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Custom Fit Trailer Wiring


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

Curt Custom Fit Vehicle Wiring

ratingratingratingratingrating (23 reviews)


Code:   C56163

Retail:$115.57

Price:$71.85


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Shipping Weight: 2 pounds

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Curt Custom Fit Vehicle Wiring - C56163

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

Features:

  • 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
    • Locate connection points behind tail lights
    • Plug in T-connector
    • Run hot lead to car battery
  • 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
  • Made in the USA


Specs:

  • Maximum amperage:
    • Stop/turn lights: 5 amps per circuit
    • Tail lights: 5 amps per circuit
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the tail light assemblies to access this harness. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery.


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.



56163 CURT Circuit Protected T-Connector Vehicle Wiring Harness







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


Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.

Video install trailer wiring harness 2012 kia sorento c56163
Trailer Wiring Harness Installation - 2012 Kia Sorento

Video Transcript for Trailer Wiring Harness Installation - 2012 Kia Sorento


This Product Fits The Following Vehicles

2011 - 2013 Kia Sorento 4 Cylinder models

2011 - 2013 Kia Sorento Base I4 without factory tow package

2011 - 2013 Kia Sorento EX I4 without factory tow package

2011 - 2013 Kia Sorento EX V6 without factory tow package

2011 - 2013 Kia Sorento LX I4 without factory tow package

2011 - 2013 Kia Sorento LX V6 without factory tow package

2011 - 2013 Kia Sorento V6 EX without Factory Tow Prep Package

2011 - 2013 Kia Sorento V6 LX without Factory Tow Prep Package


Customers Who Purchased This Custom Fit Vehicle Wiring Also Bought...








Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56163

Average Customer Rating:  ratingratingratingratingrating4.9 out of 5 stars   (23 Customer Reviews)

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


- C56163

ratingratingratingratingrating by: Thomas W.04/07/2013


I gave this Curt wiring harness an excellent rating even though the initial one I received didn't work! That is because of the EXCELLENT customer service I received from Curt when I called. They offered to immediately send me a replacement at no charge, which arrived in two days. I put it in today and it's fine. Tomorrow I will call them as they asked me to and they will arrange with UPS to pick up the old one for analysis. How many companies do you know that would do this???? Most will tell you to pay to ship it back and when they receive the old one, they will send you a replacement in their own sweet time. Curt ranks #1 in my book for customer service and I would not consider buying from anyone else now! One thing to Sedona owners that isn't the fault of Curt. Don't think you're going to install this kit without a fish tape to rout the wires from inside the taillight area and down to the back of the bumper. It is IMPOSSIBLE without a tape or flexible wire. You also have to run a heavy gauge wire (supplied) from the engine compartment to the left tail light area to power the conversion box. Things are not as simple as in the old days of just spicing into existing wires. 74679






- C56163

ratingratingratingratingrating by: Steve M.03/19/2014


I ordered the Curt hitch and wiring kit for my 2012 (4 cyl.) Kia Sorento. Mounting to the car went smoothly and wasn’t difficult thanks in part to watching the videos. I had a friend help which was nice, especially putting the hitch up in place. The products did just what they claimed to do and were cheaper than that other big orange and white place. I like how well Curt hides most of the hitch from view. A special treat was getting up graded to priority shipping (without my request) and receiving everything in about 2 ½ days. Win/win! 121334






- C56163

ratingratingratingratingrating by: sparky08/21/2014


It works okay for now. This is 3rd one I installed since May as first two failed after a few uses. The first one was covered and replaced for nothing. The first two were hard wired style. 3rd one is the new plug in style I only hope the new style ones are going to last. I would have thought curt would of replaced the second one also. I ended up playing for price for two. These were in installed on a 2013 KIA Sorento. 147958






- C56163

ratingratingratingratingrating by: GeorgeS04/06/2013


The wiring harness was easy to attach. Everything I needed to get the 4-Way flat wire connector in place was included. I have ordered another wiring kit that will allow me to convert to 7-way RV connector with an electric brake controller. I'll soon be ready to tow my Aliner Sport pop-up trailer. 74508





Comments

Thanks, Patrick. Everything is still working just fine.

comment by: George S - 04/09/2014


3487



- C56163

ratingratingratingratingrating by: Paul O.09/01/2013


This product is amazing. I recently had trailer wiring installed by Uhaul, and it did not work properly. Even though I purchased the 2yr wiring plan I decided against driving the 45 minutes to have them try and fix it for hours. I purchased this product and had it installed, tested, and completed in about 30 minutes. Everything works great. 97799






