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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 # C56011
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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 - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56011 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 (413)
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CURT Custom Fit Vehicle Wiring - C56011

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • 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 - no cutting, splicing or tapping required. Converter 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 - no cutting or splicing of wires
    • Locate connection points in rear cargo area
    • Plug in T-connector
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
  • 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 behind the driver's-side and passenger's-side interior trim panels in your rear cargo area.


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.


Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. 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.



56011 CURT T-Connector - Surface Mount Technology - 4 Wire

Installation Details C56011 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 - C56011

Average Customer Rating:  4.9 out of 5 stars   (413 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. Converter is made using SMT to ensure superior performance.

- C56011
by:
2015 Honda Accord

I installed this on my 2015 Honda Accord for the purpose of pulling my small aluminum fishing boat and trailer. Works great!



- C56011
by:
2015 Mazda CX-5

I am quite happy with this wiring kit! It truly is plug and play!! After watching the video, the install was quick and easy. I only deviated from the install video, where it concerns the ground wire. It says to use a drill and make a 3/32 hole and use the self tapping screw, if you can not find an existing place to mount the ground wire. On the CX-5 there is a perfectly placed nut that can be used, and you dont even need any extra tools above what the kit calls for. When you pull off the plugs for the drivers side tail lights, you will also see 3 10mm nuts that hold the tail light in place. Just remove the one below the brake light, and slip the ground wire over it and replace the nut.


Comments
I havent had to pull any more trailers, but I have no doubt it will work just fine, the next time I need to unroll it from the spare tire well!
Tim W - 07/27/2018



- C56011
by:

Arrived on time. Was easy to install and has been working fine for a year.



- C56011
by:

This was an easy transaction. All the information was there and easy to understand. The videos that they had for the hitch and wiring harness I purchased were very helpful. Everything arrived right on time and just as it was supposed to be. Everything was spot on with my parts and experience!!



- C56011
by:

The service and product is great! This is the second hitch I purchased from etrailer and the experience has always been great! The prices are equal or better than [online store] and the service is as good or even better. With etrailer, I know I am getting the correct product every time.



- C56011
by:
Mazda

easy to install. plug and play. highly recommend. this was for a mazda cx5



- C56011
by:
2013 Mazda 3

2013 Mazda 5. Fit perfect. Easy install. Instructions clear, but I was able to do a clean install without taking off the side panels, just remove the rear bolts. Routed out through left rear clean-out plug. Some tape will hold the wire that does from left to right securely. This kit is the way to go.



- C56011
by:
2021 Mazda CX-5

Great product at an affordable price. Excellent installation video. Second hitch for me..........free shipping :)



- C56011
by:

Very easy installation and product quality is excellent, installation took me about a 1/2 hour to do it and I was taking my time


Comments
Everything is working perfectly, Canada winters make sure to keep things clean and protected, I have recommended this product multiple times with much gratitude from the people I told .
Stephan - 04/16/2022


- C56011
by:
2015 Mazda CX-5

Excellent quality and service as always. I bought from etrailer in the past and will continue to do so.



- C56011
by:
2014 Honda Accord

Purchased for 14 Accord Coupe. Easy to connect, tucks right into spare tire compartment when not in use, more than long enough to connect to trailer.



- C56011
by:
Honda Civic

I have purchased four light duty hitches from etrailer in the past few years. The hitches and wiring harnesses have performed admirably and the customer service has always been excellent. This hitch was installed on a Honda Civic Hybrid. Obviously a light duty application, it allowed me to do such things as haul yard waste to the local waste site. Beat having to buy a pickup!



- C56011
by:

it's solid and well built - install was straightforward.



- C56011
by:

Does not work well with blind spot monitoring system on my Mazda CX-5. When the trailer lights are connected the blind spot indicator is on almost all the time.


