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Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector

Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector

Item # C56431
Retail:$99.07
Our Price: $57.66
You Save: 42%
Custom Fit Vehicle Wiring

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Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom harness. Connector plugs directly into existing tow connector on your truck - no cutting, splicing or tapping required. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56431 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 7-Way Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (121)
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CURT Custom Fit Vehicle Wiring - C56431

  • Custom Fit
  • 7 Round - Blade
  • Trailer Hitch Wiring
  • CURT

Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom harness. Connector plugs directly into existing tow connector on your truck - no cutting, splicing or tapping required.


Features:

  • Provides a 7-way, blade-style trailer connector at the back of your vehicle to power your trailer's signal lights
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection point behind the driver side rear bumper.
    • Plug in connector
  • Comes with protective cover for 7-way connector
  • Includes zip-ties for securing loose wires
  • Mounting bracket (C58000) sold separately


Specs:

  • Maximum amperage:
    • Stop/turn lights: 10 amps per circuit
    • Tail lights: 10 amps per circuit
    • Reverse lights: 10 amps per circuit
    • Power circuit: 30 amps per circuit
    • Trailer brakes (3 axles / 6 brakes): 20 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 side rear bumper. After plugging in the connector, route the 7-way end of the harness along the inside of your bumper toward the center of your vehicle.


Once installation is complete, the 7-way connector will be stowed beneath your vehicle, near the trailer hitch. If necessary, secure the harness with the provided cable ties.


It is recommended that you use a small amount of grease on all electrical connections - the plug on your automobile and the 7-pole connector itself - to help prevent corrosion.



56431 Curt T-Connector - 7-Blade RV

Installation Details C56431 Installation instructions

Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector - C56431

Average Customer Rating:  4.6 out of 5 stars   (121 Customer Reviews)

Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom harness. Connector plugs directly into existing tow connector on your truck - no cutting, splicing or tapping required.

by:

Great products easy installation



by:

It fits like a glove. Plug and play 35 minutes tops with everything. The only bad thing the zip ties were short. But I'm satisfy with the product and I would recommend it.



by:
Ford Ranger

It worked as described. It arrived very fast. I had it installed in about an hour. My 2021 Ford Ranger is HAPPY.



by:
2020 Ford Ranger

I found it very easy to install, however it did have a lot of extra wire to role up. I did order the HM40975 connecter and installed in the factory postion on the back bumper. the only problem is that my 2020 RANGER came with a 4 pin connecter, but not the factory tow package.So it is missing 3 wires in the wire harness in the truck and only the 4 pins work. I will have to add the other 3 wires myself some time, as I want to get a camper that needs all 7 pins to work.



by:

My installer was very happy I bought the wiring harness from only had good things to say about it. Works great and easy to connect to rental trailers and my trailers.



by:
2019 Ford Ranger

I remember when things weren't plug and play. Those days sucked, lol. Super easy install. Unplug the factory harness, plug in this jumper harness between. On my 2019 Ranger there is a factory cut out in the bumper for a 7-way. So, I used a 1.5" hole saw to make an opening in the plastic bumper cover to flush mount the plug and give it a factory look. Gave it four stars because I'm a stickler for good directions and these didn't specify what the white wire with the ring terminal end is or where to attach it. I know what it is, but what if I didn't?



by:

Harness looks like a factory install. Very good instructions.



by:

This works well and was a fairly easy install. What's excellent is the eTrailer Customer Support. My first one started throwing errors (when breaking, accelerating, etc) with no trailer hooked up. The eTrailer folks had me try a couple of troubleshooting steps, then shipped me a replacement right away (it was about two weeks from warranty expiring!). This was the 4th vehicle I've outfitted with hitches, wiring, etc from eTrailer. Always great service. Won't shop anywhere else.



by:

Easy to use and super easy to install. Not many options for the Rangers, but, this worked exactly as needed. Didn’t need a bracket, I used the stock location in the rear bumper. I drilled it out, drilled the factory bumper back plate and ran 2x 1/4-20 machine screws through it.



by:
2020 Ford Ranger

Fast delivery



by:

Put this kit on my 2020 Lariat ranger. Only complaint was the supplied self taping screw broke off when trying to install and the zip ties was to short. Everything else was very simple easy install. I wanted a factory look so I ordered the Hopkins 7way/4way plug separately.



by:

The quality of the product was good but service was etrailer customer service was horrible. I ordered a hitch and a wiring kit with free shipping. They shipped the hitch, but not the wiring harness as it was out of stock, although when ordering it confirmed that it was in available. There was an alternative for a few dollars more. I had to purchase the comparable item on a separate invoice and pay shipping on it. Contacted the company with no response back. They should have contacted me before shipping and offered the alternative item, or shipped the other item with free shipping. Again, happy with the product, but not the customer service.

