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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 7 Blade
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
THIS ITEM IS NOT A FIT FOR
1990 Chevrolet Van
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CURT

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

Part Number: C56431
168 Reviews | 70 Questions
In Stock
$72.37
 Custom Fit Vehicle Wiring
Not Confirmed to Fit

1990 Chevrolet Van

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curt custom fit vehicle wiring end connector 7 blade
curt custom fit vehicle wiring trailer hitch plug-in t-connector harness with 7-way connector
curt custom fit vehicle wiring trailer hitch plug-in
curt custom fit vehicle wiring 7 blade plug-in c56431
curt custom fit vehicle wiring end connector plug-in c56431
curt custom fit vehicle wiring trailer hitch end connector

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In Use/Installed

2019 ford ranger custom fit vehicle wiring curt end connector plug-in c56431
2019 ford ranger custom fit vehicle wiring curt trailer hitch plug-in on a
2019 ford ranger custom fit vehicle wiring curt end connector 7 blade on a
2019 ford ranger custom fit vehicle wiring curt end connector 7 blade on a
2019 ford ranger custom fit vehicle wiring curt trailer hitch 7 blade t-connector harness with 7-way connector
2019 ford ranger custom fit vehicle wiring curt trailer hitch 7 blade c56431
2019 ford ranger custom fit vehicle wiring curt end connector plug-in c56431
2019 ford ranger custom fit vehicle wiring curt end connector 7 blade c56431
2019 ford ranger custom fit vehicle wiring curt trailer hitch end connector t-connector harness with 7-way
2019 ford ranger custom fit vehicle wiring curt trailer hitch plug-in on a
2019 ford ranger custom fit vehicle wiring curt 7 blade plug-in c56431
2019 ford ranger custom fit vehicle wiring curt trailer hitch 7 blade t-connector harness with 7-way connector
2019 ford ranger custom fit vehicle wiring curt trailer hitch plug-in t-connector harness with 7-way connector
2019 ford ranger custom fit vehicle wiring curt trailer hitch end connector on a
2019 ford ranger custom fit vehicle wiring curt end connector 7 blade c56431
2019 ford ranger custom fit vehicle wiring curt 7 blade plug-in c56431

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Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector customer photo
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector customer photo
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector customer photo
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector customer photo
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector customer photo
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector customer photo
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector customer photo
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector customer photo
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector customer photo
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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 (168)
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CURT Custom Fit Vehicle Wiring - C56431

  • 7 Blade
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • Plug and Lead
  • CURT
  • No Converter
  • Visible

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

Similar to Tekonsha 22124

Installation Details C56431 Installation instructions

This Product Fits The Following Vehicles






Customers Who Purchased This Custom Fit Vehicle Wiring Also Bought...



Customer Satisfaction Score:

Ratings & Reviews

4.6

168 reviews
5 Stars
(132)
4 Stars
(21)
3 Stars
(2)
2 Stars
(2)
1 Star
(11)
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by:
this was the best addition i have added to my truck. very easy to install no wires to cut or splice just plug it in
by:
This item is listed as being compatible with the 2019 Ford Ranger. It is in fact not compatible with this truck due to a Ford safety feature which prevents power from reaching the controller to properly configure it. Curt (or etrailer) should actually test their product on vehicles before claiming compatibility.
Nick S. profile picture
Etrailer Expert

Nick S.

