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  1. Custom Fit Vehicle Wiring
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  4. Trailer Hitch Wiring
  5. 4 Flat
  6. Powered Converter
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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

Item # C56406
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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 directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance. Call 800-298-1624 to order CURT custom fit vehicle wiring part number C56406 or order online at etrailer.com. 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 (55)
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CURT Custom Fit Vehicle Wiring - C56406

  • 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 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


Specs:

  • Maximum amperage:
    • Stop/turn lights: 5 amps per circuit
    • Tail lights: 7.5 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.


Route the 4-flat to the center of the vehicle. Secure the 4-flat to the center of the vehicle in a convenient,out of the way location or the rear hitch. Use the provided cable ties to secure any loose wires.


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.



56406 CURT T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C56406 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56406

Average Customer Rating:  4.9 out of 5 stars   (55 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.

- C56406
by:
2019 Jeep Cherokee

Hitch and T-Connector arrived in a few days. Fit was great and install was very easy. It is a very heavy-duty piece. The T-connector for the wiring makes it really easy to connect to brake lights. Plug and play.



- C56406
by:
2019 Jeep Cherokee

Pretty easy to install. I would recommend, if you have to drop muffler to install your hitch, install your wiring BEFORE reattaching the muffler. Also the directions stated to fish the wires UP through the bumper to the tail light. My arm is not thin or long enough for this. I dropped a ratchet strap down through the bumper, hooked it to the wire and pulled it up. Super easy. The power wire I ran under the wheel wells behind the plastics. Same with the undercarriage. Removed some bolts for the plastics and tucked the wire. I mounted the connector to the hitch with a cheap zip tie bracket I also bought from this site.



- C56406
by:

This wiring kit was perfect for the car and fit in perfectly. Impressive design. Perfect for my Cherokee.



- C56406
by:
2021 Jeep Cherokee

Only thing I would suggest is including more butt connectors and zip ties in the kit. It's nickel and dime stuff and you can easily mess up a butt connector and have to go purchase another. Cost is minimal, and the time to go to a local store for extras is a pain. But overall, great product.



- C56406
by:

Directions were good, install time was quick, and it works like a charm!



- C56406
by:
2020 Jeep Cherokee

I enjoy using your product . Great service. Price is right.



- C56406
by:

Delivery was rapid, well prepared, communication was excellent



- C56406
by:

This fit exactly as expected. I did run the wires a bit different then they expected. I have the module inside instead of out side. But everything works great



- C56406
by:
2021 Jeep Cherokee

Received as soon as we could have over thanksgiving week. Communication was easy and better than expected. I would definitely shop here again.



- C56406
by:

The wiring equipment works great even a year after it was installed. We tell everyone we know to buy it here with etrailer best equipment for heavy haul moving.



- C56406
by:

needed 2 people to get around exhaust. worked great!



- C56406
by:

Great installation video. Very helpful.



- C56406
by:
Jeep Cherokee

Connectors match on my 2021 Jeep Cherokee Trailhawk.



- C56406
by:
2020 Jeep Cherokee

Exactly what I needed, and also has video online with detailed installation instructions. Perfect



- C56406
by:

All is well and etrailer.com is wonderful. I love the support most of all.



- C56406
by:
2019 Jeep Cherokee

Works perfectly



- C56406
by:

Ordered many times from this company and would recommend!



- C56406
by:

Looks great! Installation is easy. Very happy with my purchase.



- C56406
by:

Easy to install and works perfectly.



- C56406
by:

Package came in perfect condition and the right price. The website made it very easy to know what I needed to complete the project.



- C56406
by:

Very fast shipping. Great transaction.



- C56406
by:
2020 Jeep Cherokee

Running wire to battery was difficult to find path. Wish it connected to tail lights & done without separate power.



- C56406
by:

Perfect fit went together easy talk a little time but everything was included thanks



- C56406
by:
2019 Jeep Cherokee

Nice product, nicely made and good fin ish



- C56406
by:
2019 Jeep Cherokee

Super easy installation, most time consuming part was running a wire to the battery.


