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 # C56281

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Custom Fit Vehicle Wiring

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C56281 - Custom Fit Curt Trailer Hitch Wiring
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  • Custom Fit
  • Trailer Hitch Wiring
  • Curt
  • 4 Flat
  • No Converter
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. Call 800-298-8924 to order Curt custom fit vehicle wiring part number C56281 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.


  • All Info
  • Reviews (33)
  • Q & A (9)
  • Videos (3)
  • Photos
  • Why etrailer?

Curt Custom Fit Vehicle Wiring - C56281

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.


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 - no cutting or splicing of wires
    • Harness with relays connects in rear cargo area
    • Tow harness with 4-way connector plugs into connection points behind rear bumper
  • Includes required relays to activate functions
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 7.5 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind your rear bumper. Once you've plugged in the tow harness, connect the included jumper harness with relays to activate functions. You will have to remove the cargo storage tray, trim panel, rear subwoofer, and rear scuff panel to access the connection point for the jumper harness.


Once installation is complete, the 4-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 plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.



56281 Curt T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector



C56281 Installation InstructionsInstallation Details C56281 Installation instructions

This Product Fits The Following Vehicles

2013 - 2019 Nissan Pathfinder

2014 - 2019 Infiniti QX60



California residents: click here


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


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Curt T-Connector Vehicle Wiring Harness Installation - 2014 Nissan Pathfinder

Speaker 1: Three owner, 2014 Nissan Pathfinder and we're gonna be taking a look in and showing how to install the current C-connector vehicle wiring harness with four pole flat trailer connector, part # C56281.This is what your wiring harness is gonna look like when it's installed. It's gonna give you all your normal functions for your trailer, brake lights, running lights, and your turn signals. It's very easy to install. Just plugs into existing wiring. Since your wiring harness is gonna live outside the vehicle, you can double your dust cap as a holder.Now I show you how to get it installed. First thing we need to do, is we need to get access to our hatch area.

Then we're gonna need to remove this panel here. We have three connection points. We're gonna use a 10 mm socket. Next we're gonna remove our scuff panel. First we need to take out this little center piece.

We're just gonna slowly pry up. I'll set it aside to get reinstalled.Next, we'll take a trim panel tool. We're gonna have little plastic fasteners here. We're gonna have four of them, across the back, that we're gonna have to remove. All you want to do is pry up.

I'm gonna remove this right here. It's gonna cover your deck; we're gonna set this aside. Then we're gonna take our box, and we'll just set it up, out-of-the-way like that.Next we're gonna remove this panel right here. Underneath this center cap on these tie down hooks, you're gonna have another 10 mm screw. You can also use a Phillips screwdriver.