Comments
Thank you for your review. Non-powered wiring harnesses, like # C56011, draw power from the vehicles light circuits, which is why they are not compatible with LED taillights. You will need Tow Ready T-One Vehicle Wiring Harness # 118563.
-- Etrailer Expert Sierra K - 07/12/2021


- C56011
by:
Honda

Simple straightforward easy to install. My car 2013 Honda Fit



- C56011
by:
2015 Mazda CX-5

My wife and I installed a 2" Curt trailer hitch (and wiring) on our 2015 Mazda CX-5. Total installation time was about 2 hours. We didn't have any problems with the instillation of the hitch or wiring. Etrailer has a video link available, which should be viewed before you begin your installation. However, there wasn't any audio with this. The hitch is solid and appears to be well built. Occasionally, we pull a small aluminum trailer loaded with kayaks, or other light items. We have ordered from Etrailer before and feel they are a good company to do business with.


Comments
Weve had our Curt hitch for over a year now and it still looks like new. Were very satisfied and recommend Curt and Etrailer.
Michael G - 09/16/2015



- C56011
by:

Everything was easy, got my wires quick and had it installed in 20 minutes . Video guides were 100% accurate



- C56011
by:
2015 Mazda CX-5

The hitch was great and went on without a problem. Wiring also worked great. Done! I bought from you because of your videos and they made installation so much easier. I am a do it yourselfer but at 73 was thankful for all you information and help via the videos. Would recommend your site to anyone in need of a hitch.



- C56011
by:
Honda Accord

Second wiring harness I've ordered from etrailer.com. First was for a Honda Civic I was leasing. I now have an Accord Sport sedan and expect the installation to be as easy as the previous. Just pull some trunk panels and connect plugs to existing light fixtures. I already popped the one side to verify I have standard lights vs the LEDs. Looks even easier than the Civic was. Totally satisfied with the price and shipping/tracking of the order.


Comments
I use the hitch mostly for my bicycle rack and it works as designed with no problems.I have tested the wiring harness and it operates the lights on my boat trailer also with no problems.Im happy with the products.
JD - 06/18/2016



- C56011
by:

My vehicle came with a hitch,but no wiring!?! This kit works great and was SIMPLE to insall! Thamks etrailer!



- C56011
by:
2011 Mazda 3

Came in original Hopkins package within a larger box with everything else in my order. Was packaged great and fit my car as expected. Length of wires is adequate and the inclusion of zip ties for securing the wiring is great.


Comments
Superb. Was an easy install. Holding up great.
Daniel - 05/19/2021


- C56011
by:

This install was so easy, thanks etrail er!!!



- C56011
by:

I'm impressed! You promised my order would be here on Friday. It arrived a day early! Watching the video about installing the hitch said installation time was 40 minutes. I had it installed in exactly 40 minutes. That included the time it took me to search for the tool that I just had in my hand 30 seconds ago. Came inside and watched the video on installing the wiring harness then installed it without a hitch (pun intended)... The whole job took exactly 2 hours. I rarely have a job go that smoothly! Again, I'm impressed. Thank you so much!



- C56011
by:

Easy to install and works exactly as ex pected.



- C56011
by:

Installed in less than 20 minutes, awesome instructional video!