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Show More Reviews

Ask the Experts about this CURT Custom Fit Vehicle Wiring



  • Is Power Wire to Battery Needed to Install Wiring Harness on 2019 Jeep Cherokee
    When installing the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56406 on a 2019 Jeep Cherokee you will need to route the power wire to the battery of your Jeep. That is how the converter gets power, as opposed to the taillights; the converter is also what protects your vehicle's wiring. I have added a link to a help article on routing a power wire which I recommend taking a look at.
    view full answer...
    Image 1 for
  • Custom 4-Pole Wiring Harness for 2020 Jeep Cherokee
    The Curt 4-pole wiring harness # C56406 and the similar Tekonsha # 118779 will work great on a 2020 Jeep Cherokee without the factory tow package being present. I recommend the Tekonsha kit because in our experience their wiring products are the most reliable. Both of these custom-fit kits plug in to the wiring at the tail lights and they will give you a 4-way flat trailer connector. These harnesses feature a powered tail light converter that will protect the vehicle's internal wiring from...
    view full answer...
  • Finding Someone to Install Curt Class III Hitch on 2019 Jeep Cherokee
    The best way to find someone to install the Curt hitch part # C13395 on your 2019 Jeep Cherokee will be to find a local mechanic in your area with a solid reputation and let them do it. This is listed as taking a little less than an hour for an average Joe to do so a mechanic could probably knock it out in about 30 minutes. They might have a one hour minimum for install time so you'd want to determine that. I attached an install video for this for you to check out as well.
    view full answer...
    Image 1 for
  • Best 4-Pole Wiring Harness for my 2020 Jeep Cherokee?
    There are two four pole trailer wiring options for the 2020 Jeep Cherokee. I prefer the Tekonsha # 118779 over the Curt T-connector # C56406, The Tekonsha's module is much smaller and is easier to mount and hide in the undercarriage of the vehicle. Since your vehicle didn't come from the factory with wiring, it probably didn't come with a hitch either. I recommend # C13395. This hitch is concealed behind your bumper cover and only the receiver tube is visible from behind the vehicle....
    view full answer...
  • Curt Trailer Hitch Recommendation for 2019 Jeep Cherokee Limited
    I checked with Curt and their hitch part # C13395 is a confirmed fit for your 2019 Jeep Cherokee Limited model. The hands free liftgate will only be slightly affected. You'd just have to kick to either side of the hitch opening to operate it. For trailer wiring you'd then want the part # C56406. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise...
    view full answer...
  • Hitch and Wiring for 2019 Jeep Cherokee Latitude Plus
    Curt 2-inch hitch # C13171 is a confirmed fit on the 2019 Jeep Cherokee Latitude and also on the Cherokee Latitude Plus. An installation video showing a 2017 Cherokee is linked for you, along with the written instructions. I checked directly with Curt to confirm this fit. If you also need a 4-pole wiring harness top power trailer lights the correct it is # 118779.
    view full answer...
  • What 7-Way Vehicle Harness For Trailer With Trailer Brakes On 2020 Jeep Cherokee
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56406 for your 2020 Jeep Cherokee will supply power for trailer lights but is not able to supply power for electric trailer brakes by itself. You need to add a 7-way connector that will work with electric trailer brakes. I recommend adding the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56406 for a plug and play installation on your vehicle, and then adding the etrailer...
    view full answer...
  • Trailer Hitch and Wiring Harness for 2020 Jeep Cherokee
    The etrailer brand # e73ZR class III hitch is indeed a confirmed fit for your 2020 Jeep Cherokee. The Curt # C56406 trailer wiring harness is also a fit, so you did just fine choosing the hitch and trailer wiring harness. I've linked to installation instructions and an install video for the trailer wiring harness you purchased.
    view full answer...
  • Parts Needed to Install Brake Controller in 2019 Jeep Cherokee without Factory Tow Package
    Sounds like your 2019 Jeep Cherokee does not have the tow package wiring for a brake controller to install as not all of the Cherokees came equipped with it. If it was present you would have seen the port under the dash where you checked. You will need to start with a 4-way (if you do not have one). For that you would want the # C56406 which is a custom fit for your Cherokee. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that...
    view full answer...
  • Recommended 4-Pole To 7-Pole Adapter For 2021 Jeep Cherokee Trailer Brake Controller
    The T-One Vehicle Wiring Harness with 4-Pole Connector # 118779 is going to wire into your 2021 Jeep Cherokee and run to the rear to allow you to connect to your travel trailer using a 4-wire plug to send braking/turning signals. If your trailer doesn't have a 4-wire plug connection and instead has a 7-way then you would need to use an adapter like the Curt Trailer Connector Adapter - 7-Way RV Style to 4-Way Flat # C57271. This will allow your braking and turning signals to run to your...
    view full answer...
  • Custom 4-Pole Wiring Harness for 2019 Jeep Cherokee
    Curt 4-pole wiring harness # C56406 and the similar Tekonsha # 118779 will work fine on a 2019 Jeep Cherokee with or without the factory tow package being present. Both of these custom-fit kits plug in to the wiring at the tail lights and they will function correctly either way since they are wired independently of any tow package wiring. I recommend the Tekonsha kit because in our experience their wiring products are the most reliable. These harnesses feature a powered tail light converter...
    view full answer...
  • Recommended Trailer Hitch Receiver for 2019 Jeep Cherokee Latitude
    For your 2019 Jeep Cherokee Latitude I recommend the etrailer Trailer Hitch Receiver # e73ZR. This is a custom-fit, Class III hitch with a 2" receiver and a concealed cross tube. It has a maximum gross trailer weight of 4,500 lbs and tongue weight of 675 lbs. What sets this hitch apart from others is the matte black powder coat finish. This has more of an OEM look while doing a better job of hiding dirt and scratches when compared to a glossy finish. If you plan on doing some towing you...
    view full answer...
  • Recommended Trailer Hitch for a 2020 Jeep Cherokee
    The trailer hitch I recommend for a 2020 Jeep Cherokee is the Curt Trailer Hitch Receiver part # C13395. The Curt Trailer Hitch Receiver is a bolt-on fit that will not require any permanent modifications to the vehicle. The Curt Trailer Hitch Receiver also has a hidden design so only the required receiver tube portion will be shown once installed therefore you don't take anything away from the overall appearance of the vehicle. Please note, the Curt Trailer Hitch Receiver is easy to install...
    view full answer...
    Image 1 for

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Info for this part was:

Employee Lindsey S
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Expert Research:
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Employee Cole B
Installed by:
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