


Easy installation


Very easy to install. I'd probably give 5 stars, but honestly, I haven't plugged it into a trailer yet so...


Installed on a 2020 Sante Fe SEL in my garage, did not lift the vehicle, so a little tight. I also wired for trailer lights and that too was simple. Looks good, should work perfectly. Will be using to pull utility trailer, bike rack, and carrier. Harness was easy to install, used zip ties to secure to vehicle. Completely out of sight.

2022 Hyundai Santa Fe

Missing fuse and screw. Seems ok but haven’t installed yet. etrailer super friendly and courteous. No complaints from company perspective

I will have our customer service team reach out to you.
-- Etrailer Expert Jenny N - 01/13/2022


This is a great product, well made and easy to install. The plug & play means no wires to cut or splice for a true connection. etrailer customer service was great with fast shipping and follow up.

2015 Hyundai Tucson

Just installed the wiring harness connection. This was on a 2022 Hyundai Tucson hybrid model. The connection is located just under the driver side rear bumper. There are some wiring with blue tape. Once you cut the tape, the connection will fall down. Remove the dummy cap on the connection, and plug in the new wiring harness. Then install the 15 amp fuse provided. Then I use the double sided tape to mount the box onto the frame. Right next to where the trailer hitch installs on the frame. Then run the wiring a short distance, using zip ties along the way. And let it hang whatever is most convenient. I tied it up right around with a 2 inch opening is on the receiver. There is a quick video on each trailer, but it is for a Hyundai palisade. The Tucson hybrid model is the exact same connection. It's a must watch before the installation. It will make everything much easier. It took me about 30 minutes lying on my back. I also used connection grease I got from AutoZone to keep out any moisture. Don't plan on using it much. Then tapes all connections with black electrical tape to keep out elements. I'm on the northeast.

2022 Hyundai Santa Cruz

Went together easily but definitely need two people to lift it up to mount. Shipping was fast and communications were perfect with this company. I couldn't be happier.


Excellent product, easy to install. Customer support was just a phone call and a moment from answering any questions I may have had. Would highly recommend.

2022 Hyundai Santa Cruz

Fit my vehicle perfectly and was quite easy to install. Shipping was fast and everything was received in great condition.


Easy installation and great online supp ort


Great quick and easy plug-and-play solution to wiring my new 2022 Hyundai Santa Cruz. Manufacturers appear to be helping consumers by pre-wiring most of their models to accept these after-market wiring harnesses.


Quick easy installation that connected right to existing connection.


Purchased a Draw tite hitch & wiring from etrailer for my sons Palisade. We watched the ‘how to’ video before starting the install. Great info gots us going in right direction from the start. As described start to finish in less than 60 mins!

Both hitch & wiring fit perfectly. We did have an advantage using my 36 in hydraulic scissor lift. Per the video, spray rubber exhaust hangers with silicon spray & they pop off with little effort. We used a jack stand to prop up exhaust while installing the hitch. Only small glitch was reinstalling the drivers side underbody trim. The hitch bolt created a interference to lining up the 14 mm bolt. A small clip off of the plastic underbody trim gave clearance & we finished the job.

First time buying from etrailer but definitely not the last! Great people to do business with

2022 Hyundai Palisade

This kit makes everything fool proof. The wiring is PLUG & PLAY. No cutting or crimping needed, and the built in Logic Module takes all of the guess work out of the task. I'm very pleased.

2022 Hyundai Tucson

Their website is well laid out and easy to find the product that I required for the vehicle that I own. The product was delivered to Canada via USPS. The parcel had been packaged in a secure cardboard box and inside the box was the product, sealed in a see through container. I would definitely shop at etrailer in the future. Staff were friendly and the product videos will make the assembly quite easy. Thanks from Canada