- C56163

ratingratingratingratingrating by: Jeff L05/09/2014


This item was priced fairly and was shipped with an upgraded shipping to express and arrived 3 days after order was placed. Very nice of etrailer to do that. This is a quality wiring harness with good instructions and wiring schematic drawing. Everything is included including tie straps. 129703






- C56163

ratingratingratingratingrating by: DANA03/22/2013


Everything worked great. Used a 4' long fiberglass rod to push up From the bottoming thru the left taillight attached the wiring of the rt taillight and pulled thru the small hole. Then passed the free end of pole up thru the right taillight and the hard part was done. Thank u Dana 71899






- C56163

ratingratingratingratingrating by: Keith07/12/2013


This product was fairly easy to install and worked like a charm the first time. The hardest part was running the wire from the converter to the battery. I actually ran it from the battery to the converter because it was easier to drop the wire down through a gap behind the engine. 89327






- C56163

ratingratingratingratingrating by: Amy O09/20/2013


It definately had to be connected to the battery which was a pain having to run the wires to the front of the car from the back of the car. I thought it was just as simple as plugging it into the connector in the tail light. 100734






- C56163

ratingratingratingratingrating by: Heath B.06/01/2014


This product was fairly easy to install. The hardest part is routing the power wire from the taillights to the battery. The part takes about 20 minutes if the car isn't on a lift. Otherwise no problems! 133615






- C56163

ratingratingratingratingrating by: A.J.S.05/18/2013


I just put in the trailer hitch and wiring harness which fit perfect. I am 70 years old and completed the job in about 4 hours by myself. Great product and good instructions. Thanks to all. 80883






- C56163

ratingratingratingratingrating by: Fred M05/15/2013


Very easy to install took about 15 min. Ricky from etrailer helped me when I placed my order and he was awesome and answered all of my questions I would do business again. 80349






- C56163

ratingratingratingratingrating by: John Martin02/01/2014


I had watched a video on the installation and it was easier than expected. As other coments had said the hardest part was fishing the wire to the baery. 115403






- C56163

ratingratingratingratingrating by: Nick F.05/24/2013


A+!!! Instructions were SPOT-ON and it was easy to follow along as the pieces fell together effortlessly. My wife thinks I'm a PRO!!! 81851






- C56163

ratingratingratingratingrating by: Dennis G.08/19/2013


Easy to install works great. Tip: after installation you will read 12 volts across all of the plug terminals. 95718






- C56163

ratingratingratingratingrating by: Len S.08/11/2014


Everything came in as ordered accept the hitch said SX on the box, but it fit my ex Sorento. 145716






- C56163

ratingratingratingratingrating by: Jon K.07/29/2013


Extremely easy installation! Everything worked correctly on the first try. 92064






- C56163

ratingratingratingratingrating by: CHARLES G.03/11/2013


great to wirie in the kia good servive when you get the right parts. 70014






- C56163

ratingratingratingratingrating by: Patrick04/15/2013


I had it installed today it fits perfectly and looks good 76247






- C56163

ratingratingratingratingrating by: Jerry D10/10/2013


Worked great! About 30 Min and you ready to go. 103313






- C56163

ratingratingratingratingrating by: Sam03/27/2013


Easy install, good directions,quality p roduct. 72733






- C56163

ratingratingratingratingrating by: Ron05/19/2013


Great product. Better price than at a d ealer. 80917






- C56163

ratingratingratingratingrating by: Doug04/19/2013


Easy connection and works perfectly. 76912




23
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Ask the Experts about this Curt Custom Fit Vehicle Wiring
Expert Answers about Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56163Do you have a question about this Custom Fit Vehicle Wiring?


  • How to Determine if a 2013 Kia Sorento has a Factory Towing Prep Package
  • The most definitive way to determine if your 2013 Kia Sorento has the factory towing prep package is to have the dealer run the VIN number. They will be able to you how it is equipped. The trailer wiring for vehicles with the tow prep package, # 118541, is located behind the driver side rear wheel along the frame rail. I have linked instructions for you. If you have a 4 cylinder model or a model without the tow prep package use # C56163. For a trailer hitch, the most popular option...
    view full answer...

  • Trailer Wiring Harness Recommendation for a 2012 Kia Sorento V6
  • The only wiring harness for a 2012 Kia Sorento that does not require a direct connection to the battery is # 118541, but it only fits models that have the factory tow package. If the vehicle does not have the factory tow package, you will need to use Tow Ready Wiring Harness, # 118506 or CURT Wiring Harness, # C56163. With either of these harnesses, a few customers found the green wire (for the passenger side tail light) to be a little short. One customer did find an alternate route...
    view full answer...