9/15/2025

There have been issues with Ford and the new PWM wiring that they incorporate into their vehicles. With that said I have seen certain things work and not work in Rangers, even the same year Ford's some work and some don't. We have had the chance to have this installed and used on a 2019 Ford Ranger without issue. There are sometimes settings that are able to be made by Ford to fix that issue but that would be something the dealer would need to fix.

by:
2023 Ford Ranger
Easy installation. Fairly simple and straightforward.
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?
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by:
2021 Ford Ranger
The fit and finish was excellent! Installation was very easy especially if you have an extra pair of hands to help lift one side while you bolt the other. Only thing I had to do extra was lower my spare tire underneath and that’s because I have a 2021 Ranger XLT Tremor which has a larger spare tire. Other than that it was a breeze to install. I also added the 7 pin Curt trailer connector that was literally plug and play. The 7 pin connector came with plenty of length to pretty much place the connection socket anywhere I wanted. The class IV receiver came with a tab welded in so instead of cutting out the pre marked section in the bumper, I bought a $5 bracket mount from Autozone and it mounted very clean. Actually going to my brothers house today to hook up to his travel trailer to see if everything is working as it should. My Ranger Tremor came without the tow package but it does have the bumper ball mount that’s capable of 3500lbs and a factory equipped 4 pin trailer hookup. I was nervous that the included rear tow hooks would interfere with the receiver hitch installation but I found out during the installation that the rear hooks are welded to the factory bumper bracket and were nowhere near the receiver hitch installation points. If you’re on the fence about this both of these products (the receiver hitch and wire adapter harness) don’t be, you do not need to be a mechanic to install either one. I was don’t in about 20 minutes including the wire adapter 7 pin.
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.
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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.
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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.
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by:
Toyota Echo
Easy to install. I used this in conjunction with a Curt Echo Bluetooth brake controller. Had no issues, everything worked as expected.
by:
Easy to do thank you for the video that make it easy to install
by:
2010 ford Ranger
It fit my ford ranger 2021 perfectly! Now I can back up my boat without the breaks engaging 10 out of 10
by:
Easy to install and works as it should.
by:
Great product. Easy to install
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. profile picture

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:
Excellent item and easy installation.
by:
2021 Ford Ranger
Be aware you need a bracket and hardware sold seperately to connect to receiver hitch. Also the harness is custom made for the ranger so I do not undertand why the wire is so long. Had to bundle up and zip tie excess(several feet) above hitch.
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:
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:
It worked great. I bought another brand, and it didn't work.
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:
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:
Works as advertised. Plug and play. Easy to install. If you're wondering, buy it. It'll do the trick.
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 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:
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.
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See what our Experts say about this CURT Custom Fit Vehicle Wiring

