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Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Item # C56332
Our Price: $70.24
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Custom Fit Vehicle Wiring

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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs into OEM tow package wiring harness. Powered converter reduces strain on wiring system. SMT construction ensures superior performance. 1-636-245-5754 to order CURT custom fit vehicle wiring part number C56332 or order online at Free expert support on all CURT products. Great prices and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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CURT Custom Fit Vehicle Wiring - C56332

  • 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. T-connector plugs into OEM tow package wiring harness. Powered converter reduces strain on wiring system. SMT construction ensures superior performance.


  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Designed for use with a factory tow package
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection points behind rear bumper
    • Plug in T-connector
  • 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: 3 amps per circuit
    • Tail lights: 6 amps per circuit
  • Limited 1-year warranty


This custom-fit T-connector plugs into your vehicle's factory tow package wiring harness, which is located behind the rear bumper, on the driver's side. Once you've plugged in the T-connector, insert the included 10-amp fuse into the integrated fuse holder.

Once installation is complete, the 4-way connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.

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.

Powered Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.

Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of the trailer. This converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.

Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.

Curt SMT Circuit Boards

Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.

Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.

56332 CURT T-Connector - OE Replacement 4-Flat - Surface Mount Technology

Replaces Curt C56151

Installation Details C56332 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - C56332

Average Customer Rating:  4.9 out of 5 stars   (763 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs into OEM tow package wiring harness. Powered converter reduces strain on wiring system. SMT construction ensures superior performance.


excellent plug and play ! Great service . I ordered the hard wire from the battery version but saw the quick plug when I started to wire . called etrailer and they sent the factory tow package immediately . No problems.

Worked great till the car was totaled . I pulled it out and gave it to my Brother in Law for Hyundai . Works great on his .
Don H - 08/25/2023

2017 Hyundai Santa Fe

used it one time pulled my boat 2 blocks. they made the install so easy a 5 year old could do it, I traded this SUV for a truck as it is easier to haul things and with that I bought the dual 4 and 7 trailer harness with the same ease to install with no. issues

2019 Kia Sorento

Hello, I am very pleased with the ease and quality of this wiring harness. The way this is designed, with the proper connectors that connect directly to the factory conectors, was super easy to install with no splicing of wires. As for the Hitch itself, again, I am very pleased with the quiality of the unit. I would definitely recommend having 2 people for the install and proper tools, unless you have a Hitch rig to be able to do it yourself. To have a Hitch such as this installed by someone else would have cost hundreds more, I have checked.


Wiring harness does as expected and was a easy connection/install. The video where to locate factory tow plugs and how to takedown panel was a asset making for quick process. Tested all function post install everything good ready to now haul with my Sorento.

2013 Hyundai Santa Fe

i cant add to what is already known about curt products...iv'e been buying them for years...this hitch and wiring set up is top of the took me 10 min to install the hitch..that incl getting it out of the box...the wiring harness...boom plug and play baby!!

a year later..its all good...curt is made to last..
Steve - 11/24/2022

2018 Kia Sorento

Easy to install, really appreciated your instructional videos


Made the electrical side of it a snap


Exact fit and easy to install. Video instructions make it easy


Very easy to install on a 2019 Kia Sorento with the factory tow package. It plugs right into the factory connectors. For the 4 Pole Flat connector I used bracket 18144 since the wire is fairly short. It looks clean and professional. This bracket attaches directly to the no-drill bracket already present on Draw-Tite hitch receivers.

To check if your vehicle has the tow package you just need to pop out the 2 plastic rivets on the driver side panel shown in the install video and see if the 2 connectors are present. I was not able to confirm through the dealer or Kia corporate which Sorentos have the factory tow package.


Your videos made it possible. Though I must admit ….I’m not mechanically inclined… took me a bit more than half an hour to install (I lacked screwdrivers…lol).

2016 Kia Sorento

The folks at e-trailer were absolutely great in helping me identifying the proper harness for my new 2016 Sorento. Once ordered it came in a few days and installation was a breeze. The online video was great at explaining the installation process - much better than a handful of printed pages and diagrams. Once the access panel was removed and the factory caps removed from the prewired connections it was effortless - about 20 minutes start to finish. Everything worked perfect during the post installation check - Well done etrailer.

2019 Kia Sorento

Your provided instructions on finding connectors connections on our 2019 KIA Sorento, proved to be exact and very clear. The combined order of Curt Wiring Harness and Curt Trailer Hitch, was promptly and properly received today, and using your videos, both installations were accomplished with regular hobby hand tools to a perfect fit and fast results. NOW we are looking for a suitable boat to hit the water! THANKS FOR ALL YOUR GREAT HELP!