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Show More Reviews

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



  • Trailer Wiring and Installation Video for a 2013 Honda Accord
    We do have a video showing installation of Curt trailer wiring harness # C56011 that I have linked for you. The connectors on the harness will plug in line with the vehicle tail light wiring. I have included a link to the installation instructions for you.
    view full answer...
  • Installation Process for Curt 4-Pole Trailer Wiring Harness # C56011 in 2013 Mazda CX5
    The Curt trailer wiring harness you referenced, part # C56011, is a correct fit for your Mazda CX5. This plug-and-play harness connects at the tail light assemblies by plugging in between the vehicle wiring and the tail light assemblies. I have linked an install video showing a 2014 CX-5 that you can review. You will need to get access to the tail light wiring in order to connect the harness. This will require removal of interior access panels at the rear of the vehicle. The vehicle wiring...
    view full answer...
  • Trailer Wiring Harness for a 2013 Honda Accord Sedan without LED Tail Lights
    Curt does list wiring harness # C56011 as a fit for the 2013 Honda Accord sedan. The packaging might not be updated yet is all but it does fit. This harness actually fits numerous vehicles which is why the pictures in the instructions, linked for reference, may not look exactly like your vehicle. The instructions also list the coupe model but again the application guide goes up to 2012 for the coupe and then includes the sedan, without LED tail lights, for 2013.
    view full answer...
  • Wiring Connector For European Thule EasyFold Bike Rack On 2014 Mazda CX-5
    I spoke with my contact at Thule about your Thule EasyFold Bike Rack, part # TH9032. They told me that the models sold in the USA do not come with the 7-pin and 13-pin wiring connector. We do not offer an adapter for European wiring, and my recommendation would be to find a local mechanic or dealer that would be able to provide you with the connector needed for your 2014 Mazda CX-5.
    view full answer...
  • Troubleshooting Wiring When All Lights Work Except Brake Lights
    You will need to check the stop light and/or CHMSL fuses in the towing vehicle. You may find that is causing the issue. You can then check to see if there are separate fuses or relays for the tow package wiring. You can check the owner's manual to find the locations of any fuses/relays. If the fuses and relays all check out it may be a problem with the ground. You will want to make certain both the vehicle and trailer side ground wires are attached to clean bare metal surfaces. Also make...
    view full answer...
  • Will Curt Wiring Harness # C56011 Fit 2015 Mazda CX-5
    Yes, my contact at Curt manufacturing confirmed that their T-Connector Vehicle Wiring Harness # C56011 will indeed fit and operate properly in your 2015 Mazda CX-5. New model year vehicles do take some time to be tested and confirmed for wiring and hitch fits but your new CX-5 is definitely compatible with this plug-and-play harness. The linked video illustrates installation in a 2013 model year CX-5 and the written instructions are also included. In case you run into any issues I have...
    view full answer...
  • Lights Flickering on a 2015 Honda Accord with Curt Wiring Harness Part # C56011
    The Curt T-Connector Vehicle Wiring Harness part # C56011 is indeed the correct wiring harness for your 2015 Honda Accord without LED tail lights. The issue you are describing sounds like a ground issue. Please make sure that the ground you are using is a clean bare metal surface without any paint present. This is more than likely the cause of your problem. Before attaching the ground screw, sand the surface down with some 80 grit sandpaper to remove any connection inhibiting material....
    view full answer...
  • Trailer Works with One vehicle But Not Another
    This sounds like a ground issue. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion free bare...
    view full answer...
  • Left Side Trailer Lights Not Working when 2015 Mazda CX-5 Running Lights are Turned On
    This does sound like a ground issue. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion free bare...
    view full answer...
  • Curt Trailer Wiring Harness for a 2008 Mazda 3 that Does Not have LED Tail Lights
    Yes, Curt trailer wiring harness # C56011 will work with your 2008 Mazda 3 without LED tail lights. I have linked the instructions and a video review of this harness for you.
    view full answer...
  • Troubleshooting No Turn Signals of Curt Trailer Wiring on 2015 Mazda CX-5 With Headlights On
    The main problem you are having with the Curt harness # C56011 you have installed in your 2015 Mazda CX-5 is an insufficient ground for the trailer wiring. Try improving the connection of the main ground wire of the trailer wiring harness. Make sure it is attached to a clean metal surface. Or you can run all of the trailer wires back to the main ground. This is actually the ideal solution. But you can also check the current grounds for the lights to make sure they are making a solid connection...