Katrina B.

9/28/2022

I am sorry to hear you had such a disappointing experience. It seems that our customer service department has issued you a credit as a courtesy for your situation.



by:

Paid extra for fast shipping and took as long as the free shipping



by:
2020 Ford Ranger

Worked perfectly. My 7pin socket was in very close proximity, so I coiled a pile of wire up. I installed a bumper mounted socket, Ford Part # FU5Z-14489-A versus using the supplied scoket, and the wiring plugged right in. Nice product. I installed my trailer brake controller and this finished it out.



by:

The connector worked great for my truck.



by:

Easy to attach, instructions plane and simple. Item works great no problems.

Andrew

1/6/2023

Its working good



by:
2022 Ford Ranger

The Curt T-connector surpassed my expectations on ease of installation for the plug. The socket part however was a little more time consuming because I decided to mount it in the factory cut out position in the upper bumper instead of utilizing a separately purchased bottom bracket under the bumper..still relatively easy.



by:

For a vehicle specific harness, it’s way longer than it needs to be. There is an unterminated ground wire that’s like, why? Why not terminate that wire against weather? Also, no instructions as to even why it’s there or what to do with it. I hope I’m right in deducing it needed to go to chassis ground, that’s what the wiring diagram I found online indicated. At least the connectors are correct.



by:
2019 Ford Ranger

Excellent all around. Thanks



by:
2020 Ford Ranger

This item was just what I needed I had the Sleeve from Ford but no cable or plugs to install under the truck bumper and this fit right into the factory wiring for my New 2020 Ford Ranger. If you don't have a 7 way trailer plug this kit will fit! Thanks!!



by:

This would get 5 stars if it came with the OEM 7/4 way connector. All Rangers have a place on the number to install that type of plug, but this comes with an oddball that needs an extra bracket to mount to the hitch. I bought the right plug and now have one I don’t need. Otherwise it’s easy t9 install and works just as it should.



by:
Ford

Easy to install! I bought a Ford Motocraft OEM 7pin & regular connector that was Oval shaped to fit the punch out in my bumper. Worked great and was a seamless install!



by:

Worked perfectly. plenty long enough to putvconnector where i needed it



by:
Ford Ranger

This is one of many orders I have placed with etrailer.com. I purchased this for my Ford Ranger. Perfect fit the first try. If you need trailering items for your truck, boat, Jeep, or motorhome this is the place to shop.



by:

The hitch went in without a hitch.The wiring harness plugged in easily. The mounting bracket for the plug-in didn't match the holes but a drill took care of that. Less than 45 minutes to install! All in all, nice.