2008 Hyundai Veracruz

Part was super easy to install with the quick-connects. I especially appreciate the thorough installation videos. Wiring needs to be routed through a small hole in the rear of the bumper frame on the passenger side that is impossible to see and very difficult to feel out (2008 Hyundai Veracruz), but with patience and determination, you'll figure it out; watching the install video helps you find your bearings. I was disappointed in the shipping speed (or lack thereof rather) as it took a little over a week to arrive.

2017 Hyundai Santa Fe

The site was easy to use and search for what I wanted and needed. In addition, the DIY videos on the site gave me the confidence to complete the install. From installing the hitch receiver to the connection of the 4-pole wiring kit(hint: if you're vehicle has the prewiring for towing, they have the custom kits to match). Install was a snap, like 5 minutes, due to the exact fit of the product. It took out the unnecessary problem of figuring out the wiring. Thanks for everything! You definitely found a new customer and I will be highly recommending this site to my circle of family and friends.


Trailer hitch and wiring kit were a “perfect” fit. All holes lined up properly all necessary nuts/bolts provided. Videos for installation are very helpful and provide clear views of all the key issues for a simple professional installation. I found the paper instructions for both confusing and poor quality graphics. Video the only way to go! My experience with initial ordering, delivery and follow up questions were very good. These folks really know what quality customer service is as well a produce an excellent product.


Fit existing wire harness plug in perfe ct

2015 Hyundai Santa Fe

The wiring harness works great and was a perfect fit for my 2015 Santa Fe. The installation was straight forward and fairly simple. One problem was the double sided tape must have been sitting around for years, and was no longer sticky. I had to improvise with glue.


The housing for the fuse came kind of out of shape making it difficult to install fuse and may affect the water tight cap. Everything else was great. Overall satisfied.


The converter box needs to be secured with more than double sided tape.


The wiring harness worked great and the videos helped a lot. I did fry the fuse testing the connections but only because I had my tester set on a much higher amperage than it could handle and the fuse worked like it was supposed to. Was truly plug and play once I gained access to my already installed equipment.

Still working great. We use the hitch all the time but not so much the wiring harness. I wish larger bike racks came with built-in brake and turn signal lights that I could utilize my harness for but thats another subject all together.
Kyle - 03/02/2021


all items worked as expected.

RONALD C - 06/01/2023


Very satisfied customer videos for exact wire harness with exact vehicle make is super easy and felt very confident installing myself following the videos provided.thank you etrailer.


This makes six times I done this now and wanted a premium product for this a modest price. Curt and etrailer. com came through for me. While installation instructions were straight forward, I chose to have my mechanic install rather than crawling around on the driveway. Had nice comments from mechanics on quality of the product.

Jeep Commander

Produit identique commander est conforme

2007 Kia Sorento

I ordered a trailer wire harness for my 2007 kia it simple to install etrailer gives you videos on how to install products which is great and their products prices are great I would recommend them to everyone !

