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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 4 Flat
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
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2020 Toyota 4Runner
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CURT

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

Part Number: 56014
27 Reviews | 15 Questions
In Stock
$37.52
 Custom Fit Vehicle Wiring
Not Confirmed to Fit

2020 Toyota 4Runner

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curt custom fit vehicle wiring 4 flat plug-in t-connector harness with 4-pole trailer connector
curt custom fit vehicle wiring trailer hitch 4 flat t-connector harness with 4-pole connector
curt custom fit vehicle wiring end connector 4 flat 56014

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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 - no cutting, splicing or tapping required. 1-800-940-8924 to order CURT custom fit vehicle wiring part number 56014 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 (27)
  • Q & A (0)
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CURT Custom Fit Vehicle Wiring - 56014

Highlights

  • Custom Fit for Your Vehicle: Works with your vehicle's wiring
  • Tow-Ready Setup: 4-way flat connector powers trailer turn, stop, and running lights.
  • Plug-and-Play Install: T-connectors plug in behind tail lights—no cutting or splicing.
  • Simple Power Source: Draws power from vehicle tail lights, no battery wire needed.
  • Clean, Reliable Connection: Factory-style plugs help prevent shorts and corrosion.
  • Upgrade Path: 4-way easily adapts to 7-way setups for trailers with brakes.

Features to know about

Installs Without Cutting or Splicing: Plug-In Harness

Wiring a trailer can be messy if you have to cut or tap into the factory wiring, but this Curt T-Connector skips all that. It plugs in behind the tail lights to give you a working 4-pole flat trailer connector. No splicing, no tracing wires—just plug in the connectors, secure the ground, and you’re ready to tow.

Covers the Basics for Safe Towing: 4-Flat Connection

The 4-flat connector powers the essentials—turn signals, brake lights, and running lights—so your trailer stays visible and compliant on the road. It’s the standard connection for small and mid-size trailers and keeps everything working in sync with your vehicle’s lights.

No Battery Wiring Needed: Simple Power Hookup

Some wiring kits require you to run a line all the way to the vehicle’s battery, but not this one. The Curt harness draws power directly from the tail light circuits, so setup is faster and easier with fewer wires to route.

Keeps Circuits Clean and Reliable: Solid Ground and Corrosion-Resistant Contacts

Running light or signal problems often come down to poor grounding or corroded contacts. This harness secures firmly to a clean metal surface for a solid ground and uses weather-resistant connectors that keep the signal steady. That means fewer issues with blown fuses or flickering lights down the road.

Specs

Electrical Specifications

  • Connector Type: 4-Pole Flat Trailer Connector
  • Converter: No Converter
  • Tow Package Compatibility: No Tow Package
  • Connection Method: Plug-In
  • Lead Type: Plug and Lead
  • Wiring Functionality: Activates trailer turn signal lights, stop lights, and running lights

Compatibility

  • Vehicle End Connector: Vehicle-specific T-Connector design
  • Installation: Plugs inline with vehicle taillight connectors; no cutting or splicing required
  • Applicable Vehicles: Confirmed fit for 2010–2011 Ford Focus, 2011 Ford Ranger, 2012–2013 Chevrolet Camaro

56014 CURT T-Connector - 4 Wire

Installation Details 56014 Installation instructions

This Product Fits The Following Vehicles






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



Customer Satisfaction Score:

Ratings & Reviews

4.9

27 reviews
5 Stars
(24)
4 Stars
(2)
3 Stars
(1)
2 Stars
(0)
1 Star
(0)
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by:
2012 Chevrolet Corvette
Simple plug and play,no problems. Works great on my 2012 Corvette.
by:
Fairly easy installation when you put the ends in through the tail light hole it's pretty tight some of them I had to turn if that makes sense to get them to fit through the hole. Everything lined up good worked okay fairly fast shipping
by:
Great service, great product, good timing. Thank you
by:
2009 Ford Focus
Hello etralier. I wanted to take the time and say thank you for everything! I was on a deadline returning to Washington from Missouri. The hitch and wiring harness I ordered for my 2009 Ford Focus were top quality as advertised. I received the hitch promptly as guaranteed within 24 hours. The instillation went exactly as your video showed, which was very helpful by the way. I was particularly impressed with the wiring harness. It was literally plug and play after I figured out how to remove the tail light assemblies. A video on that would be helpful. I towed an overloaded 4 by 8 foot U-Haul trailer 2000 miles and did not have one problem with your product!!! I will definitely be looking at your other products in the future.

Sincerely Dave.
David H. profile picture

David H.

