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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 # C56413
Our Price: $110.56
You Save: $19.27
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. 1-833-496-1390 to order CURT custom fit vehicle wiring part number C56413 or order online at 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 (77)
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  • Why etrailer?

CURT Custom Fit Vehicle Wiring - C56413

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


  • Provides a 7-way, blade-style trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 4-pole, 5-pole, and 6-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection point behind the rear driver-side axle along the frame rail
    • Plug in connector
  • Comes with protective cover for 7-way connector
  • Includes zip-ties for securing loose wires


  • 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


This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the driver's-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. 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 plug on your automobile and the 7-pole connector itself - to help prevent corrosion.

56413 Curt T-Connector Vehicle Wiring Harness with 7 Pole Trailer Connector

Installation Details C56413 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector - C56413

Average Customer Rating:  4.8 out of 5 stars   (77 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.

2015 Ford F-150

Very straight forward. Less than 5 minutes to install. Love that it is a direct plug in to the factory harness.

Brett H - 08/16/2022

2012 Chevrolet Volt

Extremely easy to set up with my trailer brakes and camper 12 volt system.
I would recommend this to anyone who needs to add electric braking system.


this harness has worked well - easy to install etc... HOWEVER - it does not include the bracket for a new install. Not ideal.


Thanks for recommending this part. I did need it. Everything works great. It was a great trailering week.
We were happy campers!

2017 Ford F-150

Worked great for 2017 Ford f-150


I installed the 7 pin trailer connector socket in the bumper where the factory socket goes. The wiring harness was quick to install and went together well. I used the included zip ties to secure the extra wiring up and it all looks great and works well.

2019 Ford F-150

Fairly easy to install, watch the videos for help. I installed mine in the bumper where the factory plug would have been. Looks clean and there is a bracket you can bolt to behind the plastic. Had to drop the spare so if you are also installing a hitch be sure to have it all ready so you do not have to drop it twice.


This works perfect on a 2019 Ford F150… I was able to determine that the wiring harness on my truck would except this plug and still let me utilize the four way… Make sure to look at the harness at the rear of the vehicle before you order anything universal… This saved me a lot of time… The hardest part was installing the bracket for the seven way.

2019 Ford F-150

Perfect fit for my 2019 Ford F-150 XLT. It fits like a glove and feels as sturdy as can be. I will always buy hitches from etrailer & Curt.

2018 Ford F-150

My F150 did not come with the tow package. This was the perfect harness. I watched the video and followed the directions exactly. Worked perfect. Didn't need to lower the spare or put on jacks. Just hosed off underneath the day before so I had a semi clean area to work in.

Bracket screws are rusty. I’ll replace with stainless steel.
Rufus - 09/07/2021


This was one of the best experiences I've had dealing with a company...Odelia was so helpful, courteous, and friendly.... She went out of her way to satisfy me as a customer... Thank you


The hardware rusted in less that a month and needed to be replaced with stainless.


My package came in on time.


Easy to install and great product.

2015 Ford F-150

The hitch fit perfectly. It was definitely worthwhile to watch the videos on the installation, as that was hugely helpful.

Really pleased with the quality and finish of the hitch, even though it tucks up perfectly and you cannot really see it.

The price was very reasonable and the hitch arrived in only a couple of days. I did choose to install the 7-way Trailer Connector into the bumper cover, as there is a hole behind the plastic already for the factory connection, as you can see in the pictures. A 2 inch hole saw made quick work of that part.

The T-Connector wiring harness was awesome. This was definitely plug in and ready to go just like the video.

In general, great price and product support. Thank You


Wow! This is a great product! Its plug and play with the right parts. I suggest calling and speaking to someone before ordering this harness because the bracket for the seven pin plug is not included and the one I ordered didn't have the hardware holes in the right place requiring me to spend considerable time reworking it to fit (customer was waiting in the lobby!). If the harness had come with the right bracket, it would have taken 15 minutes to install. Unless you have tiny arms, you must lower the spare and then drill one hole for a ground wire (screw included). Overall, I still rate it as a 5 star because it is a great part and Mariah A. did and EXCELLENT job of getting it to me on short notice. I suggest recommend the correct bracket that fits that plug on the page for this harness.

