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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

Item # 56407
Retail:$135.95
Our Price: $74.94
You Save: 45%
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. 1-800-940-8924 to order CURT custom fit vehicle wiring part number 56407 or order online at etrailer.com. Free expert support on all CURT products. Great prices 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 (23)
  • Q & A (0)
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CURT Custom Fit Vehicle Wiring - 56407

  • 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 in rear cargo area
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes a powered tail light converter that connects directly to your battery to avoid overloading your 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: 3.0 amps per circuit
    • Tail lights: 6.0 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 trim access cover, scuff panels, and tail lights to access these connection points. Once you've plugged in the T-connector, run the hot lead to your car battery, which can be found in your trunk on the passenger's side. 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 in an out-of-the-way location within your trunk.


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.


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.



56407 Curt T-Connector - Surface Mount Technology - 4 Wire

Installation Details 56407 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 56407

Average Customer Rating:  5.0 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.

by:
2024 Jeep Wrangler Unlimited

Excellent transaction! They are my go to for anything for my Jeep



by:

Super easy wiring job if you have a crawler. The instructions on the etrailer site made the entire thing a breeze. Still working great a year later.



by:

Best pricing, easy fit, easy installation (the videos are excellent).



by:

Definitley my G0-To place for everything for towing and trailers!



by:
Jeep Wrangler

Easy to install and fits perfectly on my 22 Jeep Wrangler. Works as expected.



by:
2024 Jeep Wrangler 4xe

Delivered timely easy and easy install



by:

Arrived on time, product was as describ ed.



by:

Easy install, took my time and it went well, no complaints



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2022 Jeep Wrangler



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2019 Jeep Wrangler Unlimited