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Show More Reviews

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

  • Factory Style 4-Way/7-Way Connector For a 2023 Ford Ranger
    The 7- and 4-Pole Trailer Connector Socket # HM40975 can be used in place of the 7-way included with the Curt Wiring Harness # C56431. This will give you the same factory style connector which you can install on your 2023 Ford Ranger.
    view full answer...
  • Will Curt 7-Way for 2021 Ford Ranger Work with Boat Trailer with Surge Brakes
    Your boat trailer has "surge brakes" which use the inertia change of you hitting the brakes to pressurize a master cylinder and apply hydraulic pressure to the brake assemblies to slow the trailer down. So you don't need a brake controller like you mentioned and all you'd need for a 7-way is the part # C56431 that you referenced.
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  • How To Tell If 2020 Ford Ranger Lariat Has The Factory Tow Package
    If your 2020 Ford Ranger Lariat has the factory towing package it will have a factory installed trailer hitch receiver, and a 4-way/7-way connector. If you do not have these components then your truck does not have the factory towing package. To add these components you would need the Curt Trailer Hitch Receiver # C13417, and the Curt T-Connector 7-way Connector # C56431 as both of these components are a confirmed fit for your truck. I included videos of the products mentioned for you...
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  • Can The Redarc Tow-Pro Liberty RED24FR Be Installed On A 2019 Ford Ranger W/ Curt 7-way Connector?
    You can absolutely install the Redarc Tow-Pro Liberty # RED24FR in your 2019 Ford Ranger that has the Curt 7-way Connector Harness # C56431 installed, you will just need the universal wiring harness # RED69FR. While Ford did not run a trailer brake controller port for installing a trailer brake controller like some other vehicles have, they did run the four wires you need. These will be located underneath the dash near the driver side wheel well and will be bundled together. Inside the...
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  • 2021 Ford Ranger XLT Wiring Harness with or without Power Wire
    The Tekonsha wiring harness item # 22124 for your 2021 Ford Ranger XLT uses a power lead because they feel like it's needed but the Curt harness item # C56431 will work just fine and eliminates that extra step during installation. I recommend using the Curt wiring harness. I have linked video reviews for both the Curt and Tekonsha wiring harnesses.
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  • Recommended 7-Way Wiring Harness for a 2023 Ford Ranger
    To add a 7-way connector to your 2023 Ford Ranger you will want the Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector item # C56431. This custom-fit T-connector plugs into your Ranger's wiring harness, which is located behind the driver side rear bumper. This 7-Way connector is compatible with the Curt Echo item # C51180. I have attached a couple of pictures below that will show you what to look for when installing this connector. I have also linked an installation...
    view full answer...
    Image 1 for Image 2 for
  • Recommended Curt Hitch for a 2023 Ford Ranger
    Yes, there is a Curt hitch for the 2023 Ford Ranger. It is the Curt Trailer Hitch Receiver item # C13417. This hitch is custom fit and bolts to your Ranger with included hardware. This is a class III hitch with a 2" receiver. It has a 6,000 lbs towing capacity, and a 900 lbs maximum tongue weight. This towing capacity can be increased to 8,000 lbs when used with a weight distribution system. I have linked a couple of pictures below along with an installation video so you can see what...
    view full answer...
    Image 1 for
  • Recommended Hitch for a 2023 Ford Ranger
    Yes, we do have a hitch for a 2023 Ford Ranger. It is the etrailer Trailer Hitch Receiver item # e63ZR. This hitch is custom fit and bolts to your Ranger with included hardware. I really like the etrailer hitch because it has a matte black powder coat finish which not only offers better rust protection but it helps the hitch blend in below your bumper and trim. This is a class III hitch with a 2" receiver. It has a 6,000 lbs towing capacity, and a 900 lbs maximum tongue weight. This...
    view full answer...
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  • Recommended Trailer Connector for 2019 Ford Ranger with 4 and 7-Way Plugs
    The Curt T-Connector Vehicle Wiring Harness part # C56431 is an excellent option for a 2019 Ford Ranger. It comes with a 7-way trailer connector so in order to add a 4-way as well while keeping the 7-way you'd need to replace the trailer connector that comes with using the Curt T-Connector part # C55774 and then you'd be set since it also comes with a mounting bracket.
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  • Comparing etrailer and Curt Trailer Hitches for 2020 Ford Ranger
    For your 2020 Ford Ranger we have the Curt # C13417 and the etrailer # e63ZR which are both really solid options. These hitches are extremely similar except for their finishes. The Curt hitch # C13417 has a traditional glossy black finish and the etrailer hitch # e63ZR has a modern matte black finish. Otherwise, their capacities and installation are the same. If you were in need of trailer wiring we have the custom fit 7-way part # C56431 as well which I attached an install video for too.
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  • Does Curt 7-Way Wiring Harness Fit 2019 Ford Ranger
    The Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector # C56431 will absolutely fit the connector you have on your 2019 Ford Ranger. If you take a look at your photo as well as the accompanying photo I added from the install video of this harness on a Ford Ranger, you can see the connectors are exactly the same. I do recommend checking out the linked video install of the Wiring Harness # C56431 so you can see how easy it is. I also strongly recommend using Dielectric...
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  • Capacities of Available Curt and etrailer Class III Hitches for 2021 Ford Ranger
    According to the owner's manual, the 2021 Ford Ranger can tow a braked trailer weighing up to 7500 lbs with up to a 750 lb tongue weight. The Curt # C13417 and etrailer hitches # e63ZR have 6000 lb towing/900 lb tongue weight. Additionally, the towing capacites of the Curt and etrailer hitches increase to 8000 lb towing/900 lb tongue weight if you have a weight distribution system. I attached a video of these hitches for you to check out. Although you'll be limited to the 750 lb tongue...
