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  1. Custom Fit Vehicle Wiring
  2. CURT
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  4. Custom Fit
  5. Trailer Hitch Wiring
  6. Powered Converter
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
CURT

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

Part Number: C56339
In Stock
$52.86
Retail:$87.95
You Save: 40%
Custom Fit Vehicle Wiring

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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. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56339 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 (23)
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CURT Custom Fit Vehicle Wiring - C56339

  • 4 Flat
  • Custom Fit
  • Trailer Hitch Wiring
  • 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
  • 1-Year limited warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your rear cargo area. You will have to remove the trunk floor coverings, rear scuff panel, and felt liner to access this harness. Once you've plugged in the T-connector, run the hot lead 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 rear 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.



56339 Curt T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C56339 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56339

Average Customer Rating:  4.8 out of 5 stars   (23 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:
2016 Nissan Altima

the hitch itself was easy to install. the wiring not so much. needed a better video on how to install the wiring. also it wasn't long enough and we had to purchase more from a local auto parts store.

however, all in all i would definitely recommend the hitch!

Karen profile picture

Karen

4/29/2021

great!



by:
2017 Nissan Altima

I bought a 2017 Altima and wanted to be able to tow a small trailer. Reading a bit about new cars and the low power needed for the LED lights used on the vehicle, I chose not to tap into the wiring harness as the only means of supplying power to the trailer. The C56339 Curt wiring harness has the same style molex connectors as the vehicle and made the splice as simple as unplug-plug-n-play. There was ample wire supplied to make the connection at the battery. The plastic rocker panels on my vehicle were used to route the wire from rear to front. Weatherproof fuse holder gave another level of comfort with this product. The instructions provided a clear means of avoiding any confusion about the wiring and were vehicle specific about how to locate the connectors. Not a hiccup in the year that this has been on my vehicle.



by:
2016 Nissan Altima

A good product! This is the second hitch I have installed using etrailer and it went as well as the first. Not being a super skilled Tech it took longer than expected, but for me it was a project that needed to be done, and I enjoy a good project when it comes together, no matter if it took a little longer due to an average person's tool inventory and simple jack stands and floor jacks. The instruction videos are the best I have seen as of yet. If you enjoy working with your hands, I recommend etrailer products!



by:

The trailer wiring kit fits my vehicle perfectly. Step by step installation instructions are easy to follow. Would recommend this brand to anyone doing the trailer kit themselves



by:
2023 Nissan Altima

Looks like a good quick way to wire the trailer plug to our car.only one I could find to fit our new car a 2023 Altima the rest only went to the 2022 model. It was a quick and easy way to order
.



by:
2018 Nissan Altima

It was easy to install



by:
2017 Nissan Altima

Easy plug and play. The hardest part is running the wire to the battery without a lift.



by:
2017 Nissan Altima

Everything was perfect with this kit! The videos made it super easy to follow! trailer has numerous great products and they stand behind them!!



by:

Takes a little time and patience. Be sure to watch videos on how to get thru the firewall.



by:
2016 Nissan Altima

Ordered arrived in 4 days
2 hours to
mount on car because of good directions
Sale price was better than any in my area



by:
2016 Nissan Altima

This plug and play works very well. Super easy to install. Well purchase again.



by:

Yes I do like it works good and easy to install thanks



by:

Nice ! Did it my self in less then an hour. plug n play. I love it.

Thanks Bill.



by:

Great product, fast shipping



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2023 Nissan Altima



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

  • Recommended Trailer Hitch Receiver For a 2016 Nissan Altima
    Currently we only have 1-1/4" trailer hitch receivers for your 2016 Nissan Altima. I recommend the Curt # C11352 over the Draw-Tite # 24796 which I see you found. I prefer the Curt as they have added gussets for strength where the mounting flanges bend to attach to the frame. I recommend installing the 4-Way # C56339 when you install the receiver. This will allow you to connect to most small trailers you might tow and also for Auxiliary Lights # C53201 on a hitch mounted accessory such...
    view full answer...
  • Recommended Hitch for a 2024 Nissan Altima
    Yes, I can! To add a hitch to your 2024 Nissan Altima, I recommend the Draw-Tite item # 24796. This hitch is custom fit and bolts to your Nissan with included hardware. It is a class I hitch with a 1-1/4" receiver. It has a 2,000 lbs towing capacity and a 200 lbs maximum tongue weight. I have linked an installation video below so you can see how to get this hitch set up. If you are planning on towing you will also need a wiring harness item # C56339 and the Draw-Tite Drawbar item # 3593...
    view full answer...
  • Recommended Hitch for a 2024 Nissan Altima
    I would be happy to! To add a hitch to your 2024 Nissan Altima, I recommend the Draw-Tite item # 24796. This hitch is custom fit and bolts to your Nissan with included hardware. This is a class I hitch with a 1-1/4" receiver. It has a 2,000 lbs towing capacity and a 200 lbs maximum tongue weight. I really like the Draw-Tite item # 24796 hitch because the 1-1/4" receiver sticks out right below your rear bumper. I have linked an installation video below to help you get it set up. If...
    view full answer...
  • All Parts Needed to Tow With 2024 Nissan Altima
    I can indeed; here are all the correct parts for your 2024 Nissan Altima for towing: - Curt Trailer Hitch Receiver # C11352 - Vehicle Wiring Harness # C56339 - Curt Drawbar # C45521 - Pin and Clip # F-4 - 2" Hitch Ball # TS54FR or 1-7/8" Hitch Ball # C40001
    view full answer...
  • Does Power Wire of Curt T-Connector Need to Connect to Battery if Trailer Uses LED Lights
    Yes, you would indeed. The Curt # C56339 wiring harness won't function unless that power wire is installed to the positive battery terminal. Obtaining the power directly from the battery makes for a more reliable connection. It also serves to help isolate the vehicle's sophisticated and expensive to repair wiring from any short circuits that could occur in the trailer wiring. You can see the installation instructions by clicking the provided link.
    view full answer...
  • Trailer Hitch Receiver and 4-Way Flat Vehicle Wiring Harness For a 2024 Nissan Altima
    I recommend using the Draw-Tite Sportframe Trailer Hitch Receiver # 24796 on your 2024 Nissan Altima. You will want to use the Drawbar # 3594 and 2" Hitch Ball # 19258 if you plan to tow a small trailer with your Altima. The Curt T-Connector Vehicle Wiring Harness # C56339 will allow you to tie into the tail light wiring and give you a 4-way flat connector. This is the most commonly used connector on small trailers. It will also allow for Auxiliary Lights # C53201 with your hitch mounted...
    view full answer...

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


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Dustin K
Video Edited:
Dustin K
Employee Chelsea B
Written by:
Chelsea 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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