Do you have a question about this Custom Fit Vehicle Wiring?
  • Parts Needed To Tow Nucamp Tab 360 Camper With 2022 Ford Ranger
    Hey Jesse, Cool name. Correct spelling too lol. You came to the right place. I will go into this assuming your 2022 Ranger has no trailer hitch or trailer wiring connection of any kind. So first, for the trailer hitch I recommend the Curt Class 3 Hitch # C13417. It has a 2" receiver and 6,000 lb towing capacity. More than enough for your nucamp tab 360 which looks like would weigh between 3,000 and 4,000 lbs max depending how you have it loaded. Then for your wiring harness use the...
    view full answer...
  • Difference Between the Curt T-Connector and the Tekonsha T-One Wiring Harness
    Clive, realistically there is no difference between the Curt T-Connector # C56431 and the Tekonsha T-One # 22124. The only real difference is one is made by Tekonsha and one is made by Curt. The Curt also does come with Zip ties and a protective cover for the plug.
    view full answer...
  • Troubleshooting Lights With Hitch Cover and Curt Harness on 2019 Ford Ranger
    The issue is almost certainly with the hitch cover that you are using after you installed with the Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector # C56431. A number of hitch covers have been known to wreak havoc with Ford trucks and cause faults in the dash when used so I recommend removing the hitch cover and the issue will abate.
    view full answer...
  • Parts Needed to Install 7-way on 2019 Ford Ranger without Towing Package
    Hey Steve, we have a 7-way kit that was designed specifically for your 2019 Ford Ranger without the factory tow package with the Curt 7-way part # C56431. This installs pretty easily and does not require any additional wiring to be complete and functional. Does your trailer have brakes?
    view full answer...
  • What 7-Way Harness do You Recommend for My 2017 Ford Ranger?
    I did some research on the 2017 Ford Ranger. It looks like the United States did not start producing the Ranger here until 2019. Although, it looks like Australia did come out with a 2017 version. I just wanted to confirm that you are looking for a 2017 model. Thanks!
    view full answer...
  • Recommended Hitch for a 2023 Ford Ranger
    The best hitch for your 2023 Ford Ranger is going to be the Curt Hitch item # C13417. This hitch is custom fit and bolts to your Ranger with included hardware. I really like the Curt hitch because it installs behind your rear bumper and the crossbar is completely hidden. 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. That can be increased to 8,000 lbs when used with a weight distribution system. I have linked a couple...
    view full answer...
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  • Recommended 7-Way for a 2024 Ford Ranger
    Chad, unfortunately there is not a plug and play option to add a 7-way to your 2024 Ford Ranger. You'd need to use the Universal Installation Kit for Trailer Brake Controller # ETBC7 which will plug into an existing 4 pole connector, and splice into your vehicle's wiring. If you also don't have a 4-pole, then you need to add one before the 7-way with the 4-Way Flat Trailer Connector w/ 48" Harness and Wire Taps # 118001.
    view full answer...
  • Parts Needed to Add a 7-Way to a 2020 Ford Ranger
    Hey Emiliano, What you're needing is the Curt T-Connector Vehicle Wiring Harness # C56431. This is a simple plug-in installation just behind the driver's side of your back bumper and it enables you to have a fully-functional 7-Way like you're looking for. I also recommend checking out the mounting brackets # C83DR and # PK12711U for a quick and easy way to secure the 7-Way to the back of your Ranger. We had a chance to install this wiring kit on a 2020 Ranger so I'm linking that to this...
    view full answer...
  • No Power On Charge Line Circuit Of Curt Vehicle Wiring Harness Installed On a 2020 Ford Ranger
    You will want to check the fuse for your trailer charge circuit. As your 2020 Ford Ranger did not include a factory 7-way the fuse may have been left out of the fuse block. You will need to locate the fuse box in your engine compartment to check for the fuses. Your owners manual will help you to identify where the box is and which fuses you will need to check if they are in place and not damaged. The fuse box you need is located directly behind the battery. You will need to check for...
    view full answer...
  • Does the etrailer Hitch e63ZR Fit a 2023 Ford Ranger Tremor?
    Hey Paul! The etrailer Hitch item # e63ZR, you were looking at, will definitely fit the Tremor model of your 2023 Ford Ranger. The receiver is going to sit right beneath the tow hooks on your rear bumper. This hitch is custom fit and bolts to your truck with included hardware. It is a class III hitch with a 2" receiver that has a 6,000 lbs towing capacity and a 900 lbs maximum tongue weight. If you plan on towing a trailer, you'll also want the Curt T-Connector Vehicle Wiring Harness...
    view full answer...
  • Parts Needed To Tow A 3,300lb Trailer With A 2024 Ford Ranger
    Hey John, The common consensus on capacity is that you should really only use 80-85% to give yourself a margin or error. At 3,300lbs you'd be at roughly 94% capacity so you still technically could but it's likely going to sag the rear suspension and be tough to pull. Even though Rangers are pretty well known for being overloaded and powering through I'd recommend adding in a bit of suspension enhancement or using a weight distribution hitch to help control the trailer and keep it tracking...