I recommend the Pollak Mounting Bracket and Installation Hardware PK12711U when a mounting bracket is needed with a 7-Way connector because this mounting bracket has slotted holes for installation, allowing for more wiggle room with the size of the 7-way mounting holes.
-- Etrailer Expert Victoria B - 09/03/2020

2020 Ford F-150

This was a very easy installation just like it says plug and play. I used a 2" hole saw and mounted it on bumper where factory one would have been installed instead of using mounting bracket I purchased with it. It Looks great and took maybe a half hour to install. Very good quality.


Wow. Great customer service. This wiring kit has been installed for a whole year. No issues at all, is stilll tucked away nicely. I even got a flat and had to drop my spare tire, wiring harness was not an issue and was not in the way, sat nicely tucked away.

2019 Ford F-150

Plug and play made it easy


Very good harness

2018 Ford F-150

I have a 2018 Ford F150 XLT no tow package: This harness was easy to connect and setup. In testing the terminals with a meter: I spent a lot of time checking fuses and cabling to the 7pin... The 4pin was active and working. Finally I unplugged the 4pin in troubleshooting, and the 7pin was alive- including voltage at the brake. I was under the impression that the 4 pole would still work depending which was hooked up- with signals going to both. Maybe since I have not connected to a 7pin trailer yet?


The order arrived quickly and exactly as ordered. However, the bracket I. ordered did not have holes that matched the trailer cable connector requiring me to drill for correct fitting. I did have a technical issue which I was helped with by Ricky. He was helpful in trying to solve this problem.

2019 Ford F-150

Great customer service as well as the You Tube videos that explain step by step instructions on how to install any part.


Great product, but I should have waited to purchase since it is now on sale for soooo much less than what I paid for it!


The connectors was a little to wide for the factory connectors to fit , so I took some sand paper and sanded down the edges and it fit perfectly. Easy is the word on the install and it works perfectly. I recommend and if it’s not fitting , just side those outside ridges down and it will slide right in and make a perfect connection . Took less than 10 minutes from start to finish.