10/4/2018

Every thing continues to work great! Thanks

by:
2011 Ford Ranger
Had my doubts about the harness when I ordered it,but just as your video says very easy to install and solved my problem!! Thank you e- trailer!!
Tony B. profile picture

Tony B.

5/20/2024

Time flys by, wiring harness has now been installed for a year now, was easy to install and have no issues at all, still working fine! No complaints at all, great product!!

Chris R. profile picture
Etrailer Expert

Chris R.

5/23/2024

@TonyB The days are long but the years are short.
by:
This wiring harness fit perfect and was very easy to install, the hardest part is removing the interior trim pieces in the trunk to get to the tail light assembly. I have been using this connector for over a year now without any failures on the lights of my boat trailer
by:
2008 Chevy Corvette C6
This wiring loom is Great! It really is literally just "plug and play" - Very easy to install. This is the way to go unless you require something unusual or custom. With my 2008 C6 I didn't have to go into the interior of the car to find a ground. Mine was right on the frame just inside the the bumper and easily accessible with the tail light lenses removed. You might want to buy and put some wiring protector around the loom as it passes near the exhaust area just in case.
by:
Installation was easy and it works perfectly.
by:
2009 Ford Focus
Best prices period! Super fast shipping. Purchased a hitch and wiring. Very well constructed, high quality and extremely durable. Highly recommend etrailer.com. I will be a repeat customer.
by:
Used to pull kayak on trailer with small car instead of pickup due to high gas prices. Works great so far.
by:
fast delivery excellent quality and worked perfectly. always a good experience with etrailer
by:
Works great, plug and play installation.
by:
Everything was just as described. Easy to install. Fast shipping.
by:
Great connector, easy to install.
by:
Fit perfect and easy instruction Les and great follow up by E-Trailer as always
by:
2009 Ford Focus
Great products super fast shipping!
by:
Works perfectly
by:
2010 Ford Focus
Very easy to install.
by:
Works great, truely plug & play.
by:
Very Impressed with t Justin
by:
2008 Chevrolet Corvette
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2007 Ford Focus
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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?
  • Can I Tow Over 2,000 lbs w/ a 2011 Ford Focus?
    No, and neither is your Focus. I'm not sure which model your 2011 Ford Focus is but none of them have a towing capacity over 2,000 lbs unless yours has a diesel engine. The Curt Hitch item # C11319 is a class I hitch which means it tops out at 2,000 lbs. The only other hitch available is the Draw-Tite item # 24805 but it's got the same specs. Since you are planning on towing you will also need a wiring harness item # 56014 and a ball mount kit item # e47DR. If you have any additional...
    view full answer...
  • Does Hopkins Trailer Wiring Harness HM11140495 Fit 2012-2013 Chevy Camaro
    Hey Kent, I checked with Hopkins and you are correct that the kit 40495 that you referenced is correct for a 2012-2013 Chevy Camaro. This is our part number # HM11140495. Based on that the Curt part # 56014 that you referenced would also work on same Camaros.
    view full answer...
  • 4-Way Trailer Wiring Kit for 2011 Ford Ranger that Doesn't Require Wiring to Battery
    Hey Michael, we have just what you are looking for with the Curt trailer wiring kit part # 56014 for your 2011 Ford Ranger. This plugs inline with the taillight connectors of your truck and gives you a 4-way without requiring you to run any wires up to the vehicle battery.
    view full answer...
  • How to Add a 4 and 7-Way Trailer Connector to a 2011 Ford Ranger
    The best option I have for you to add a 4-way trailer connector to your 2011 Ford Ranger is with the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 56014. The reason that this is the best option is because it does not require any cutting/splicing, it will just plug in behind each of your taillights. If the trailer you will be towing with your Ranger has brakes then you will also need both a 7-way trailer connector and a brake controller. For a 7-way,...
    view full answer...
  • Trailer Hitch Receiver Fit for 2007 Ford Focus SES Hatchback
    I checked with Curt for you, and can verify the hitch that fits your 2007 Ford Focus SES Hatchback is indeed the Curt Trailer Hitch Receiver # C11294. If you plan on doing some light towing with the hitch there are a few more parts you'll need, starting with the Curt T-Connector Vehicle Wiring Harness # 56014. For towing, you'll also need Curt Drawbar # C45521, Pin and Clip # F-4, and either 1-7/8" Hitch Ball # A-80 or 2" Hitch Ball # A-82. I've added a link to the instructions for...
    view full answer...
  • Troubleshooting Trailer Wiring that Dims When Headlights Come On