Show More Reviews

See what our Experts say about this CURT Custom Fit Vehicle Wiring

  • Trailer Wiring Harness that Fits 2021 Kia Telluride
    Yes the Curt trailer wiring harness part # CU94FR does fit the 2021 Kia Telluride.
    view full answer...
  • Recommended Trailer Wiring Harness for a 2020 Hyundai Santa Fe
    The Curt T-Connector Vehicle Wiring Harness part # CU94FR is a great plug-in-play option for a 2020 Hyundai Santa Fe and what I recommend using. I have attached an install video below for you as well.
    view full answer...
  • Wiring Harness For 2021 Hyundai Santa Fe
    We have the wiring harness you need! Here is the 4-Pole Curt Connector # CU94FR. This will provide power to your trailer so it'll have lights and blinkers that will work. It installs just by plugging into your current trailer wiring harness. I've included some videos for you to check out so you can get an idea of how it installs!
    view full answer...
  • Correct Trailer Wiring Harness for 2022 Hyundai Tucson
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # CU94FR is a confirmed fit for a 2022 Hyundai Tucson per the manufacturer. These are tested on the vehicle for function prior to releasing fit. There would be no function loss with the harness, it's a plug-in-play installation.
    view full answer...
  • Does Curt Trailer Wiring for 2022 Hyundai Tucson Require Running Wires to Vehicle Interior
    You actually do not have to push any of the wiring of the Curt trailer wiring harness # CU94FR through the interior of the vehicle. If you watch the install video I attached you can see that it stays outside of the vehicle.
    view full answer...
  • Trailer Hitch Fit for 2019 Hyundai Santa Fe SEL Plus
    We do have a trailer hitch receiver that is a perfect fit for your 2019 Hyundai Santa Fe SEL Plus, but the hitch you mentioned is not a fit. What you need instead is the Draw-Tite Trailer Hitch Receiver # 75908. This is the correct fit for your Santa Fe, and one person can absolutely install this hitch; I have in fact linked a video below showing it being installed on a '19 Santa Fe for you to check out. Since you plan on towing, if you need a wiring harness as well to power your trailer...
    view full answer...
  • What Wiring do you Recommend for my 2020 Hyundai Palisade
    For your 2020 Hyundai Palisade we have a couple of wiring options. These will both offer a 4 way flat trailer connector. They are almost identical, they install the same, have the same power output and are designed to protect your vehicle should there be any shorts on the trailer. Of the two I recommend the Tekonsha. They always seem to be the most dependable when it comes to custom fit wiring for passenger vehicles. I'v linked both for you to check out. As well as an installation video. Curt...
    view full answer...
  • Comparing the Tekonsha and Curt Trailer Wiring Harnesses for a 2020 Hyundai Palisade
    The trailer wiring harness I recommend for a 2020 Hyundai Palisade is the T-One Vehicle Wiring Harness part # 118784 over the Curt T-Connector Vehicle Wiring Harness part # CU94FR. The main reason for this is that the converter box is physically smaller therefore easier to mount. Furthermore, the T-One Vehicle Wiring Harness has been more reliable than the Curt T-Connector Vehicle Wiring Harness historically speaking.
    view full answer...
  • Does Aftermarket Trailer Wiring for 2020 Hyundai Santa Fe Plug into Factory Port
    The trailer wiring harnesses we offer for your 2020 Hyundai Santa Fe like the Curt # CU94FR or the Tekonsha part # 118784 plug into ports on the vehicle that are on all versions of the vehicle so either of these kits will fit your vehicle. I would go with the Tekonsha though as we have the best luck with their converters.
    view full answer...
  • Parts Needed To Install Trailer Wiring 2022 Hyundai Santa Fe
    What you'll need is the 4-way kit part # CU94FR and then to convert it to a 7-way all you'd need is the part # 37185 which will bolt right up to the 7-way bracket your vehicle has currently.
    view full answer...
    Image 1 for Image 2 for
  • Recommended 4-Way Wiring Harness for 2022 Hyundai Palisade
    For your 2022 Hyundai Palisade I recommend the Tekonsha T-One Vehicle Wiring Harness # 118784. This will plug directly into the plug you saw under your vehicle and provide you with a 4-way connection at the back to power the lights on your trailer. It also has a ModuLite converter which helps reduce strain on your wiring system. I have attached an installation video on a 2021 Hyundai Palisade for your reference.
    view full answer...
  • What is Best Trailer Wiring Harness for 2022 Hyundai Palisade Curt or Tekonsha
    For your 2022 Hyundai Palisade the best trailer wiring option is the Tekonsha part # 118784 which has the most reliable converter box and a very easy install. I attached an install video for this kit on a similar 21' Palisade for you to check out as well.
    view full answer...
  • 2022 Hyundai Palisade Correct 4-Way Wiring Harness Kit
    The T-One Vehicle Wiring Harness # 118784 will work just fine with your 2022 Hyundai Palisade! Tekonsha is really good about calling out differences in fits like that and this harness has fit the last couple of model years of the Palisade without any issues. Attached is an installation video of this wiring kit on a 2021 Palisade that you can check out. If you're still unsure you can check the differences people are calling out elsewhere to this video. If you are seeing a few different...