Show More Reviews

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

  • 7-Way Trailer Wiring Kit Recommendation for 2018 Ford F-150
    The correct 7-way kit for your 2018 Ford F-150 that matches the rectangular connectors you sent us a picture of is the Curt part # C56413. I attached a picture our installers took that shows this connecting to same connectors.
    view full answer...
    Image 1 for Image 2 for
  • 7-Way Trailer Wiring Recommendation for 2017 Ford F-150
    For your 2017 Ford F-150 we have the 7-way kit part # C56413 as a confirmed fit. This plugs into the trailer wiring connector that is present at the truck frame rail and gives you a functional 7-way. I attached an install video for this for you to check out on a 2018 F-150 as well.
    view full answer...
  • Troubleshooting 12 Volt Power Circuit of 2019 Ford F-150 Trailer Wiring Not Active
    The new Ford trucks like your F-150 that have the smart tow package require a trailer to be connected for the 12 volt power circuit to activate. So what I would recommend you do is try connecting to a trailer and see if the circuit then activates.
    view full answer...
  • 7 Way Connector for 2019 Ford F-150 without Factory Towing Package
    You can install a 7 way connector on your 2019 Ford F-150 by using the Curt T-Connector # C56413, which will plug into the factory supplied 4 way connector plug on your vehicle and give you a fully functioning 7 way connector. If you've got a plastic bumper, I don't see any reason why you would not be able to cut a hole for the plug to be installed next to the license plate holder; however there is not a specific installation kit that makes this possible and you would need to do the cutting...
    view full answer...
    Image 1 for
  • Wiring Harness For 2020 Ford F-150 Without Tow Package
    I am happy to help John. The wiring harness that you need for the 2020 Ford F-150 without a tow package is Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector part # C56413 which will plug right into a plug behind the drivers-side rear bummer and give you a 7-Way plug at the rear of the truck.
    view full answer...
  • 7-Pole Wiring For 2019 Ford F-150 XLT Without Factory Tow Package
    Since you do not have the towing package, you will not have the second part of the trailer wiring kit, but there is a lead on your body harness that will be plug and play with this wiring harness # C56413. It is very simple and I've included a video for you to see how it installs!
    view full answer...
  • Location of Factory Connector For Installing Curt C56413 7-Way TrailerConnector
    Where exactly are you attempting to plug the harness in? Unlike many trailer connectors, the # C56413 doesn't use a round connector. The connector you're looking for is located on the cross-member directly behind the 7-way, it could be partially hidden by the spare tire, so dropping the spare could make it easier to find. I've linked to a video showing where the connector is located, fast forward to the 3:05 minute mark and you'll see the connector I'm speaking of.
    view full answer...
  • Which 7 Way Trailer Plug for 2019 Ford F-150
    Yes. You can install the Curt T-Connector # C56413 on your 2019 Ford F-150 and it will be compatible with your factory brake controller. This will install a fully functioning 7 way connector on your truck to allow you to tow a trailer with brakes. I've linked a review and installation video of this plug for you to check out as well.
    view full answer...
  • Suggested 7 Way Upgrade for a 2020 Ford F-150
    All the 2020 Ford F-150 trucks have the ability to upgrade to a 7 Way. The picture you supplied does look to be the port the Curt # C56413 will connect to. I included an install video we did on a 2019 F-150, but the install will be the same on your 2020.
    view full answer...
    Image 1 for
  • 7-Way Trailer Wiring Kit for 2020 Ford F-150 without Trailer Wiring
    For your 2020 Ford F-150 that does not have the factory 7-way all you need to install one is the part # C56413 that you referenced. Your vehicle does have brake controller wiring currently so this would tie right into what you have now and your brake controller would be active.
    view full answer...
  • Does the Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector Require Programming
    When installing the Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector # C56413 on your 2019 Ford F-150 XLT it should be ready to go after installation. Typically having to program anything involves the brake controller and that typically happens when you are installing an aftermarket brake controller in a truck that has an OEM brake controller. When this happens you will often times need to have your truck flashed by the dealership to be able to use the aftermarket brake...
    view full answer...
  • Plug and Play 7-Way Trailer Connector for 2018 Ford F-150
    To install a 7-way on a 2018 Ford F-150, you'd use the Curt # C56413 which installs as shown in the linked video.
    view full answer...
  • Recommendations For The Best 2 Receiver Hitch For a 2016 Ford F-150
    I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver # 76136 for your 2016 Ford F-150. This receiver hides tucked up under the bumper giving it a factory look. This class III receiver is capable of 900lbs of tongue weight and 6,000lbs trailer towing with a standard ball mount. If you use a weight distribution hitch the capacity increases to 1,000lbs of tongue weight and 10,000lbs total trailer weight. Be sure to consult your Ford dealer to ensure you do not exceed the manufacturer...
    view full answer...
  • Trailer Hitch Receiver For 2019 Ford F-150 XLT
    Yes, the Draw-Tite Max-Frame Trailer Hitch Receiver # 76136 will fit on your 2019 Ford F-150, provided that you do have the factory step bumper on your truck. It is rated for 900lbs of tongue weight and 6,000lbs trailer weight. With a weight distribution hitch the rating is increased to 1,000lbs tongue weight and 10,000lbs of trailer weight. Be sure to contact a Ford Dealer with your VIN number to determine what the maximum rating is for your F-150 and use the lower of the ratings you have....