    Normally if the lights dim on trailer wiring after activating the head lights or running lights of the vehicle that means you need a better ground for the trailer's wiring. Typically cleaning up where the ground wires attach to the truck frame will take care of this. Other option is run a jumper wire from the grounds of each light back to the main ground wire of the trailer harness as well. Sounds like you have trailer wiring installed on your 2011 Ford Ranger already but the Curt harness...
    view full answer...
  • Installation Instructions for the Curt Wiring Harness # 56014 on a 2011 Ford Ranger
    As soon as someone brings in a 2011 Ford Ranger and wants to have the # 56014 installed on it we will have a video of it on our site. In the mean time you can check out the installation instructions link that I attached that has color pictures that will walk you through the install process of this harness.
    view full answer...
  • Who Can Install a Trailer Hitch on a 2005 Chevy Corvette Convertible
    A motorcycle purist would say Ride that hog to Sturgis! But you and I know that is not always an option. Plus there is something about a Vette towing a Harley that is awesomely American. Talk about turning some heads! I checked with Curt and they have a Gold level installer at the Sears at the Lima, Ohio shopping mall who could install hitch # C11034 on your 2005 Chevy Corvette. A trusted mechanic or RV dealer with a service center could also perform the installation. Please note that...
    view full answer...
  • Trailer Running Lights Blow Fuse on Tow Vehicle When Connected
    What you are describing is a short circuit. The short could be anywhere from the vehicle side connector back to the trailer tail lights. First, disconnect the trailer from the tow vehicle. Next make sure that the vehicle side connector is clean and free of corrosion inside and out. I have also included a link to a help article explaining wiring troubleshooting. On the trailer side, check its connector and make sure it is clean and free of corrosion inside and out. Next you will need to...
    view full answer...
  • Towing Components for 2011 Chevy Corvette Grand Sport
    The Curt Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4" # C11380 does come with the mounting hardware needed for installation. This will not fit the dual mode exhaust but will fit all other models. The dual mode is the center not the outside. This will use the Curt Class II Drawbar - 2-5/8" Rise, 3-1/4" Drop - 7-1/4" Long - 3,500 lbs # C45521 with hitch pin # F-2 and Hitch ball # A-82. The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 56014 is what...
    view full answer...
  • Troubleshooting Running Lights Circuit on Factory 4-Pole Wiring on 2011 Ford Ranger
    The best way to evaluate the operation of the factory 4-pole wiring harness on your 2011 Ford Ranger is to use a circuit tester like # PTW2992 but there are also checks you can do without a tester. It is possible that you may have just a corrosion problem on your 4-pole, and this is easy to check. Inspect the metal contact surfaces for any signs of even slight greenish or whitish discoloration. Pay particular attention to the pin for the brown (taillight) wire. Clean the contacts as necessary. Another...
    view full answer...
  • Will Curt Trailer Hitch Fit a 2006 Chevy Corvette with Corsa Cat Back Exhaust
    Trailer hitches including # C11380 are designed for and tested on stock vehicles so I cannot say for sure if it will fit with aftermarket exhaust installed on your 2006 Vette. But if the new exhaust has the exact same dimensions as the stock exhaust and installs in exactly the same way then the hitch would fit. If you plan on doing any towing with the hitch then you can use 1-7/8 inch ball mount # C45571 or 2 inch ball mount # C45572. And for wiring you would need # 56014 .
    view full answer...
  • Troubleshooting Truck that Trailer Running Light Fuse Blows When Headlights are Turned On
    Sounds like you have a short on the trailer running light circuit of your 2004 Chevy Silverado. First check the trailer connector pins for corrosion or bend pins as that can easily cause a short. Next check the back of the connector looking for any cut or exposed wire there and fix as necessary. I attached a help article on troubleshooting 4-ways as well that will have more troubleshooting tips as well.
    view full answer...
  • What Lighting Circuits Does Curt Trailer Wiring Harness for 2011 Ford Focus Activate
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 56014 for your 2011 Ford Focus will activate a trailer's turn signal lights, stop lights, and running lights.
    view full answer...
  • Would Short in Trailer Wiring Damage Vehicle Wiring in 2010 Ford Focus
    Since the Curt trailer wiring harness part # 56014 that fits your 2010 Ford Focus draws power from the vehicle taillights for the trailer wiring it would potentially pop a vehicle taillight fuse in the event of a trailer wiring short. We do have a kit that also fits your vehicle that has circuit protection with the Hopkins part # HM11140495 which wouldn't damage your vehicle wiring in the event of a trailer wiring short.
    view full answer...

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


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B

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