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  5. 4 Flat
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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 # 56022
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Custom Fit Vehicle Wiring

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Custom Fit Vehicle Wiring 56022 - 4 Flat - CURT
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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. 1-833-496-1390 to order CURT custom fit vehicle wiring part number 56022 or order online at etrailer.com. Free expert support on all CURT products. Guaranteed Lowest Price 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 (15)
  • Q & A (0)
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CURT Custom Fit Vehicle Wiring - 56022

  • 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 tail light converter to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading 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 amps per circuit
    • Tail lights: 6 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 interior trim panels in your rear cargo area. Once you've plugged in the T-connector, run the hot lead up to your car battery. 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 cargo area.


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.


Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of the trailer. This converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.


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.



56022 CURT T-Connector - Surface Mount Technology - 4 Wire

Installation Details 56022 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 56022

Average Customer Rating:  4.3 out of 5 stars   (15 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:

I like that etrailer had a selection of kits for me to choose from. Product came as described, instructions were complete, durability seems fine. Phone contact with customer service was very positive, like walking into an auto parts store with friendly and helpful Parts staff. I refer people to etrailer when and where I can with no hesitation.




by:

This wiring kit was a pain to install. I have installed one other Curt wiring kit, on a different car, that was done totally inside the trunk. Just plug & play. Why a wire has to be run thru the trunk floor, outside the car & all the way up to the battery is beyond me. Running that wire, sealing the exit point from the trunk, zip tying it in place & making sure it would be protected & not near hot or moving surfaces was a total pain. I was crawling around under the car for 3 hours! First I had the car on rear ramps then jacked up from the front. Does it work? Sure it does, but I know from experience that a properly designed kit it MUCH EASIER!!!!


Comments
The reason a power wire is necessary is typically do the factory tail light circuits. Many cars no longer have the amperage capacity on tail light circuits to support both the vehicle and trailer lights, so a separate power feed is needed, like the Nissans in this case. Some vehicles offer tow package ports in the trunk or cargo area that provide a single port that makes setting up for towing easier. Nissan cars were not built with towing as a prominent concern, so the electrical followed suit.
-- Etrailer Expert Patrick B - 10/13/2014


by:

Connection between trailer and car is poor. When I wiggle the connector, lights work intermittently, have to wiggle just right in order for lights to stay on. Looks like I will have to be replacing the two connectors this spring. For the price, this should work flawlessly.


Comments
Have you tried hooking up a different trailer to see if the same thing happens? Its unusual for this to happen with a newer harness unless the connection has been unplugged by grasping the wires instead of the plug itself.
-- Etrailer Expert Mike L - 04/17/2019


by:
2015 Nissan Altima

Product was as advertised. Very easy to use and worked like a champ. Shipped on time no waiting and wondering.




by:

Pretty easy to install. Nice looking. My son did all the work.The wiring needed 12v install which was not easy to find in the trunk so we installed it on the fuse box and ran the line on the floor boards. But it does say to install it to the battery. Oh well. Nice product.




by:
2011 Nissan Altima

The harness was installed on a 2011 Nissan Altima. The online video was especially helpful and gave me an idea of what to expect during the installation. All connectors fit perfectly.




by:

The wiring kit was complete and easy to install. My only concern was removing the tail light lens because I didn't know if I should pull straight out or to the side.




by:

This wiring harness that is almost a plug-n-play unit. I only needed to run a hot wire from the battery to the trunk. Total instal time was about 30 minutes.




by:
2014 Nissan Altima

As with other Curt products it was easy to install and it worked as advertised




by:
2012 Nissan Altima

We installed the wiring as suggested and everything works very well. Thank you.




by:
2010 Nissan Altima

It is working very well, thank you.




by:

FAST GREAT SERVICE. THANK YOU SO MUCH!! !!!!!!!!!!!!!!!!




by:
1997 Ford Ranger

great product




by:

Perfect as always, doesnt get any bett er!!




by:



15
15

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



  • How To Install Curt T-Connector Vehicle Wiring Harness, # 56022, on 2009 Nissan Altima Coupe
    On your 2009 Nissan Altima Coupe, the black wire has to be run directly to the battery to get power. If you attached to the taillight you would only get power when the taillight is on. The black wire is run directly to the battery to protect the vehicles wiring from any damage, if another power source is used the electrical system would be placed at risk. The yellow fuse wire would be connected inline to the black wire to protect the electrical system from any overload. On any vehicle...
    view full answer...
  • How to Route the Power Wire From a Trailer Wiring Harness to the Battery on a 2008 Nissan Maxima
    I have included a link to the CME-PCL-INS sheet and the instructions for CURT Wiring Harness, # 56022. The instructions to run the power wire to the battery are generic in that they do not offer a specific method for routing the wire to the battery. But, I can offer some tips and 3 ways you can route the wire. Method 1: Fastest and Easiest After you have installed the wiring harness according to the installation details you will be ready to route the power wire to the positive battery...
    view full answer...
  • Will Curt T-Connector with 4-Pole Flat Trailer Connector Work with 2007 Nissan Sentra
    The Curt T-Connector Wiring Harness, # 56022, is confirmed to fit your 2007 Nissan Sentra. This wiring harness quickly and easily installs a 4-way trailer connector on your Sentra. The T-connector plugs directly into existing wiring and the powered converter reduces strain on the wiring system and is made using SMT to ensure superior performance. For the brake lights and turn signal circuit the Curt T-Connector can handle 3 amps per circuit and for the tail lights it can handle 6 amps...
    view full answer...
  • Trailer Wiring Recommendation for a 2010 Nissan Altima Sedan
    Both wiring harnesses for the 2010 Nissan Altima Sedan require a power wire ran to the battery and an in line fuse installed. It is absolutely necessary and the trailer wiring will not work without it. More and more cars are being made with thin wiring that is not capable of handling the added power draw of trailer lights. The powered converters virtually eliminate the power draw from the vehicle wiring protecting it and other electrical components from damage. Both wiring harnesses install...
    view full answer...
  • Curt T-Connector and Tow Ready T-One Comparison for a 2014 Nissan Altima
    For your 2014 Nissan Altima, the wiring harness I would choose is the Curt T-Connector Wiring Harness, # 56022, because it is rated to handle a higher amperage draw than the Tow Ready harness. For the brake lights and turn signal circuit the Curt T-Connector can handle 3 amps per circuit and for the tail lights it can handle 6 amps per circuit. The Tow Ready T-One can only handle 2.1 amps for the brake lights and turn signal circuits and 5.6 amps for the tail light circuit. The higher...
    view full answer...
  • Trailer Wiring Harness for a 2000 Infiniti I30
    For your 2000 Infiniti I30 I recommend Tekonsha trailer wiring harness # 119178KIT. It is one of the more simple options and gets all of its power through the tail light wiring on the vehicle meaning it does not require a connection to the vehicle battery. I have included a link to a video showing an example installation on an I30 for you.
    view full answer...
  • Hitch System to Haul a 250 Pound Motorcycle With a 2010 Nissan Altima
    The only class of hitch available for a 2010 Nissan Altima is a Class I hitch like the Draw-Tite, # 24796. Class I hitches have a 1-1/4 inch receiver opening and a 200 pound or less tongue weight capacity. After checking the owner's manual for the 2010, it gives a tongue weight capacity of 100 pounds. You will always want to follow the weight limitations of the component with the lowest weight rating. Towing capacity of a vehicle is determined by many factors including frame structure,...
    view full answer...
  • Troubleshooting Trailer Wiring Harness on 2008 Scion xB
    The correct Curt 4-pole wiring harness for the 2008 Scion xB is their part # 56062. The harness you referenced, part # 56022, is a specified fit for various model years of Nissan Altima, Maxima and Sentra but not your Scion xB. The issue you describe, one trailer light function going off when another is turned on, can often be caused by a bad ground connection at the harness' white wire with ring terminal. A weak ground can let one function work while others do not. A bad ground can also...
    view full answer...
  • Derale 8000 Series Transmission Cooler Part # D13501 for 2008 Nissan Altima
    The hitch itself will provide no problems. It will pull up to 2000 lbs all day long with no issue. Since you are going to be traveling in a hilly area, I would strongly suggest installing a transmission cooler to protect your transmission. The Derale Series 8000 Plate-Fin Transmission Cooler, part # D13501 would be a great choice. The cooler is cheap insurance for your transmission. The installation is fairly straightforward, we have an installation video showing a similar cooler being...
    view full answer...
  • Would the Draw-Tite part # 24801 fit on a 2011 Nissan Altima with Borla Exhaust
    It's hard to say if your Borla exhaust would interfere with the Draw-Tite part # 24801 being installed on your 2011 Nissan Altima. However, I did speak to my contact at Draw-Tite and he informed me that the portion of the hitch that sits between the exhaust tips is 39-3/4 inches. For trailer wiring you would want the Curt Wiring harness part # 56022. For a 1-7/8 inch ball you would want part # A-80, 2 inch ball part # A-82.
    view full answer...
    Image 1 for
  • How to Carry 300 lb Motorcycle with 2007 Nissan Altima
    The only hitch we offer for your 2007 Altima is a Class I hitch, which has a 2000 lb towing/ 200 lb tongue weight (the maximum amount of weight that can be suspended from the hitch) capacity. Using an adapter would lower the tongue weight capacity by half. It's a matter of the structure of the vehicle where the hitch attaches not being strong enough. Attempting to carry that kind of tongue weight would most likely result in the fasteners tearing out of the vehicle and the loss of the hitch...
    view full answer...
  • Will the Weight of a Trailer Hitch Cause Rear Tire Wear on a 2010 Nissan Maxima
    The Curt trailer hitch # C11352 for your 2010 Nissan Maxima weighs all of 35 pounds. No worries about the hitch affecting tire wear or ride height or really anything. If you plan on doing some towing then you will also need ball mount # C45521. For a 1-7/8 inch ball you can use # A-80 and for a 2 inch ball use # A-82. And for trailer wiring you can use # 56022. If you plan on using the hitch for a bike rack or cargo carrier the accessory must be compatible with a Class I trailer hitch....
    view full answer...
  • Hitch and Hitch-Mount Cargo Carrier for Use on 2012 Nissan Altima Sedan
    Thank you for giving us the chance to help you with your cargo needs. We offer several 1-1/4-inch Class I trailer hitches for your 2012 Nissan Altima Sedan and all can be seen on the link at right. All three options share the same 200-lb tongue weight capacity. The Curt hitch # C11352 that you referenced does require you to use a stabilizing strap # 18050 with any non-trailer load, such as a cargo or bike carrier, to maintain your warranty. This particular hitch also requires a bit more...
    view full answer...

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Info for this part was:

Employee Zack K
Video Edited:
Zack K
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Adam R
Expert Research:
Adam R
Employee Kathleen M
Video by:
Kathleen M
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
Employee Brent H
Test Fit:
Brent H
Employee Robert C
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Robert C

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