Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
(124 reviews)
Price: $81.90
In Stock
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Item # C56406
Retail:$146.95
Our Price: $81.90
You Save: 44%
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- Reviews (124)
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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.
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
This Product Fits The Following Vehicles
- 2019 - 2023 Jeep Cherokee excluding Trailhawk
- 2019 - 2023 Jeep Cherokee Trailhawk
- 2019 - 2022 Jeep Cherokee without factory tow package
California residents: click here
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
- Wrong item was ordered
- Product did not meet expectations
- etrailer mistake
Customer Reviews
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56406
Average Customer Rating: 4.8 out of 5 stars (124 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.by: Luis 01/08/2024
Followed the installation video and completed installation with ease. Great addition. All working and matches to factory rear lights. The install videos are amazing.
by: Roderick05/10/2023
My order arrived yesterday, and it was on time and intact, but when I started installing the wiring system, C56406 I noticed the small parts shown in the layout, the 15 Amp fuse, the 2 butt connectors, and the eye crimp connector were not included. It's no big deal but I'm 40 miles from Town so it would be nice to know I needed these items to finish the installation. I have the connectors but no 15 Amp fuse.
by: Kenneth 06/11/2023
It is a complete add on towing light kit that was easy to install and it worked perfectly. The only somewhat difficult part of the install is running the power cable from front to back and that is only because of how low to the ground my car is. If I needed another kit I would buy the same kit from etrailer.
by: Michael W08/30/2019
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.
by: Gary 12/26/2023
2019 Jeep Cherokee
Installed exactly as the video showed and was simple and straight forward.
by: Gary05/24/2023
Developed a “short” somewhere causing the running lights to stay on constantly. Checked ground and wiring and still can’t trace it down.
Jenny N.
5/29/2023
There could be more than one reason why the trailer lights are staying on constantly, starting with a corroded connector. What corrosion does is cause a short which can lead to the lights staying on, and when you unplug the connectors, they would, of course, turn off. So, start by checking there, and if you cannot clean the corrosion, you can replace the connectors on either the side of your vehicle or trailer. The other possibility is a short caused by damaged wiring on the trailer itself that is causing the power to remain, so you will want to check your wiring carefully looking for any damaged wires and repair or replace as needed with 10-gauge wire part # 10-1-1. I have added a link below to a help article on a troubleshooting guide for you to take a look at.
Helpful Links
by: Steven04/07/2024
Fit perfectly. Plugged right into my factory plugs. Super clean install.
by: Kevin 04/29/2023
I bought this kit so I wouldn't need to cut my jeeps harness. It was a simple install by plugging into the taillight harness and has worked flawlessly.
by: Cesar08/06/2023
only recieved the wire harness , have not received the hitch.
by: Daniel 07/21/2023
Easy installation, only thing I would change about this product is I would add a few more zip ties for a nice clean install.
by: Ronald 10/23/2023
Peyton was great. I liked her a lot. She was very helpful and I will come back again.
by: James03/07/2023
Worked just like I wanted it to and like they said it would. Installation went smoothly.
by: Craig 09/21/2023
worked great
by: Richard 08/01/2023
2019 Jeep Cherokee
It is very easy to find and order online. And also they get right on your order quickly and get it shipped to you
by: Elaine 06/29/2023
I was so happy that my local business installed the hitch with no problem
by: Erny06/29/2023
Excellent service from your staffs. Special thanks to Emily.
by: Kenneth 07/23/2021
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.
by: Mr.Hall10/07/2019
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.
by: Elmer Johnson04/09/2022
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.
by: John 08/17/2022
Super Easy. The customer tech replied quickly and let me know what harness to order. Package came within three days
by: Harvey12/27/2021
This wiring kit was perfect for the car and fit in perfectly. Impressive design. Perfect for my Cherokee.
by: Cory 08/22/2022
Plenty of extra wire length. Easy to follow instructions.
by: Hugh07/20/2020
2020 Jeep Cherokee
Running wire to battery was difficult to find path. Wish it connected to tail lights & done without separate power.
by: Randy01/19/2021
Jeep Cherokee
Connectors match on my 2021 Jeep Cherokee Trailhawk.