    view full answer...
  • Parts Needed for a Ford 2020 Ranger Brake Controller
    We have the parts you're looking for! It looks like Ford is using the Redarc Tow-Pro Elite, part # RED44FR, as the brake controller for a 2020 Ford Ranger. If your Ranger has a factory 7-way, then the harness you need to install this brake controller is the Plug-and-Play Harness, part # 331-TPH-007. This will allow you to easily hook up the Tow-Pro Elite. I've linked to a video review of this harness for you to look at. We also have the controller and harness bundled together, which I've...
    view full answer...
  • Best Way to Install 4-Way/7-Way Wiring Harness on a 2019 Ford Ranger
    Sounds like you've done a great job at installing the Redarc Tow-Pro Elite # RED44FR, and that you're on the right track when it comes to installing the Hopkins Endurance Multi-Tow Plug # HM47180 on your 2019 Ford Ranger! To wrap up your installation I actually recommend picking up the Curt T-Connector Vehicle Wiring Harness # C56431 and then removing the 7-Way plug and replacing it with the Hopkins 4-Way/7-Way since they both have the US CAR connector at the back. Simply unplug the Hopkins...
    view full answer...
  • Wire Color Code for Curt 7-Way Wiring Harness for Ford Ranger
    The backup lights wire you are looking for in the Curt 7-Way Harness, # C56431, is the Red wire. If you test that wire and find that it doesn't have any power, then you will want to check to make sure there is a 10 amp fuse in slot 34 in the engine compartment fuse box. The tow package back up lights are on their own fuse and sometimes manufacturers are known to forget that fuse from time to time. The color code for this harness is as follows Black - 12 volt Battery Power Brown - Tail...
    view full answer...
  • Recommended Trailer Harness Wiring For A 2022 Ford Ranger
    If your 2022 Ford Ranger has the factory tow package then you'll just need the T-One Vehicle Wiring Harness with 7-Way Trailer Connector # 22124. This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located beneath the vehicle, on the driver's side. Once installation is complete, the 7-way connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket like # 18138 is recommended to keep the connector secure. If you do not have...
    view full answer...
  • Can the HM40975 Be Used on a 2021 Ford Ranger?
    From all the info I could find, the 2020 Ranger and the 2021 Ranger both use the same stock bumper. With that being said, the 7 Way plug that is included with the Curt # C56431 can definitely be replaced with the 7 Way plug from the # HM40975.
    view full answer...
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  • 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...
    Image 1 for
  • 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 7-Way Connector for a 2023 Ford Ranger
    Yes, there is! To add a 7-Way to your 2023 Ford Ranger without the factory tow package 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. I have linked an installation video below to help you get it set up.
    view full answer...
  • Recommended 7-Way Connector for a 2023 Ford Ranger
    It's the same harness for both. That's just how its categorized on our website. To add a 7-way to your 2023 Ford Ranger you will want the Curt T-Connector Vehicle Wiring Harness item # C56431. This custom-fit T-connector plugs into your Ranger's wiring harness, which is located behind the driver's side rear bumper. I 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 to reach spot and prevent...
    view full answer...
  • 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...
    Image 1 for Image 2 for
  • How To Install Redarc Tow-Pro Elite In 2019 Ford Range Without Factory 7-way Connector
    Thank you for purchasing the Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector # C56431 through us! You can absolutely install the Redarc Tow-Pro Elite # RED44FR on your 2019 Ford Ranger. While there is not a factory trailer brake controller port, Ford did run the wires needed under the dash. You should find a bundle of 4 wires with blue tape near the driver side wheel well underneath the dash. The 4 wires should be blue, yellow/red, white/purple and white. You will...
    view full answer...
  • 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...
    Image 1 for
  • Recommended Hitch for a 2021 Ford Ranger Tremor
    The Curt Trailer Hitch item # C13417 is a confirmed fit for your 2021 Ford Ranger Tremor. It is also the best hitch receiver we have available for your Ranger and I highly recommend it. This hitch is custom fit and attaches with included hardware with no welding required. It has a gross towing capacity of 6,000 lbs and a maximum tongue weight of 900 lbs. I also recommend the Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector item # C56431. This wiring harness plugs directly...
    view full answer...
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Info for this part was:

Employee Mike L
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Employee Jameson C
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Employee John H
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John H
Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video by:
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Employee Kathleen M
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