Show More Reviews

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

  • Does the Trailer Wiring Harness C56332 Install the Same on a 2013 Hyundai Santa Fe as a Kia Sorento
    As you probably know, many vehicles over the years have vehicles that are related to each other and are so similar that they have parts that will fit each other. This is the case with the Kia Sorento and Hyundai Santa Fe. The installation on a Hyundai Santa Fe will be virtually identical to the videos we have of the Kia Sorento for trailer wiring harness # C56332.
    view full answer...
  • Will Trailer Wiring Kit # C56332 Work with LED Tail Lights on a 2003 Mitsubishi Outlander
    The trailer wiring harness # C56332 will work with LED lights. This particular harness works with all models of the 2003 Mitsubishi Outlander regardless of what type of tail lights they have. It also works with LED trailer lights. I have included a link to the installation instructions for you to view.
    view full answer...
  • Where Does the Trailer Wiring Harness Converter Box Mount on a 2013 Kia Sorento
    On your 2013 Kia Sorento and trailer wiring harness # C56332 you will use the included double-sided tape to secure the converter box to the bottom of the bumper support channel. You will want to make sure the area on the vehicle is clean first so it will stick better. The converter needs to be out of the elements as much as possible.
    view full answer...
  • Tow Ready Custom Fit Vehicle Wiring Harness for 2014 Kia Sorento
    The part number for the Curt Custom Fit Vehicle Wiring for a 2014 Kia Sorento is # C56332. Please see the product page for current prices on part # C56332. I have included a video of the installation of Trailer Wiring Harness # C56332 for a 2014 Kia Sorento.
    view full answer...
  • Instructions for Tow Ready Trailer Wiring Harness for a 2012 Kia Sorento
    I can supply you with the correct instructions for the Curt Trailer Wiring Harness, # C56332. I have included a link to them for you. You will see that the instructions are numbered with the correct number, located directly above the English instructions. Please note that this harness is designed for a 2012 Kia Sorento that has the factory tow package. You will notice that you are only temporarily disconnecting the driver side tail light wiring connector. The converter box is designed...
    view full answer...
  • Tips For Routing the Trailer Wiring Power Wire to the Battery on a 2011 Kia Sorento
    Routing a power wire to the battery does come up from time to time. I do have a few methods for you and you can determine which one best suits your needs. The first method is probably the easiest and least time consuming. What you will do is connect the long wire to the power wire on the convert box. From there, you can follow along the frame rail and you will probably see other wiring harnesses going from the front to back. You can follow along one of these, using the zip ties to hold...
    view full answer...
  • Tow Ready Trailer Wiring Harness Recommendation 2012 Kia Sorento
    For your 2012 Kia Sorento you would want a Curt T-Connector Custom Fit Vehicle Wiring # C56332. I attached installation instructions for this product for you to check out also. This product has the same connectors that you have on your vehicle and should work very well for you. The # C56024 that you referenced is no longer available.
    view full answer...
  • Will the Curt Custom Fit T-Connector Wiring Harness # C56332 Fit a 2014 Hyundai Santa Fe Sport
    The Curt Custom Fit T-Connector Wiring Harness, # C56332, is the correct wiring harness for your 2014 Hyundai Santa Fe Sport with the tow package. It is odd that the instructions were not included. It may be possible that they were left out during packaging process. I have attached a link to the instructions for you to check out. The instructions list the Kia Sorento and Hyundai Veracruz, but the installation applies to the Santa Fe as well. We have installed this harness on a 2014 Hyundai...
    view full answer...
  • Troubleshooting Trailer Turn Signals After Installing Curt Wiring Harness C56332
    I see that you referenced Curt T-Connector Wiring Harness # C56332, which is a fit for various model years and versions of the Kia Sorento with the factory tow package, but I was not able to find your order history for this item. The issue with the right turn signal staying on continuously could be caused by a defective converter box. Since you confirmed that the input-side wire is carrying the correct on-and-off blinking signal, and since this harness is a plug-in type that does not require...
    view full answer...
  • Troubleshooting Wiring On 2005 Kia Sorento When Rewired Trailer Lights Do Not Function
    I have attached a link to a helpful article that explains how to troubleshoot trailer wiring. It could be a number of things that are causing your trailer lights not to function. The wire kits we offer for your 2005 Kia Sorento require a converter included because the Sorento has a separate wiring system. This means the brake and turn signals are sent along separate wires. A couple of the causes for the trailer not to receive any voltage is that the converter is not properly connected...
    view full answer...
  • Trailer Wiring Harness for 2014 Hyundai Santa Fe Sport w/ Factory Tow Package
    For your 2014 Santa Fe Sport model, the Curt # C56332 trailer wiring harness would be a fit for vehicles equipped with the factory tow package. I've linked you to install videos for the wiring harness. The video shows the harness being installed on a Kia Sorento, but the procedure on your Santa Fe Sport would be identical.
    view full answer...
  • Troubleshooting Trailer Wiring Harness on a 2009 Hyundai Veracruz that Right Turn/Stop Stays On
    It sounds like you had a short on your trailer's wiring that took out the trailer wiring harness you have installed on your 2009 Hyundai Veracruz and now that is why the right side taillight circuit has constant voltage. This happens all the time unfortunately but the good news is the harness did it's job and shorted out instead of allowing the short to make it's way into your vehicle's taillight circuits and potentially damaging your vehicle wiring. You will want to first find the short...