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2022 Jeep Wrangler



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2024 Jeep Wrangler 4xe



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2021 Jeep Wrangler



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2019 Jeep Wrangler



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23

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

  • Trailer Hitch Receiver & Wiring Harness For 2021 Jeep Wrangler
    We have both a trailer hitch and a wiring harness for your 2021 Jeep Wrangler. What you need is one of the following, depending on if you have the EcoDiesel engine or not: - NON-EcoDiesel Engine: Curt Trailer Hitch Receiver # C13392 - EcoDiesel Engine: Curt Trailer Hitch Receiver # C63FV For both options the correct 4-way wiring harness is the T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 56407.
    view full answer...
  • Recommended Hitch for a 2024 Jeep Gladiator
    To add a hitch to your 2024 Jeep Gladiator, I recommend the etrailer item # e67AR. This class III hitch bolts to your Jeep with included hardware. It fits all models of the 2024 Gladiator. The etrailer item # e67AR has a 5,000 lbs towing capacity and a 500 lbs maximum tongue weight. The best part about this hitch is how simple the installation process is. It attaches to the bottom of your rear bumper with three bolts. I have linked an installation video below to help you get it set...
    view full answer...
  • Does Curt Wriing for a 2024 Jeep Wrangler Require Connecting the Power Wire to the Battery
    Yes, the Curt T-Connector # 56407 will require you to route a power wire from the black module box to the battery on your 2024 Jeep Wrangler. I know it isn't convenient, but it's the best setup when it comes to a trailer wiring harness since this tees in behind your tail lights and then powers your trailer lights via the battery in your Jeep. The separate 12V power wire powers your trailer lights but also doubles as a way to protect the OEM wiring on your Jeep.
    view full answer...
  • Recommended Hitch and Wiring Harness for a 2020 Jeep Wrangler
    I would be happy to make a couple for you! To add a hitch to your 2020 Jeep Wrangler, I recommend the Curt item # 13432. This hitch is custom fit and bolts to your Jeep super easy with four included bolts. It's got a 2" receiver with a 3,500 lbs towing capacity and a 350 lbs maximum tongue weight so it will be great for towing or trailer or using accessories like a bike rack or cargo carrier. I have linked an installation video below to help you get this hitch set up. For a wiring harness,...
    view full answer...
  • Will the Curt Hitch C13392 Fit a 2024 Jeep Wrangler 4xe?
    Yes, it will! The Curt Hitch item # C13392 has been confirmed to fit the 2024 Jeep Wrangler 4xe. This hitch is custom fit and easily mounts to your Jeep with included hardware. It is a class III hitch with a 2" receiver, that has a 5,000 lbs towing capacity, and a 500 lbs maximum tongue weight. I have linked an installation video below to help you get it set up. If you are planning on towing you will also need a wiring harness item # 56407 and a ball mount kit item # C45534.
    view full answer...
  • Recommended Hitch and Wiring Harness for a 2024 Jeep Wrangler Unlimited Sport w/out the Tow Package
    I checked with our vendors and to add a hitch to your 2024 Jeep Wrangler Unlimited Sport you will need the Curt item # C13392. This hitch has been confirmed to fit the 2024 models so long as yours does not have a diesel engine. This hitch will work great with either of the Kuat Pivot Swing Away Adapters item # PVD20B for the driver's side or the more popular item # PVP20B for the passenger side. Both are compatible with the Kuat NV 2.0 Base Bike Rack item # BA22B you mentioned. Since...
    view full answer...
  • Recommended Hitch for a 2023 Jeep Wrangler Unlimited
    Yes, we do. To add a hitch to your 2023 Jeep Wrangler Unlimited, I recommend the etrailer Hitch item # e98856. This hitch is custom fit and bolts to your Jeep with included hardware. The etrailer item # e98856 is a class III hitch with a 2" receiver. It has a 3,500 lbs towing capacity and a 350 lbs maximum tongue weight. I really like this hitch because of the ease of installation. Getting it set up only requires installing four bolts to your Jeep's bumper. I have attached a couple...
    view full answer...
    Image 1 for Image 2 for
  • Recommended 7-Way Connector for a 2024 Jeep Wrangler Unlimited w/out the Tow Package
    Yes, I would be happy to help you! To tow a trailer with brakes and install a 7-Way harness on your 2024 Jeep Wrangler Unlimited you will need two separate wiring harnesses because they don't make just one that'll do the job. The first harness you'll need is the Curt T-Connector Vehicle Wiring Harness item # 56407. This custom-fit T-connector plugs into your Jeep's wiring harness, which is located behind the tail lights. This will provide you with a 4-flat connector. The second harness...
    view full answer...
    Image 1 for Image 2 for
  • What is the Highest Capacity Hitch for a 2024 Jeep Wrangler Unlimited?
    The highest capacity hitch for a 2024 Jeep Wrangler Unlimited is the Draw-Tite item # DT78MR. This hitch is custom fit and bolts to your Jeep with included hardware. The Draw-Tite item # DT78MR is a class III hitch with a 2" receiver. It has a 4,500 lbs towing capacity and a 675 lbs maximum tongue weight. I really like this hitch because of the ease of installation. Getting it set up only requires installing four bolts to preexisting holes in your Jeep's bumper. I have attached a couple...
    view full answer...
    Image 1 for Image 2 for