Let's just set these aside. Then we'll take our trim panel tool again, and you're just gonna pry up on these.So what we need to get to is a plug right down here on the bottom. Now it's not gonna be necessary to take out this panel, but we're gonna do it for video purposes, so it's easier to see. So what we're gonna do is this point here, we're just gonna take a Phillips screwdriver and take out this screw here. Then we're just gonna gently pry back on this panel and if you look right down here, there's a plug. Now your kit's gonna come with two extra relays. If your vehicle is already equipped with a factory tow package, these are not gonna be required. They're already gonna have relays in place. If it's not, you're gonna have to read your owner's manual to find out the proper location to place these.Next we're gonna take our included wiring harness and our relays, your blue ones are gonna go on your white. Your brown will go with your brown. Now you want to make sure you do this, before you hook the wiring up to your vehicle. Now your kit's gonna come with foam tape for your relays. All is you would do is you would take off the paper, you wrap it around the relays like this. What that's gonna do, is when it's sitting in your vehicle, it's gonna keep these from getting damaged. Now for video purposes, we're not gonna put these on. So now we're gonna take our trim panel tool, we'll go ahead and remove our plugs from the side wall of the vehicle. Now we're gonna take our wide ends, connect them to the vehicle and the black one, we'll plug it in to the other black one.Next thing we're gonna do is we're going to go ahead and put everything back in place. Gonna go ahead and connect your two wires back to your vehicle panel here. So now we go ahead and zip tie our extra wire that we have left onto our existing wiring, that's put in by the factory. Once we have all our wiring connected, we'll go ahead and put all of our interior back together. You're just gonna do everything in reverse from when you took it out. So we'll start here on this side panel. Make sure your weather stripping is pulled on the outside.Once you have everything back in place inside the vehicle, we're gonna head underneath the vehicle over here on our passenger side. That's where you're going to hook the four pole connector into. Now right up here in the corner, you're gonna see two plugs. One of them is gonna match your four pole connector. Now this one here is gonna be the one that matches. I'm gonna go ahead and pull it down, and there's gonna be a cap on it. We're gonna remove that cap. Now if you have a little trouble getting it off, you just take a flathead screwdriver, push down on this tab, and pull out. And that's where we'll take our gray in for our four pole. Put it in place until you hear it click.So next, we're gonna find a good ground spot. I'm thinking right here, along the frame. I will take our self-tapping screw for each socket, and we're gonna take our white wire with our rain terminal, and we'll go ahead and put it into place. Now you want to make sure you get this snug enough that the wire doesn't move, but you don't want it so tight, that it breaks your ring terminal.Here on the back of the hitch, you're gonna have a bracket. What we're gonna do is we're gonna go up behind that. We're just gonna use this as a gauge to determine how much wire we want actually hanging out. Then the rest of it and we'll just take, along with a zip tie, wrap it around our hitch and tie up the rest of it.Next we're gonna test it out using part number I26. Left blinker, right blinker, brakes, running lights. And that'll do it for the current T-connector vehicle wiring harness with four pole flat trailer connector, part number C56281 on our 2014 Nissan Pathfinder.


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56281

Average Customer Rating:  4.8 out of 5 stars   (33 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 - no cutting, splicing or tapping required.

- C56281
by:
2014 Infiniti QX60

Works great for trailering my small sailboat and for my bike rack with my 2014 QX60. Ordered in the afternoon and it arrived the next day even on ground shipping. Took my local mechanic a couple hours to install the hitch and the Curt T-Connector Wiring. 381371



- C56281
by:
2017 Infiniti QX60

I used this on my 2017 infinity qx60. It was completely plug and play. Factory wireing harness was hanging from the passengers side rear of SUV as stated. Plugged it in and it worked perfectly . 413992



- C56281
by:

Absolutely no issues. Will do it again. Not really what else I can say. 665389



- C56281
by:
2015 Nissan Pathfinder

15 min installation very eazy 659385



- C56281
by:
2019 Nissan Pathfinder

Exactly as described and came in on time. Easy installation on my 2019 Pathfinder. Followed instructions on the video for a 2015 Pathfinder, the plugs were in the same place. Saved some money on installation and took me like 1 hr. 656236



- C56281
by:
Nissan Pathfinder

Child’s play putter big this one on after watching the install vid.... Only thing not quite clear was the relays for the fuse box... mine only had one and something was already in it so I assume it had the towing pkg already, but I’m not sure if there was another fuse box that I should look in... there seem to be several on the pathfinder. I will never ever buy a universal and strip wires to try to make it work.... this was easy, again after watching a vid. Super simple..... 653724



- C56281
by:

Easy install thanks to the provided installation video. Check the installation video for the same product by a different manufacturer on etrailer for the location of the fuse box in engine bay 646710



- C56281
by:

Better than expected. Didn't realize my car was pre-wired for tow hitch, but it was and this kit worked perfectly. All plug and play. I do wish they would have included a self tapping screw for the ground wire though. I couldn't find a bolt to remove from the frame that would fit the already installed round end and I had to drill a small hole in the frame to mount this. Had to obtain a stainless steel self tapping screw from hardware store. Still great product though and has been working flawlessly for over a year now. 604118



- C56281
by:

Thanks you God bless you 582981



- C56281
by:

Surprisingly easy to install after watching the video. They work as expected and I would definitely recommend purchasing the four pole mount to finish the look. 571193



- C56281
by:

Videos were excellent! Fast shipping! Got it in Wednesday, installed today. Thanks! 553204



- C56281
by:
2018 Nissan Pathfinder

Simple plug and play to existing factory harness. Looks like factory. 544114



- C56281
by:
2018 Nissan Pathfinder

Easiest wiring install I have ever done. No wires to tap into. A basic plug and play and I was ready to go. 530151