    view full answer...
  • Comparison of Wiring Harnesses for 4-Pole Flat Trailer Connector on 2022 Hyundai Tucson
    The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, # 118784 and the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, # CU94FR are both confirmed fit for your 2022 Hyundai Tucson. They are simply products from two different manufacturers that serve the same purpose of quickly and easily installing a 4-way trailer connector on your Hyundai Tucson. Both are quality built products and will install without the need to splice wires, they install...
    view full answer...
  • Hitch and Trailer Wiring Harness for 2022 Hyundai Tucson
    We do offer a hitch for the 2022 Hyundai Tucson, part # C94WR which is sold separately from the # CU94FR trailer wiring harness.
    view full answer...
  • Does Curt Wiring Harness CU94FR Fit 2022 Hyundai Tucson Hybrid
    I checked with Curt for you and can verify that the wiring harness you asked about does indeed fit your hybrid model of 2022 Hyundai Tucson; the correct part is the following: - Curt T-Connector Vehicle Wiring Harness # CU94FR
    view full answer...
  • Trailer Wiring Harness For 2022 Kia Sorento X-Line SX-Prestige
    The correct trailer wiring harness for your 2022 Kia Sorento X-Line SX-Prestige is going to depend on if you have the factory tow package or not. I have verified with the manufacturers the correct fits for your Sorento SX-Prestige, both with or without the tow package. - WITH Factory Tow Package: Curt T-Connector Vehicle Wiring Harness # CU94FR - WITHOUT Factory Tow Package: T-One Vehicle Wiring Harness # TK26FR
    view full answer...
  • Recommended Curt Trailer Hitch Receiver for 2020 Hyundai Palisade
    On your 2020 Hyundai Palisade, the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C13427 is the custom fit. There is not any cutting or altering of your vehicle required when installing this hitch receiver. I've attached a video of the installation to assist. If you want to add the wiring harness, I recommend the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # CU94FR.
    view full answer...
  • How to Install Curt 56420 Trailer Wiring Harness on 2022 Hyundai Tucson
    According to the linked installation instructions, the shroud located just rearward of the driver's side rear wheel needs to be temporarily removed to access the factory tow package wiring connector. I've provided a photo showing the panel in question. The panel is held in place with 3 push fasteners and 2 14mm bolts. You'll see the factory connector, simply remove the protective cover and plug in the # CU94FR. The 4 pole connector would then be routed over to the hitch receiver, and the...
    view full answer...
    Image 1 for
  • Does Curt Trailer Hitch Receiver Fit 2022 Hyundai Palisade Calligraphy
    Yes it will! I went ahead and verified with the manufacturer for you that the Curt hitch you asked about is confirmed to fit a 2022 Hyundai Palisade: - Curt Trailer Hitch Receiver # C13427 This will give your Palisade a hitch with a concealed crosstube so it will keep its streamlined appearance, which is particularly nice for the luxury Calligraphy package on your Hyundai. The only other thing you may need, if you plan on doing some towing with this hitch, is a wiring harness, with the...
    view full answer...
  • Can Hitch/Trailer Wiring Installation on 2019 Hyundai Santa Fe Cause Back Up Camera to Malfunction
    I spoke with the folks at Curt about the issue you're experiencing. My contact in the technical services department tells me that since the proximity sensors are still working and since the camera is still functional, that it's extremely unlikely that the hitch or wiring harness installation caused the lines to disappear from the camera display. If the # CU94FR wiring or the # e98843 hitch was interfering somehow, those functions would very likely not work at all. Some of the back up camera...
    view full answer...
    Image 1 for
  • Is There a Wiring Harness Available For a 2022 Hyundai Santa Cruz
    I spoke to Curt and their T-Connector # CU94FR will fit your 2022 Hyundai Santa Cruz. However, your Santa Cruz must have the factory towing package from Hyundai. There currently is not a harness for the non-towing package vehicles as of yet. I can also confirm that the Curt Hitch # C23WR is also a confirmed fit for your Santa Cruz and will be a direct bolt on application,.
    view full answer...
  • Will a Draw-Tite Hitch for 2020 Kia Telluride Fit with 20 Spare Tire and What Is Height From Ground
    I'll start off by saying that the two stock tire sizes on the 2020 Kia Telluride are 245/60r18 and 245/50r20- which are both 29.6" in total diameter- so the hitch is not going to interfere with your spare tire as long as it's the 245/50r20 tire and not larger. When it comes to the height of the hitch from the ground, the hitches that we've installed on the 2020 Kia Telluride like the Draw-Tite # DR24FR are coming in around 15-1/2" from the top of the receiver to the ground. This measurement...
    view full answer...
    Image 1 for

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Info for this part was:

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