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Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector

Item # C56357
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Custom Fit Vehicle Wiring

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Curt Custom Fit Vehicle Wiring - C56357
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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 OEM tow package port - no cutting, splicing or tapping required. Call 800-298-1624 to order Curt custom fit vehicle wiring part number C56357 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 for Factory Tow Package - 7-Way Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (34)
  • Q & A (18)
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  • Why etrailer?

Curt Custom Fit Vehicle Wiring - C56357

  • Custom Fit
  • Trailer Hitch Wiring
  • 7 Blade
  • Curt

Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - 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
    • Designed for use with a factory tow package
    • Compatible with 4-pole, 5-pole, and 6-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection points behind rear bumper
    • Plug in connector
  • Includes required relays to activate functions
  • Comes with a spring-loaded dust cap for 7-way connector


Specs:

  • Maximum amperage: 10 amps per circuit
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's factory tow package wiring harness, which is located behind the rear bumper. Once you've plugged in the tow harness, insert 2 of the blue relays and the brown relay into the included jumper harness. This harness then plugs into the port that is located behind the driver's-side trim panel in your rear cargo area. Plug the remaining 2 blue relays directly into the relay box under your hood.


Once installation is complete, the 7-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 7-pole connector itself - to help prevent corrosion.



56357 CURT T-Connector - OE 7-Way Blade

Installation Details C56357 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector - C56357

Average Customer Rating:  4.8 out of 5 stars   (34 Customer Reviews)

Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - no cutting, splicing or tapping required.

- C56357
by:
2017 Nissan Pathfinder

I couldn't have done this without the install video on etrailer.com. Taking the trim apart on my vehicle was a lot more comfortable when I walked thought the video step by step. The install was relatively painless. This harness went along with etrailer product number 76301 (trailer hitch receiver). In hind sight, I wish I installed the tail light connectors BEFORE I put in the receiver. The connectors were harder to reach with the receiver in the way. I DID NOT use the 7 pin connector that came with the package. I wanted a 7-pole and 4-pole connector for flexibility. I used etrailer.com's part number HM40975 which was compatible with this item.


Comments
After a year of using this product, I have had no issues. Everything has been working as expected.
Matt W - 07/07/2019


Comments
After a year of using this product, I have had no issues. Everything has been working as expected.
Matt W - 07/07/2019



- C56357
by:

It came on time and was the correct harnesses. Quality is good.



- C56357
by:
2014 Nissan Pathfinder

Great product fast shipping easy install. 5 minutes. By the way no need in dropping tire to put this or the hitch on like was described.



- C56357
by:

Product was great. Very easy to install.



- C56357
by:

It is just as simple as it can get. Plug and play. No cutting or anything like that.



- C56357
by:

worked well but somehow I wiggled the wrong wire and now the rear tailgate door doesn't lock . I will open things up again to try to find the problem. I wish I had a color coded wire diagram.



- C56357
by:

Worked perfectly for my 2013 pathfinder!



- C56357
by:
Infiniti QX60

Product was well designed and constructed. Installation instructions were good but finding the mating plugs in the Infinity QX 60 was a chore to see them and to access them. Not the fault of E-Trailers, just the way it was. E-Trailers support has always been excellent and this is the second towing package I have purchase from them.



- C56357
by:

Works great!!



- C56357
by:

I honestly didn’t want to have to install wiring, but this package is so easy. I highly recommend it.



- C56357
by:
2015 Nissan Pathfinder

I had to wire my 2014 nissian Pathfinder trailer hook ups. I got the products from etrailer. Followed the videos. Took me 15 minutes give or take a few. I will always recommend etrailer from now on. I also had a problem with my shipping address and was contacted by email. And etrailer got it figured out quikly.



- C56357
by:
2016 Nissan Pathfinder

Quick easy and painless. Everything went together nicely, big thanks to the install video. Always nice to watch it done one time especially when your removing interior panels. Wish I would have done the underneath wiring prior to installing my hitch, would have saved a minute.



- C56357
by:

Also easy to install. Worked correctly on 1st try. Would like to see etrailer include a little diagram showing how to check the wiring using a little pocket meter (which is also quick to do if you don't have a trailer to connect to check it).



- C56357
by:

Everything is super easy to install. Nice quality. The directions were easy to follow, if you watch a car specific video its even easier. The one thing that I missed is I didn't know enough to buy the bracket to mount the plug on the hitch.



- C56357
by:

Excellent purchasing experience and an excellent product. I installed the hitch by myself in 30 minutes and the electrical took a bit longer but the instructions were very clear and detailed.