- C56281
by:
2018 Nissan Pathfinder

Very good product..high quality..I highly recommend etrailer.. 524249



- C56281
by:
2017 Nissan Pathfinder

Fast delivery and easy install 511929



- C56281
by:
2016 Nissan Pathfinder

Great quality product and great service! Thanks 508850



- C56281
by:
2014 Infiniti QX60

Easy to follow instructions, great prod uct!! 508799



- C56281
by:
2017 Nissan Pathfinder

product when on very easy, simple instruction to follow just time involve easy to install 491656



- C56281
by:
2015 Infiniti QX60

This is exactly the parts that I needed for my car. I had questions and in fact had one of the pieces/parts wrong but through etrailer Customer Support they located the correct part and fixed it for me before ordering. I have ordered multiple products from the company for years and have NEVER had an issue with anything. I feel lucky to have found them! Thanks etrailer!! 490571



- C56281
by:
Saturn Relay

Works good, but had difficulty installing. The provided instructions seemed to be lacking. Relay under the hood was already included with my vehicle. 480539



- C56281
by:
2014 Infiniti QX60

Product was well made and had lot of little extra's. The video on the etrailer site was extremely helpful as the installation was a little tricky. Shipping and delivery was excellent as always. 444354



- C56281
by:
2013 Nissan Pathfinder

The product was priced right, shipped on time and worked perfectly. The instructions included were great and made the installation a pretty easy job. The pictures on the directions were a big help. Highly recommend etrailer. 418247



- C56281
by:
2015 Nissan Pathfinder

Great product and easy to follow instru ctions. 411015



- C56281
by:
2013 Nissan Pathfinder

Bought this and draw-tite hitch for my 2013 Pathfinder! Works great, easy install, very nice product. etrailer costumer service was top notch!! I will for sure purchase their products in the future! Thanks, Mark 404697



- C56281
by:
2015 Infiniti QX60

The product video on the site was spot on and made it pretty easy. The hitch went on the vehicle with ease. Great product and directions. 395987



- C56281
by:

Installation was simple and the harness works perfectly. 395501



- C56281
by:

The wire harness was complete. I got lucky and found a factory installed wire so I only needed one part of what i bought but it too worked as promised. Thank you for the great service and the excellent follow up. Sincerely Brian 392666



- C56281
by:
2016 Infiniti QX60

2016 QX60 Infinity. Product gets five stars for plug and play function. The instructions were a little less than functional. After digging into the trunk to find the vehicle plugs as illustrated in the directions. No plug could be found. After unplugging taillights, rear panels, etc. Turns out my model year plugs were mounted tight against the aft wall, close to my knee (When standing at the trunk area.); high up and inside - but completely out of view. Still in the drivers side, rear corner. If I could have gotten my camera inside the bracing at an up angle, I would share a picture. All is well now and it works great. 391713



- C56281
by:
2017 Nissan Pathfinder

Easy installation, looks great. 386224



- C56281
by:
2017 Nissan Pathfinder

Even though i did not install this. The dealership did it for me a part of the car deal, the tech said it was very easy. Everything was all done within 45 min. 367222



- C56281
by:
2015 Nissan Pathfinder

The package arrived a day early which was great. Everything is in great shape. I am pleased with the speed of service. Have not put the hitch on yet. 323066



- C56281
by:
2014 Nissan Pathfinder

Everything fit exactly, the videos and instructions were spot on! Did it alone in about two hours. 313056



- C56281
by:

my husband is very pleased and the installing of the wiring and the trailer hitch went fine. thank you for excellent and quick service. 288063


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Ask the Experts about this Curt Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?


  • Trailer Hitch Recommendation for 2018 Nissan Pathfinder
  • To set up your 2018 Nissan Pathfinder for towing, you are off to an excellent start. The Draw-Tite Max-Frame # 76031 is a confirmed fit. Then the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56281 will give you the trailer wiring you need. You will also need a ball mount and a hitch pin. I recommend the Tow Ready J-Pin Stabilization Pin and Barrel Lockset for 2" Trailer Hitches # 63201 because it is designed for use with this hitch and will give you...
    view full answer...