  • Draw-Tite Versus Hidden Hitch for 2012 Kia Sorento
  • You hit the nail on the head. Hidden Hitch and Draw-Tite are manufactured by the same company, Cequent Performance Products. Both hitches are identical except for the label. Keep in mind that the hitches will not fit a dual exhaust vehicle (with pipes on both sides of the vehicle). If you are interested in a hitch with a less obtrusive appearance, the Curt Class III, part # C13073 might be a better alternative. I have edited a photo for you showing a rear view of both hitches once they...
    view full answer...

  • Difference In The CURT Wiring Harness # 56100 and # C56151 For The 2011 Kia Sorento EX
  • The CURT T-Connector Vehicle Wiring Harness, part # C56163, is used on vehicles without a factory tow package. This harness will connect to the back of your vehicles tail lights on both sides and have a separate power wire that is run to the vehicles battery. The Curt T-Connector Vehicle Wiring Harness, part # C56151, is a wiring harness that is used if your vehicle has a factory tow package. The factory tow harness connector is located under the the driver’s side of the vehicle, on...
    view full answer...

  • Curt Hitch Recommendation for a 2012 Kia Sorento that is Compatible with a Full Size Spare
  • The Curt Hitch # C13073 is compatible with your vehicle and allows a full size spare to be used when in installed. Check out the picture I attached that shows this hitch installed on a vehicle similar to yours and a full size spare underneath the rear of the vehicle. I attached installation instructions and an installation video for this product for you to check out also. To complete your towing setup you may be interested in the following products: Curt Custom Fit Vehicle Wiring...
    view full answer...

  • Where Does Trailer Wiring Harness C56163 Install on a 2013 Kia Sorento without Factory Tow Package
  • There are about 7 configurations of the 2013 Kia Sorento so I would need to know if it is an EX, LX, SX, or base model and if it has a 4 cylinder motor or 6 cylinder motor. This is just to ensure we can get you the correct option. Wiring harness # C56163 will fit base, EX, LX, SX models with 4 or 6 cylinder as long as they do not have the tow package. The connectors on the harness are designed to plug in line with the tail light wiring on the vehicle. I have included a link to the installation...
    view full answer...

  • Are the Tow Package Wiring Plugs Present on a 2012 Kia Sorento without Factory Tow Package
  • The wiring could very well be present even if the vehicle does not have the factory tow package. However, just because the wiring is there does not mean it is activated. Factory tow package wiring requires certain components that are not present in vehicles without the tow package. The Curt wiring harness # C56163 is going to be the best option if the 2012 Kia Sorento does not have the factory tow package. I have included a link to the installation instructions for you and a link to...
    view full answer...

  • Lights Stay On, 2011 Kia Sorento With Trailer Wiring Harness and Brake Controller Installed
  • I think you are correct, there is a problem with the internal circuitry of the converter box. It is not unheard of for one to go bad but when it happens multiple times on the same vehicle there could be another issue causing it to malfunction. The most likely suspect is the trailer wiring. If there is a short anywhere on the trailer it can be damaging the converter box. You can check the grounds and trailer connectors as well as the wiring on the trailer side to determine if there is...
    view full answer...

  • Trailer Wiring Harness Recommendation for a 2012 Kia Sorento
  • The main difference between the Curt Modulite Wiring Harness, # 56146KIT, and the Curt T-Connector Wiring Harness, # C56163, is that the T-Connector harness, # C56163, simply plugs into the factory tail light connectors at the back of the tail light assemblies. The Modulite Harness, # 56146KIT, will need to be hardwired into your vehicles tail light circuits. I would recommend using the T-Connector Harness # C56163 because you will not need to cut or splice into your vehicles tail light...
    view full answer...

  • What is the Correct Trailer Wiring harness for a 2012 Kia Sorento 4 Cylinder
  • The correct wiring harness for a 4 cylinder 2012 Kia Sorento is # C56163. The other kit you have referenced, # 118506, is not a verified fit for the 4 cylinder 2012 models. I have included a link to the installation instructions for you to view.
    view full answer...

  • Trailer Wiring Harness Options for a 2012 Kia Sorento EX
  • There are 2 different wiring harnesses available for the 2012 Kia Sorento. If you have a V6 model with a factory towing prep package, you can use harness # 118541 that you referenced. It will only fit the V6, towing prep models. If you have a 4 cylinder model, you would need to use # C56163. I have included links to the installation instructions for both kits for you.
    view full answer...