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Show More Reviews
See what our Experts say about this CURT Custom Fit Vehicle Wiring
- Trailer Wiring Recommendation for 2019 Jeep Cherokee LatitudeFor your 2019 Jeep Cherokee Latitude the best trailer wiring option is the Curt part # C56406 as it installs the easiest and has the most reliable converter box as well. I attached an install video for more info on this as well.
view full answer... - Can You Jump Off A Diode Wiring Kit To Install A 4-Pole Trailer ConnectorNo, you can not just jump off of the diode wiring kit to install a 4-pole flat on the back of your 2019 Jeep Cherokee. You'll need the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56406 which has a module that reads the signals passing through your Jeep's factory wiring and sends them through to the trailer via the 4-pole flat connector. This module is fused to prevent any damage to you vehicle's wiring in the event of a short. Just jumping from the wiring...
view full answer... - Curt 4-Way Vehicle Wiring Harness Continues To Have Trailer Lights On When Ignition Is Switched OffFirst thing you will want to check Steve is the settings on your 2020 Jeep Cherokee. Often times the running lights can stay on even after the ignition is switched off which would explain why the Curt Harness # C56406 allows the trailer lights to remain on after the ignition is switched off. Since this harness ties into the tail lights on your Cherokee to get their signal they should operate only when the vehicle lights operate. If the lights on the trailer are coming on when the vehicle...
view full answer... - Is Power Wire to Battery Needed to Install Wiring Harness on 2019 Jeep CherokeeWhen 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.
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- Aftermarket Trailer Wiring Harness for a 2019 Jeep CherokeeFor your 2019 Jeep Cherokee, the Curt Vehicle Wiring Harness part # C56406 is a confirmed fit and will work for you. This is a brand new wiring harness that was developed specifically for the 2019 model year and that is all it will fit. This is not an OEM harness like something you would find in a dealer catalog as it is an aftermarket part that is supplied and test fit by third party manufacturers such as Tekonsha. In regards to the activation of the tow package wiring, that will only...
view full answer... - Troubleshooting Trailer Wiring Harness Installation on 2020 Jeep CherokeeWe can absolutely help you troubleshoot this. When installing a wiring harness like the Curt # C56406 on your 2020 Jeep Cherokee, this most commonly occurs when one of three things happens; either the plug is not seating correctly with the harness, there is a blown or missing fuse, or the ground wire is not sufficiently connected. In this case, checking the ground connection is always the easiest and first thing to look at; check to make sure it is firmly connected to a paint and debris...
view full answer... - Recommended Custom Fit 4-Way Connector Harness For 2022 Jeep CherokeeThere sure is! For your 2022 Jeep Cherokee I recommend the Curt Vehicle Wiring Harness # C56406 which is specifically designed for your vehicle so it will plug in to your factory connectors and will require no splicing. You will need to run a wire from the black wire on the harness to the positive terminal of your vehicle battery with the included in-line fuse to protect your factory tail light circuits from being overloaded or damaged by back feed. I included a video of the # 118779...
view full answer... - Will Installing an After Market Wiring Harness Void Any Parts of My Warranty on a 2019 Jeep CherokeeIf you splice into factory wiring that can be an issue with warranty, but if you use an aftermarket harness like the Curt Vehicle Wiring Harness with 4-Pole Connector # C56406 on your 2019 Jeep Cherokee you will be fine. The harnesses like this that don't alter the factory equipment in any way cannot void your warranty. You will be protected by the Magnuson–Moss Warranty Act. This act states, in part, that unless the installation and the part caused a problem then the warranty cannot...