  • Recommended Trailer Wiring Harness to Fit 2016 Infiniti QX60
  • The wiring harness that will fit your 2016 Infiniti QX60 depends on if you have tow package or not. If you do not have the tow package you'll need one of the universal hardwire options. I recommend the # 119190KIT. It works on a variety of vehicles, with all sorts of wiring types, and trailers with different types of lights. This will provide you with a 4-way trailer connector. If you need a 7-way you can then use our # ETBC7 kit to convert it. If your Infiniti has the factory...
    view full answer...

  • Installing Curt 7-Way T-Connector Wiring Harness on 2016 Nissan Pathfinder
  • The Curt 7-Way T-Connector Vehicle Wiring Harness # C56357 referenced in your question is confirmed to fit your 2016 Nissan Pathfinder and will plug into the same ports behind the rear bumper that you used for the 4-Way Harness # C56281. You will need to remove the 4-Way harness for this to install. The relays though that you already installed for the 4-Way are the same for the 7-Way harness so these won't need to be changed. I have attached an installation video that you can use for...
    view full answer...

  • Trailer Wiring Harness Recommendation for 2017 Nissan Pathfinder
  • For trailer wiring for your 2017 Nissan Pathfinder I would recommend the custom fit Curt kit part # C56281 as it installs much easier than the Hopkins by utilizing factory trailer wiring already present on the vehicle whereas the Hopkins kit requires installing inline with the taillights of the vehicle. I attached an install video for this for you to check out as well.
    view full answer...

  • Is Complete Wiring Harness Necessary for 2017 Infinity QX60?
  • I was unable to locate the comments you were referring to specifying that newer models of the Infiniti QX60 such as your 2017 would not need all of the parts, and the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56281 cannot be sold in individual parts so you would need the entire kit.
    view full answer...

  • Troubleshooting Wiring Harness Installation for 2013 Infiniti JX35
  • We are happy to help with getting you the correct parts for your vehicle. For your 2013 Infinity JX35, the Curt wiring harness # C56281 you referenced is the correct fit for a factory replacement. The relays you need to install are not in the 6x6 fuse box according to my tech contact but rather in the small box by the firewall that is about 1-1/2 by 6 inches and has a black cover you will remove. It unfortunately is not quite as easy to get to and you may want to test the harness to...
    view full answer...

  • Will a Trailer Hitch Fit a 2018 Infiniti QX60 with Backup Sensors
  • I reached out to Curt, who makes the Curt Trailer Hitch Receiver part # C13126 for your 2018 Infiniti QX60 (excluding Hybrid) and they informed me that the hands free liftgate feature will still work but you will need to position your foot on either side of the receiver tube. They did not mentioned any kicking motion. I don't believe the surround sensors, backup sensors, or pre collision avoidance features will be hampered by the hitch but the pre collision avoidance has not been tested....
    view full answer...

  • Trailer Hitch and Wiring for a 2016 Infiniti QX60
  • For a trailer hitch that fits your 2016 Infiniti QX60 AND does not require any trimming you can use Draw-Tite trailer hitch # 76031. The other hitch option requires trimming. I have linked a video showing an example installation for you. For trailer wiring you can use # C56357 to add a 7-Way connector or # C56281 to add a 4-Way flat connector. I have linked videos showing example installations for you. I recommend etrailer ball mount kit # 989900. It comes with 2 ball mounts; one...
    view full answer...

  • Recommended Wiring Harness for 2013 Infiniti FX35
  • The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56281 is unfortunately not a fit for your 2013 Infinity FX35. You must have a carry over model because the FX35 was changed when they added horsepower to create the FX37. The correct wiring harness I recommend for you will be the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56074 which is compatible with the 2012 FX35 and the 2013 FX37 models as well as some others. I've...
    view full answer...


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Info for this part was:

Edited by:
Lindsey S
Installed by:
Jeff D
Video by:
Joshua S
Video Edited:
Jacob T
Written by:
Chelsea B
Updated by:
Sarah W
Video by:
Zach D
Photos by:
Stacy F
Test Fit:
Brent H
Test Fit:
Shane H
Updated by:
Kristina F
Test Fit:
Ryan G
Updated by:
Isabelle B

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