    view full answer...
  • Can 4-Flat Still be Used on 2018 Ford F-150 After Installing Curt 7-Way 56413
    I reached out to Curt, who told me that the Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector # C56413 will install inline with the 4-way on your 2018 Ford F-150, so you will not have access to your truck's 4-way. That said, if you still need to plug in a trailer with a 4-way you still can, you will just need the Pollak 7 Pole to 4 Way Connector Adapter # PK12716. I have added links to video reviews of both parts for you to check out as well.
    view full answer...
  • 7-Way and Brake Controller Solution for 2018 Ford F-150 without Tow Package
    Your 2018 Ford F-150 without the tow package and 7-way does have brake controller wiring currently so once you have the 7-way part # C56413 installed you'd be able to easily install a brake controller using the truck's factory wiring. The P3 part # 90195 and the install harness part # 22292 would be a really great and easy to install option. This is the most advanced and easiest to use brake controller on the market so I recommend it highly.
    view full answer...
  • Troubleshooting Curt T-Connector Not Working on a 2018 Ford F-150
    What I would do is try bypassing the tee connection on the Curt T-Connector # C56413. If you plug everything back up how it was before you installed this kit then you can test the 7-Way at the back of your 2018 Ford F-150 to see if everything is functioning properly again. If it is functioning properly then the T-Connector needs to be replaced. If it isn't then you'll want to take a circuit tester # PTW2992 and check the OEM wiring from the rear as far forward as you can. While doing...
    view full answer...
  • Do you Have An Installation Video For the Draw-Tite Trailer Hitch Receiver on a 2018 Ford F-150
    I have included a link below for an installation video for the Draw-Tite Max-Frame Trailer Hitch Receiver # 76136 that we installed on a 2018 Ford F-150. Also is a video for the Curt T-Connector Vehicle Wiring Harness # C56413. This will give you a 7-way connector for plugging in your trailer. The Reese Trailer Connector Adapter # 78118 will allow you to plug into a 4-way or 5-way flat trailer if you are pulling a small trailer.
    view full answer...
  • What Brake Controller And Trailer Wiring Kit Do You Recommend For 2015 Ford F-150
    We can help get your so setup with trailer brakes for his 2015 Ford F-150. The first thing that you will need to do is install a 7-way connector to your vehicle. This is necessary because the 7-way is needed to power the brake controller. The Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector, part # C56413, plugs directly into your factory harness at the rear of your truck. Once installed you will have some additional functions - your reverse lights will be mirrored,...
    view full answer...
  • Compatibility Of Hopkins 7/4-Way Connector HM40975 With Curt Vehicle Harness C56143 2019 Ford F-150
    Yes, the Hopkins 7- and 4-Pole Trailer Connector Socket # HM40975 will connect to the the Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector # C56413 on your 2019 Ford F-150. The Hopkins connector has an OEM design and will fit the factory cutout in your rear bumper.
    view full answer...
  • Brake Stoplamp Switch Wire Color For Brake Controller Install on 2016 Ford F150
    You'll be looking for a purple and white wire, but if you're wanting to install a brake controller there is a plug and play option that would require no cutting or splicing. If you look at the installation video I've linked for you, you can see that the brake controller connector is located behind the dash, all you'll need is the correct wiring harness to connect the controller and the vehicle and you'll be good to go. If you're using a Curt brake controller like the # C51120, you would...
    view full answer...
  • Mounting Bracket that Fits 7-Way of Curt 7-Way Kit C56413
    Sorry to hear that the bracket didn't fit. We have the part # PK12711U which has slotted mounting screws which will allow the 7-way of your kit # C56413 to mount up.
    view full answer...
  • Upgrading To a 7-Way Trailer Connection From The Factory 4-Way On a 2018 Ford F-150
    The Adapter 4-Pole to 7-Pole and 4-Pole # 37185 is a universal part that will work on most vehicles and will require you to either run additional wiring for the charge line circuit, brake line and reverse light wires. These can either be new wiring ran on your 2018 Ford F-150 or tap into the existing wiring at the trailer connection harness on your F-150. I recommend using the Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector # C56413 as this will plug into your factory...
    view full answer...
  • Universal 7-Way Connector and Brake Controller for a 2021 Ford F-150 w/ Out the Tow Package
    I would be happy to help you set your 2021 Ford F-150 up with a 7-way connector and a brake controller. Since you do not have the towing package you are going to need the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires item # ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector that mounts easily at the rear of your F-150 with an included bracket. This kit is designed for use on a vehicle with an existing 4-way flat trailer...
    view full answer...
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
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Employee Jeff D
Installed by:
Jeff D
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
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Employee Chris R
Video Edited:
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Employee Wilson B
Updated by:
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Employee Kristina F
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