view full answer... - Will The Curt Dinghy Tow Harness 58963 Also Allow for Connecting To a Boat Trailer? Sorry John, the Curt dinghy tow harness 58963 can only be used for dinghy towing and will not work for connecting to a trailer. Instead you will need the Curt T-Connector Vehicle Wiring Harness # C56406 for your 2021 Jeep Grand Cherokee. This harness is specifically designed for trailer use as it has a powered converter which will send power to the trailer lights from your battery rather than putting strain on your factory wiring.
view full answer... - Custom 4-Pole Wiring Harness for 2020 Jeep CherokeeThe Curt 4-pole wiring harness # C56406 will work great on a 2020 Jeep Cherokee without the factory tow package being present. I recommend the Curt item # C56406 because in our experience their wiring products are the most reliable. This custom-fit kit plug in to the wiring at the tail lights and will give you a 4-way flat trailer connector. This harness features a powered tail light converter that will protect the vehicle's internal wiring from potential risk caused by shorts or overloads...
view full answer... - Can Trailer Wiring for 2019 Jeep Cherokee Be Connected to Flat Tow Wiring HarnessI'd be interested to know what exact Curt wiring harness you installed for flat towing your 2019 Jeep Cherokee since flat towing harnesses are designed to receive power while towing harnesses are designed to send power - something like what you described doesn't exist as far as I know. Now what you CAN do is install the Curt T-Connector Vehicle Wiring Harness # C56406 in addition to a flat towing harness. This will just tee in behind the tail lights like your flat towing wiring might have...
view full answer... - Will Curt C56406 Turn Off ParkSense Feature of 2019 Jeep Cherokee When Backing a TrailerThe Curt # C56406 will NOT turn off the ParkSense feature of your 2019 Cherokee, but luckily enough, the folks at Jeep had the good sense to make a provision that allows you to turn off that feature temporarily. You can turn on and turn off ParkSense with the ParkSense switch located below the Uconnect display. When the switch is pushed to disable the system, the display will show 'ParkSense Off'. When the shifter is moved into reverse while the system is disabled, the display will show...
view full answer... - What 4-Pole Wiring Harness will Fit My 2021 Jeep Cherokee?For a great 4-pole wiring harness that will get the job done on your 2021 Jeep Cherokee, I recommend the Curt Vehicle Wiring Harness with 4-Pole Connector # C56406. This harness will give you brake light, running light, and turn signal functionality. If you need a ball mount and ball like what is included in the etrailer Ball Mount Kit for 2" Hitches - 2-3/4" Rise or 4" Drop # 989892. If you need an additional rise or drop for the mount, I linked a product page of all of our available...
view full answer... - 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 Curt T-connector # C56406. 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. I have attached an article to determine which ball mount works best for your application. An existing ball mount might work, but make...
view full answer... - Hitch and Trailer Wiring Harness Recommendation for 2020 Jeep Cherokee LatitudeFor your 2020 Cherokee Latitude, I'd recommend going with the Curt # C13395 Class III receiver hitch you'd looked at. The hitch is designed so that the crossbar will be concealed behind the rear bumper, with only the receiver tube and safety chain loops being visible. For a trailer wiring harness, I'd recommend the Curt # C56406 harness. The harness will plug inline using the connectors that attach the taillight assemblies to the vehicle's taillight wiring harnesses.
view full answer... - Will Installation of a Trailer Hitch and Wiring Void Warranty on a 2019 Jeep Cherokee LatitudeInstalling a trailer hitch like the recommended Curt # C13395 that you referenced will not void the warranty on your 2019 Jeep Cherokee Latitude unless the problem was the direct result of the installation. This is covered under the Federal Magnuson-Moss Warranty Act.
view full answer... - Parts Needed to Add 7-Way to 2020 Jeep CherokeeThere is not; to add a 7-way to your 2020 Jeep Cherokee you do have to wire it in as a plug-in option does not exist. So what you need is the following: - T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56406 - Universal Installation Kit for Trailer Brake Controller # ETBC7 You will first install the 4-flat, which will activate your trailer's lighting functions, and you'll then plug that into the 7-way that comes with the # ETBC7, which also gives you the wiring,...