- C56357
by:

Recommended! Easy hookup and installati on



- C56357
by:

Nice product that connects easily to factory plugs. No complaints



- C56357
by:

Great product just plug and play. With the videos online it’s a easy install. Thanks etrailer



- C56357
by:

Easy to install. Followed the video and didn't have any issues!



- C56357
by:
2015 Nissan Pathfinder

This was easy to install on my 2015 Pathfinder and worked great.



- C56357
by:

Click and go, everything was so easy to installed,



- C56357
by:

Perfect fit. Excellent install video.



- C56357
by:
2013 Nissan Pathfinder

Thanks for the detailed instructions and the product. It saved me over $40 and came in just in time to save my camping trip. Much appreciated and your company came highly recommended from a friend.



- C56357
by:



- C56357
by:
2014 Infiniti QX60


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Show More Reviews

Ask the Experts about this Curt Custom Fit Vehicle Wiring

  • How Can I Tell if My 2013 Nissan Pathfinder Came With Factory Tow Package
    All 2013 Nissan Pathfinders came pre-wired for a tow package, so we know your Pathfinder at least has something. If your Pathfinder came with the tow package option from the dealer, then you would have a trailer hitch and trailer wiring at the back of the Pathfinder. Since you are asking for a wiring kit, I'm guessing you need the wiring still. For this I recommend the Curt 7-Way Wiring Harness, # C56357, if you want a 7-pin trailer connector or the Curt 4-Way Wiring Harness, # C56281,...
    view full answer...
  • 7-Way Trailer Connector and Brake Controller Install on 2020 Nissan Pathfinder
    All 2020 Nissan Pathfinders come from the factory prewired for a brake controller and a 7-way trailer connector, though it might lack the 7-way and the relays needed to activate the tow package. You will need a brake controller. If your vehicle doesn't already have a 7-way, you can easily install one using part # 118273. You will also need a # PK12711U bracket and a # 18136 no-drill mount if your hitch doesn't already have a trailer connector mounting tab on it. For a brake controller,...
    view full answer...
    Image 1 for
  • Troubleshooting No Trailer Running Lights with Curt T-Connector # C56281 on 2019 Nissan Pathfinder
    If the trailer running lights aren't working with the Curt T-Connector Vehicle Wiring Harness # C56281 installed on your 2019 Nissan Pathfinder, most likely the two additional blue relays that are included in the kit just need to be installed. The fuse box where these will be inserted on your Pathfinder is actually located under the hood, directly behind the driver's side head light. I have attached an image below that shows the box with the two relays already inserted (there will also...
    view full answer...
    Image 1 for
  • Troubleshooting No Trailer Running Lights for 2017 Nissan Pathfinder
    I know you said you checked fuses but did you check relays? The "no running lights" problem is pretty common on Nissan vehicles like your Pathfinder and the issue is typically a missing or bad relay for this circuit. It's so common we almost get this question daily. For the needed relay you can use part # 38666-1. I attached a picture where the harness is that has the running light circuit relay you'd need to find.
    view full answer...
    Image 1 for
  • Wiring Adapter For Tow-Pro Liberty on 2017 Nissan Pathfinder
    We have the exact adapter you need for your 2017 Nissan Pathfinder for the brake controller, with the parts being the following: - Redarc Tow-Pro Liberty Brake Controller # RED24FR - Plug-and-Play Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers # RED39FR If your '17 Pathfinder has the factory 7-way already, you won't need any other parts; should you also need to add a 7-way to your Pathfinder, then you can do so easily with the Curt T-Connector Vehicle Wiring Harness...
    view full answer...
  • Trailer Hitch Receiver and 7-Way Wiring for 2017 Nissan Pathfinder
    The wiring kit, part # C56357, includes everything you need to get it installed on your 2017 Nissan Pathfinder. This kit is plug and play and is easy to get installed. I have attached an install video to help with the installation. The hitch for your Pathfinder, part # 76031 includes all of the hardware to get it installed on your Pathfinder. There is a welded on bracket to add wiring, but you need another bracket, Part # A10-9394VP, to get the plug for a 7-way mounted more solid.
    view full answer...
  • Troubleshooting Trailer Light Functions Connected to Curt Trailer Harness on 2015 Nissan Pathfinder
    The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector # C56357 sounds like it was installed correctly and wouldn't have any draw on your battery except when a trailer is connected. I recommend using a circuit tester like # PTW2992 to test each function when the trailer is not connected to confirm you did the installation correctly and all relays and fuses are working correctly. If not, check the connections again and then check fuses. Relays...
    view full answer...
  • 7-Way and Brake Controller Recommendation for 2014 Infiniti QX60
    It's safe to say that if you do not have trailer wiring at the rear of your 2014 Infinifi QX60 but we can easily install a 7-way on your vehicle with the part # C56357 and it will be ready to use the brake controller install harness part # 3050-P to install a Tekonsha brake controller like our best selling P3 part # 90195. For a brake controller I would recommend the Prodigy P3 Brake Controller part # 90195. This is our best selling brake controller because of how well it works and how...