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  • Installing The Redarc Trailer Brake Controller # RED44FR On A 2020 Ford Ranger
    First you'll need a 7-way connection to install the Redarc # RED44FR and we luckily have an installation video of the Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector # C56431 being installed on a 2020 Ford Ranger available and I have attached it for you below. In the video you can see Ryan easily attaches the custom-fit T-connector plugs into the vehicle's wiring harness, which is located behind the driver side rear bumper. Now that you have a 7-way connection port...
    view full answer...
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  • Can An Aftermarket Brake Controller Be Installed On A 2021 Ford Ranger With The Tremor Package
    You can definitely use an aftermarket brake controller on your 2021 Ford Ranger with the Tremor package. Though there is not a port to plug something like the Tekonsha Primus IQ Trailer Brake Controller # TK90160 into, there are 4 wires under your dash specifically for this kind of application. With that being said, not all trucks came with the 7 Way plug on the back, so you may need to add the Curt # C56431 to get this completed. If you truck did not come with the 7 Way, you will also...
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  • Will The Redarc Tow-Pro Elite Require Deactivation Of any Safety Systems On a 2021 Ford Ranger?
    You will not have to turn off any safety systems on your 2021 Ford Ranger Lariat to be able to use the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR. I verified with your owners manual that there are no special steps required for towing with an electric brake controller. It is likely that what you read was in reference to any forward collision system your Ranger has not activating the trailer brakes when the computer activates the brakes. This is due to the computer activating...
    view full answer...
  • Recommended Wiring Harness For A 2023 Ford Ranger
    When installing trailer wiring on your 2023 Ford Ranger I recommend the Curt T-Connector Vehicle Wiring Harness # C56431. The Curt harness comes with a 7-way trailer connector. The harness plugs into your vehicle's wiring harness, which is located behind the driver side rear bumper. To mount the harness you will also need the Mounting Bracket # C58000. It is also recommended that you use a small amount of grease # 11755 on all electrical connections which includes your vehicle and the 7-pole...
    view full answer...
  • Is Curt 7-Way Wiring Kit C56431 for 2019 Ford Ranger Only Available with 7-Way Socket
    We only offer the Curt # C56431 with the 7-way socket that you mentioned. The good news is that if you order this you would have a backup 7-way for in case your current one gets damaged.
    view full answer...
  • How Much Does The Curt 7 Way Wiring C56431 Weigh?
    The Curt T-Connector Vehicle Wiring Harness # C56431 weighs in at 1.5 pounds, so nice and light.
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  • Does The Color Of The Vehicle Impact The Fit & Compatibility Of Trailer Hitches?
    Yes! Even though the Curt Trailer Hitch Receiver # C13417 which is confirmed to fit your 2021 Ford Ranger was installed on a blue truck, it will still work on your white truck. The color of your vehicle does not impact the fit & compatibility of this hitch! Additionally, this hitch has a maximum towing capacity of 6,000lbs, with a maximum tongue weight capacity of 900lbs, however you're going to want to verify with your owner's manual for your vehicle's maximum towing capacity and make...
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    Image 1 for
  • Does 7-Way of 2022 Ford Ranger Fit 7-Way of Casita
    The SAE number you listed J2863 is for a standard RV 7-way blade connector like what Casita would use for their trailer wiring connectors. We've not had any issues with the Ford 7-ways and the ones that would come on a Casita. If you ever needed a replacement on your Ranger the part # HM40940 would plug right into the connector on your vehicle. Or for a new harness and 7-way you'd want the part # C56431.
    view full answer...
  • Recommended Hitch for a 2023 Ford Ranger
    The only differences in the Curt Hitch item # C13417 and the etrailer item # e63ZR is the paint finish and the price. Our house brand hitches are made by Curt and manufactured to the same specifications. Both of these hitches are confirmed to fit a 2023 Ford Ranger. I recommend the etrailer Hitch item # e63ZR. This hitch is custom fit and bolts to your Ford with included hardware. It is a class III hitch with a 2" receiver and has a 6,000 lbs towing capacity. I prefer the etrailer hitches...
    view full answer...
  • Recommended 7-Way Connector for a 2023 Ford Ranger
    Yes, it will. The Curt T-Connector Vehicle Wiring Harness item # C56431 is confirmed to fit all models of the 2023 Ford Ranger with or without the factory tow package. This custom-fit T-connector plugs into your Ranger's wiring harness, which is located behind the driver side rear bumper. It will provide you with a 7-way connector. I also recommend using the No-Drill Mount Bracket item # 18136 and the item # C67UR to secure the 7-way connector to your hitch. This will put it in an easy...
    view full answer...
  • When Installing the Curt C56431 on a 2019 Ford Ranger Does the Factory 4 Way Still Work
    Yes. The Curt # C56431 tees into the existing factory wiring and will leave your factory 4 way connected, so you'll still have the ability to use that for towing as well. I've linked the installation video of this harness for you to have a look at, which shows how this all works.
    view full answer...
  • Will The etrailer Trailer Hitch Receiver Fit With Larger Spare Tire On 2021 Ford Ranger Tremor?
    Yes, the etrailer Trailer Hitch Receiver # e63ZR will fit your 2021 Ford Ranger Tremor. I have included an image sent in with a review showing the Curt # C13417 which is identical in construction to ours with the larger spare tire used on the Tremor. The Curt T-Connector Vehicle Wiring Harness # C56431 will provide you with a 7-way connector which you can mount using a Bracket # C67UR. If you need it to tow a smaller trailer you will need an Adapter # PK12716.
    view full answer...
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video by:
Joshua S
Employee Jonathan Y
Video by:
Jonathan Y
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Kathleen M
Installed by:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Written by:
Kristina F
Employee Ryan G
Test Fit:
Ryan G

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