view full answer... - Can Both Trailer Wiring and Flat-Tow Wiring Harnesses Be Installed On a 2019 Jeep CherokeeI have a great option that will allow you to illuminate the taillights on the towed vehicle while in tow as well as the lights on a trailer while being towed with said towed vehicle. For the first part, I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part # RM-15267 and then for the second part I recommend the Curt Vehicle Wiring Harness with 4-Pole Connector part # C56406. The two won't interfere with one another.
view full answer... - 7-Way/4-Way Kit for 2019 Jeep Cherokee Trailhawk Similar to Factory Wiring SetupI looked up the factory hitch and wiring kit for your 2019 Jeep Cherokee and the style of connector is the # HM11141144 which you could install on your vehicle but you'd want to use the 4-way kit part # C56406 as an easy way to get the trailer taillight functions first. This is custom fit for your vehicle and you could cut off the 4-way so that you could wire the harness to the 7-way and you'd be set.
view full answer... - Trailer Hitch Confirmed to Fit a 2022 Jeep Cherokee TrailhawkThe Curt Trailer Hitch Receiver # C13395 is confirmed to fit your 2022 Jeep Cherokee Trailhawk. This hitch is made in the USA, has a bolt-on, no-drill installation and will provide you with a 2" hitch receiver. The 2" receiver is the most common size used for hitch mounted accessories such as bike racks, cargo carriers and ball mounts. This hitch also has a concealed cross tube for a cleaner appearance. If you plan to do any towing, you can round out a tow package by adding the Curt T-Connector...
view full answer... - Will Curt Trailer Hitch Receiver 13171 Fit 2019 Jeep CherokeeThe Curt Trailer Hitch Receiver # C13171 is confirmed to fit all models of the 2019 Jeep Cherokee. As long as you have a factory exhaust pipe this hitch will fit your Jeep without any issues. If you plan on doing some towing you will also want the Curt T-Connector Vehicle Wiring Harness # C56406. This wiring harness plugs into existing wiring and will provide you with a 4-way to power your trailer's signal lights. For a ball mount, check out the etrailer Ball Mount Kit # 989900. This...
view full answer... - Do All 2019 Jeep Cherokees Come with a Tow PackageI do have everything you need to setup a 2019 Jeep Cherokee for towing but not all models come with the factory tow package. If you don't have this and you need to tow a trailer you'll need to start with a trailer hitch and for this I recommend the Curt Trailer Hitch Receiver part # C13395 which offers a bolt-on fit with 2" receiver. If you are planning on towing you will also need a wiring harness item # C56406 and a ball mount kit item # C45534.
view full answer... - Parts Needed to Tow Trailer with 2019 Jeep Cherokee LimitedWe can definitely help you tow the small boat trailer you have with the 2019 Jeep Cherokee Limited since your plan is to stay under the weight capacity of the vehicle. For a hitch the Curt Class III part # C13395 is a really great option with more capacity than you'd need and is mostly hidden. Then for trailer wiring the Curt part # C56406 is a great option that installs easily and is very reliable. Since you wanted to do some towing you might be interested in etrailer ball mount kit #...
view full answer...
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
Edited by:
Lindsey S
Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Dustin K
Video Edited:
Chris R
Installed by:
Cole B
Updated by:
Wilson B
Updated by:
Kristina F
Updated by:
Matthew E
Updated by:
Isabelle B
Written by:
Ronnie R
Video by:
Jonathan Y
Video by:
Schuyler H
Test Fit:
David F
Test Fit:
Ryan G
Test Fit:
Bradley B
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Jenny N.
5/12/2023
I am not sure what happened however the fuse, connectors, and eyelets are included. I will have our Customer Service team reach out to you.