  • Adding Brake Controller to 2022 Jeep Wrangler Unlimited w/o Tow Package That is Wired For Flat Towin
    Hi there Patrick; thanks for writing in and you can absolutely get your 2022 Jeep Wrangler Unlimited without the tow package set up with the Prodigy P3 Brake Controller # 90195 even though it is already wired for flat towing. The flat tow wiring gets spliced in before the connector and the 4-way will plug into the connector which is why they can be used together. You do have the correct parts for your '22 Wrangler Unlimited as well: - Curt T-Connector Vehicle Wiring Harness with 4-Pole...
    view full answer...
  • What Hitch and Wiring Harness Will Fit a 2024 Jeep Wrangler Sport?
    I checked with our vendors and to add a hitch to your 2024 Jeep Wrangler Sport you will need the Curt item # C13392. This hitch has been confirmed to fit by Curt for the 2024 models so long as yours does not have a diesel engine. Since your Jeep does not have the tow package you will need the Curt T-Connector Vehicle Wiring Harness item # 56407. This custom-fit T-connector plugs into your Jeep's wiring harness, which is located behind the tail lights. It will provide you with a 4-flat...
    view full answer...
  • 4-Flat Trailer Wiring For 2024 Jeep Wrangler With Tow Bar Wiring
  • Trailer Wiring Harness For 2023 Jeep Wranger Using Curt Hitch C63FV
    For your 2023 Jeep Wrangler Unlimited, the correct 4-way wiring harness you can use with the Curt Trailer Hitch # C63FV is the following: - T-Connector Vehicle Wiring Harness # 56407
    view full answer...
  • Can Curt Trailer Wiring and Blue Ox Tow Bar Wiring Install on 2023 Jeep Wrangler At Same Time
    Yes, both the Blue Ox tow bar wiring kit part # BLU79FR and the Curt trailer wiring kit part # 56407 can install at same time on your 2023 Jeep Wrangler Unlimited and the order in which they install does not matter at all.
    view full answer...
  • Will Curt Trailer Wiring Harness part # 56407 Drain Car Battery
    Hey Jason, it sounds like you are maybe asking if the Curt trailer wiring harness part # 56407 could possibly power the taillights of your vehicle due to a parasitic draw you are experiencing? If so, this could do that but it wasn't intended to do so. If instead you were asking if this can be used for trailer wiring without draining the battery of the car it is installed in the answer to that is yes. It would not drain the battery if left installed.
    view full answer...
  • Is 12 Volt Outlet Needed For Curt 4-Way on 2024 Jeep Wrangler
    I'm sorry I don't quite understand what you're asking.
    view full answer...
  • Recommended Hitch for a 2024 Jeep Wrangler
    To add a hitch to your 2024 Jeep Wrangler, I recommend the Curt item # C13392. This hitch is custom fit and bolts to your Jeep with included hardware. This is a class III hitch with a 2" receiver. It has a 5,000 lbs towing capacity and a 500 lbs maximum tongue weight. I really like the Curt Hitch item # C13392 because of its ease of installation. This hitch bolts right to your rear bumper beam with four grade 8 bolts. I have linked an installation video below to help you get this hitch...
    view full answer...
  • Availability Of Bracket For Permanently Mounting A Trailer Plug On Bumper
    We generally use a bracket like the Mounting Bracket # 18144 to permanently mount a 4-flat plug. You can use a few self-tapping screws to mount in on the bumper, or really wherever you want. We usually will attach the bracket to the cross-tube of the trailer hitch.
    view full answer...
  • Recommended Plug and Play Flat Towing Wiring Harness for a 2020 Jeep Wrangler
    Yes, we do! It is the Hopkins Custom Tail Light Wiring Kit item # HM39VR. This will give you a plug and play set up to control your 2020 Jeep Wrangler's lights with your RV.
    view full answer...
  • Can 7-Way Adapter Power Wire Be Same Wire as 4-Way Converter Box
    You actually don't have to run a power wire to the Curt 7-way adapter part # C57672 unless you need the circuit for like a battery charge or interior/exterior lighting on the trailer. If you don't have a need for that you can leave that circuit unconnected. Otherwise I would have to recommend using a separate wire from the converter box power circuit. One easier solution would be the # 10-2-1 which is a double bonded 10 gauge wire that basically allows you to run one wire but it's really...
    view full answer...
  • Can You Recommend a Hitch for a 2024 Jeep Wrangler Unlimited?
    Yes, I can! To add a hitch to your 2024 Jeep Wrangler Unlimited, I recommend the etrailer item # e98856. This hitch is custom fit and bolts to your Jeep with included hardware. It is a class III hitch with a 2" receiver so it'll be great for towing, bike racks, and cargo carriers. It has a 5,000 lbs towing capacity and a 500 lbs maximum tongue weight. I really like the etrailer Hitch item # e98856 because of its ease of install. This hitch attaches directly to your bumper beam with 4...
    view full answer...
  • Does the Curt Hitch CU74FR Fit a 2024 Jeep Gladiator Rubicon?
    Yes, it does! The Curt Hitch item # CU74FR has been confirmed to fit all models of the 2024 Jeep Gladiator including the Rubicon. This hitch is by far one of the easiest to install. It easily attaches to your Jeeps rear bumper with three included bolts. The installation takes only a few minutes. The Curt Hitch item # CU74FR is a class III hitch with a 2" receiver. It has a 5,000 lbs towing capacity and a 500 lbs maximum tongue weight. I have linked an installation video below to help...
    view full answer...

Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B

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