  • Trailer Hitch and Wiring for a 2012 Kia Sorento LX
  • What is interesting about vehicles that can be pre-wired from the factory for trailer wiring is that the wiring might be there but you will not know if it is live or not. You will need to test the connectors in your picture using a circuit tester like # 3808. You will need to have someone sit in the vehicle and run through the functions while you test the connector. If it is a live connector then you can use the appropriate harness for a 2012 Sorento with factory tow package. Or you...
    view full answer...

  • Pilot Brake and Tail Light Hitch Cover # CR-007A Will Not Turn Off
  • If the Pilot Brake and Tail Light Hitch Cover, # CR-007A, never goes out, then it is constantly receiving power from one of the tail light circuits coming from the vehicle. To begin troubleshooting, make sure your vehicle is turned off and the vehicle lights are off. If the hitch light stays on with the vehicle off and lights off, there is a problem. I recommend using a circuit tester, like our Quickee Tester, # 3808, to test each of the pins on the 4-way connector on your Sorento with...
    view full answer...

  • Troubleshooting Trailer Running Lights on a 2011 Kia Sedona
  • It sounds like the problem is on the trailer side of the wiring equation since your running lights seem to work on your boat trailer, but to be sure you should test the running light of the 4-way with a circuit tester like our part # 3808. Check out the video I attached that shows how to do this. Its pretty easy, you would basically just need to turn on the running lights of your 2011 Kia Sedona and then test the pin on your 4-way that has a brown wire run to it for voltage. If its there...
    view full answer...

  • 4-Way on Curt Trailer Wiring Harness for 2012 Kia Sorento Shows Power All the TIme
  • Yes. This is a common issue with the Curt powered trailer wiring harnesses. There will be power to the 4-Way but it should not be enough to light up the trailer lights unless they are LED lights. If you plug in the trailer and the lights do light up then there could actually be a short somewhere. Use a circuit tester like # 3808 to test the wires leading into the converter box. If the signals are correct going in but not correct at the 4-Way AND the trailer lights come on when plugged...
    view full answer...

  • Recommended Towing Package For 2011 Kia Sorento 4 Cylinder
  • If your 2011 Kia Sorento does not have the dual exhaust system with a tailpipe on both the driver and passenger side, I recommend the Draw-Tite Class ll Hitch, part # 36511. This hitch has a 1-1/4 inch receiver opening. I have attached an installation video for this hitch on a Sorento you can check out. You may be interested in a Draw-Tite Ball Mount like part # 36051. This drawbar provides a 5/8 inch rise or a 1-1/4 inch drop and measures 7 inches from the center of the hitch pin hole...
    view full answer...

  • Trailer Running Lights Not Working when Coupled to a 2013 Kia Sorento
  • To me it sounds like the converter is working fine and the issue is with the trailer wiring. Since you tested the vehicle side connector and it worked fine that just leaves the trailer. And since you mentioned that the ground was causing some problems during a test, I think that is the exact problem, a bad ground. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. Since it has been a while since you have used the trailer connector,...
    view full answer...

  • Can Wiring Harness 56163 Be Installed on 2012 Kia Sorento with or without Factory Tow Package
  • The connectors being present under the vehicle does not indicate whether or not your 2012 Kia Sorento has the factory tow package. The plugs can be there but not be active. The easiest way to determine how your Sorento is equipped is to have the dealer run the VIN. They should be able to tell you what options the vehicle has. A trickier way is to use a circuit tester such as # 3808 to test the connectors you found while someone sits in the cab of the vehicle and runs through the various...
    view full answer...

  • Wiring Harness Recommendation and Installation for a 2013 Kia Sorento
  • We do have some installation videos of the Curt Wiring Harness, # 56146KIT, however we do not have an installation video on a 2013 Kia Sorento at this time. The installation videos for other vehicles can be found on the product page, but the installations will be different from your Sorento. To install the Curt wiring harness # 56146KIT you will need to splice into your vehicles tail light wiring. Instead of using a wiring harness that requires you to splice or cut into your existing...
    view full answer...

  • No Trailer Brake Lights and Turn Signals Alternate Blinking with Wiring Harness on 2013 Kia Sorento
  • This sounds like a ground issue. To test it you will first disconnect the trailer from the tow vehicle. Then use a circuit tester like # 3808 if you need one to test the wires on the vehicle side. Start by testing the wires leading into the converter box. If the signals are not correct coming in then there is a problem with the vehicle wiring that needs to be addressed. If the signals are correct going in, move on to testing the 4-Way on the vehicle with the circuit tester. If the signals...
    view full answer...


Info for this part was:


Photos by:
Theodore B

Updated by:
Lindsey S

Expert Research:
Michael H

Expert Research:
Jameson C

Updated by:
Adele M

Video by:
Alan C

Test Fit:
Joe B

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