    view full answer...
    Image 1 for
  • Does Curt Trailer Wiring Harness C56332 Fit 2014 Hyundai Santa Fe
    First, thank you for your recent purchases from etrailer. Yes, the Curt wiring harness recommended for you does indeed fit your 2014 Hyundai Santa Fe. The notations on the packaging just simply reflect that the particular harness we shipped to you was produced prior to 2014. Its packaging reflects the confirmed vehicle fits as of the time the printing was done. I have linked for you an installation video showing this harness in a 2013 Santa Fe.
    view full answer...
  • Does Trailer Wiring Harness C56332 Have a Fuse that Can Be Replaced
    Yes, trailer wiring harness # C56332 does have a fuse in a red holder near the large black converter box. If that fuse is fine, then use the vehicle owner's manual to find any fuses related to tow package wiring on the vehicle to check them. If all of the fuses are good and the harness still does not have power at the 4-Way with any of the light functions on then it is likely that the short damaged something inside the converter and it will have to be replaced.
    view full answer...
    Image 1 for
  • Availability of a 2007 Kia Sorento Tow Package Wiring Harness
    If your vehicle has the factory tow package then you can use the Tow Package Wiring Harness with 4 Pole Trailer Connector, item # C56332, which will simply plug into the connector on the passenger side frame rail (see instructions). I would recommend checking the connector with a circuit tester, item # 3808 if needed, before purchasing to be sure that all of the wiring functions are present in the connector you mentioned on your frame rail. If the vehicle is not equipped with the tow package...
    view full answer...
  • Will Trailer Wiring Harness From 2014 Hyundai Santa Fe Sport Fit 2017 Santa Fe Sport
    The Curt Wiring Harness C56151 is no longer available however the Curt # C56332 has been confirmed to fit the 2017 Hyundai Santa Fe Sport as long as you have the factory tow package.
    view full answer...
  • Difference Between Curt and Tow Ready Trailer Wiring Harnesses for a 2017 Hyundai Santa Fe
    Essentially the two harnesses you mentioned are the same things made by two different companies. Both are confirmed fits for your 2017 Hyundai Santa Fe. You made the right choice (even if you didn't mean to choose), though as we have better luck with the Tow Ready harnesses so had you asked me which I would have recommended before you placed your order I would have recommended the one you have.
    view full answer...
  • Most Reliable Trailer Wiring 4-Way Kit for 2014 Kia Sorento
    The modules of the trailer wiring for your 2014 Kia Sorento are not replaceable as they are not available individually. Instead you'd need to replace the entire kit with the # C56332 which is a confirmed fit and our most reliable option.
    view full answer...
  • Installing Curt T-Connector C56332 Vehicle Wiring Harness on 2017 Hyundai Santa Fe Sport
    The Curt T-Connector Vehicle Wiring Harness # C56332 referenced in your question is confirmed to fit your 2017 Hyundai Santa Fe Sport if it has the factory tow package. The plugs you mentioned from the harness will connect to the factory plugs on your Santa Fe Sport, which should be located along the frame rail at the rear of your vehicle. I have attached an installation video on this vehicle so you can see exactly where they will connect. It's very possible that you have simply located...
    view full answer...
  • Trailer Harness Recommendation for 2014 Hyundai Santa Fe Sport with Tow Package
    The correct and best trailer wiring kit we have for your 2014 Hyundai Santa Fe Sport with the tow package is the Curt Wiring Harness part # C56332 which is a confirmed fit. I attached an install video that shows this harness installed in a 2014 Santa Fe just like yours.
    view full answer...
  • Trailer Wiring Recommendation for 2013 Kia Sorento V6 SX with Tow Package
    For trailer wiring for your 2013 Kia Sorento V6 SX with the tow package you would want the Curt kit part # C56332 which is a confirmed fit. This will work on your vehicle with LED lights and work on your trailer that has incandescent bulbs.
    view full answer...
  • Does Curt Wiring for 2016 Kia Sorento Activate Taillights all the Time
    The Curt Trailer Wiring Harness part # C56332 that you referenced does fit your 2016 Kia Sorento and will only illuminate the trailer taillights when the appropriate circuit is activated on the vehicle. The wire that has power all the time is the circuit the harness uses to power the lights but it does not run the power to the lights all the time. Only when needed. I attached an install video for you to check out as well.
    view full answer...
  • Troubleshooting Curt C56332 Wiring Harness Installed on 2016 Hyundai Santa Fe
    First, you'll want to make sure the included 10 amp fuse has been inserted into the red fuse holder on the wiring harness. The harness won't operate without that fuse installed. Be sure that both the connectors were firmly pushed together until they clicked, or the connection might not have been made. If all this checks out, you could be missing a fuse or relay that would activate the tow package. There is a 30 amp fuse in the main fuse box in the engine compartment for the trailering...
    view full answer...
    Image 1 for
  • Wiring Harness with 4-Way Connector Inside Trunk of 2014 Hyundai Santa Fe with Tow Package
    Yes, you will be able to install a wiring harness so that your 4-way connector is located inside the trunk of your 2014 Hyundai Santa Fe, but it will take some extra work. Since your vehicle has a factory tow package, you will still want to plug the custom fit wiring harness, like # C56332, into your factory tow package under your car. There are a couple different ways you could go about this. If you want your converter box inside your trunk as well, you can try and run the connectors...
    view full answer...

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