    view full answer...
  • Will Curt Trailer Wiring # C56357 Fit 2017 Infiniti QX60
    If you see all of the needed ports to install the Curt trailer wiring harness part # C56357 in your 2017 Infiniti QX60 then most likely you have the tow package and this would be the correct kit. This kit comes with the needed relays and harnesses to complete the wiring and activate it as well.
    view full answer...
  • Where Does Curt Trailer Wiring Harness # C56357 Install on a 2013 Nissan Pathfinder
    I have included a link to a video showing how trailer wiring harness # C56357 installs on a Nissan Pathfinder. Basically there are factory connectors in the cargo area where you will plug in the short harness and install three of the 4 included relays to that harness. The longer harness and the 7-Way plug in under the vehicle. Neither harness plugs in at the front of the vehicle. The one leftover blue relay may be needed in a certain location in the in-cab fuse box (or under the hood in...
    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...
  • Troubleshooting Sparks on Safety Chains When Connecting to Hitch
    What you've been told is likely the culprit, and I don't believe that it's coming from an issue on the Curt # C56357 you've installed. I would check the ground wire on the trailer wiring harness to make sure that it is connected to a paint, rust and debris free spot on the trailer frame. This is the most likely cause of the sparks that you're seeing. If you can check this and see if it continues, that's a good place to start. If you're still experiencing the same issue after cleaning off...
    view full answer...
  • Color Wiring for Replacing 7-Way Connector on Curt T-Connector C56357
    The wiring colors from the Curt T-Connector # C56357 will be the following: Black - 12V Power White - Ground Blue - Brake Controller Output Red - Reverse Yellow - Left Turn/Stop Brown - Running/Tail Lights Green - Right Turn/Stop My contact at Curt confirmed this for me. If you don't already have a replacement 7-Way then you can use the Hopkins Endurance Quick-Install 7-Way Trailer Connector with Universal Pigtail Harness # HM47210 which has the following wiring configuration: Red...
    view full answer...
  • Should My RV Be Running When Connecting the Tow Vehicle?
    It doesn't really make a difference if your RV is running or turned off while actually connecting. Turning your RV off sounds like an unnecessary extra step. If you're having issues with the wiring or your connectors just let me know what what's going on and I will be happy to help troubleshoot. Frayed or incorrect wiring or severed connections could be causing a short that you would encounter whether you're hooking up or towing.
    view full answer...
  • Recommended Trailer Hitch for a 2020 Infiniti QX60
    Yes, the Curt Trailer Hitch Receiver part # C13126 is a confirmed fit for a 2020 Infiniti QX60 and it offers a bolt-on installation. Furthermore, the Curt hitch has a hidden design which means you only see the receiver tube so you don't have to look at a bulky cross tube at the rear of your vehicle. In regards to installation, this should only take around an hour or so and you don't really need any special tools either so you can do this at home by yourself. If you will be towing then...
    view full answer...
    Image 1 for
  • 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...
  • Bracket for Mounting 7-Way Install on 2019 Nissan Pathfinder with Curt Hitch
    Since the Curt hitch part # C13309 that fits your 2019 Nissan Pathfinder doesn't have a trailer wiring bracket (none of the hitches for your vehicle do) the best options is to use a bracket # PK12711U attached to the lower rear fascia so that you can easily mount the 7-way kit that also fits your vehicle part # C56357. I attached a picture that shows what the wiring connectors look like at the rear of your vehicle as well.
    view full answer...
    Image 1 for
  • How to Mount a 7-Way Connector on a 2017 Nissan Pathfinder with the Curt Hitch # C13309
    If you were to install the Curt Trailer Hitch Receiver # C13309 on your 2017 Nissan Pathfinder then you would need to mount the Curt T-Connector # C56357 directly to your rear bumper fascia using the mounting bracket # PK12711U. To avoid this you can use the Curt Easy Mount Bracket # C58000 instead. Since the Draw-Tite Trailer Hitch # 76031 does sit below the rear bumper fascia you would be able to use the no-drill mounting bracket # C57202 along with the part # PK12711U. The Curt...
    view full answer...
    Image 1 for

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
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Jameson C
Employee John H
Expert Research:
John H
Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jacob T
Video Edited:
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Employee Wilson B
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Employee Kristina F
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Kristina F
Employee Isabelle B
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Employee Amanda M
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Employee Zach D
Video by:
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Employee Shane H
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