    view full answer...
  • What is the Difference Between Trailer Wiring Harnesses for the 2013 Mazda CX-5
    For the 2013 Mazda CX-5 the Tow Ready wiring harness # 118563 is a powered converter that requires a direct connection to the vehicle battery to power the trailer lights. This protects the vehicle wiring and electrical components from damage. Because this unit uses a powered converter it will have a higher amperage rating (if the trailer has a lot of lights) than the Curt harness. The Curt harness # C56011 does not require a connection to the battery so it gets all of the power from the...
    view full answer...
  • Trailer Wiring Harness for a 2014 Mazda CX-5
    Curt trailer wiring harness # C56011 fits the 2014 Mazda CX-5 if it does NOT have LED tail lights. If your CX-5 has LED tail lights then you can use harness # 118563. I have linked videos showing example installations of each harness for you.
    view full answer...
  • How to Make Trailer Wiring Harness Easier to Unplug From Trailer
    I'd recommend using some dielectric grease, like part # 11755. Not only will the grease prohibit moisture from entering the connections and protect them from corrosion, it will make the connection easier to plug together or to separate.
    view full answer...
  • Trailer Wiring Harness Recommendation for 2013 Mazda CX-5
    Either trailer wiring harness that you referenced would work great for you. Both the Tow Ready harness part # 118563 and the Curt # C56011 would work on your 2013 Mazda CX-5 that has incandescent lights and your trailer that has LEDs. We tend to have better luck with the Tow Ready harnesses so I would go with the # 118563. I attached an install video for you to check out as well.
    view full answer...
  • Wiring Harness Fit and Recommendation for 2014 Mazda CX-5 Touring?
    For your 2014 Mazda CX-5 Touring, I recommend the Tow Ready T-One Vehicle Wiring Harness # 118563. This wiring harness is confirmed to work for CX-5s with or without LED taillights and will work well with your vehicle's wiring system. I spoke with my contact at Tow Ready and he confirmed that your CX-5 does not have pulse width modulation. Since the # 118563 wiring harness has a powered converter, it will use the vehicle battery to power the trailer's lights. Non-powered wiring harnesses,...
    view full answer...
  • Recommended Trailer Wiring Harness for 2011 Mazda 3 Grand Touring with LED Tail Lights
    I do have a solution for you, however if your 2011 Mazda 3 is equipped with the LED tail lights, the Curt T-Connector Vehicle Wiring Harness # C56011 that you referenced will not be compatible. For your Grand Touring model that has the LED lights, I instead recommend the Hopkins Wiring Kit # 119179KIT. This is a universal, hardwire kit that features integrated circuit and overload protection to safeguard itself and your vehicle from electrical shorts. There is not a custom harness available...
    view full answer...
  • Trailer Wiring Harness for a 2016 Mazda CX-5
    We do have trailer wiring harnesses that will fit your 2016 Mazda CX-5 you can use Tow Ready harness # 118563. Or you could use Curt harness # C56011. I have included links to videos showing example installations of each harness.
    view full answer...
  • Comparing Tow Ready # 118563 and Curt # C56011 Wiring Harnesses for 2016 Mazda CX-5
    The Tow Ready T-One Vehicle Wiring Harness # 118563 is a correct fit for your 2016 Mazda CX-5. The other harness offered, Curt # C56011, does not fit your 2016 CX-5 due to a change in connectors from the 2015 model year. Note that there are two major advantages to using the Tow Ready harness. First, this harness will isolate and protect your new vehicle's wiring from any potential shorts or overloads from the trailer because it draws power for the trailer directly from the battery, not...
    view full answer...
  • Trailer Wiring Harness Recommendation for 2015 Honda Civic Sedan
    The trailer wiring harness I recommend for your 2015 Honda Civic sedan is the T-One kit part # 118420 which is a confirmed custom fit. Of all of the wiring kit brands we carry this one is the most reliable so I recommend it the highest.
    view full answer...
  • Recommended Trailer Wiring Harness For 2016 Honda Civic Sedan
    We do have a wiring kit that will work with your 2016 Civic but they require hardwiring the harness on your vehicle. Curt T-Connector Vehicle Wiring Harness, part # C56011 is not a confirmed fit for your 2016 Civic. The harness I recommend for your Civic is the Tekonsha # 118686.
    view full answer...
  • Trailer Wiring Harness Recommendation for 2016 Mazda CX-5
    The hot lead is actually a way to protect the taillight circuits of the vehicle. What it does is allows the trailer taillights to be activated by drawing the power for them directly from the battery and not from the vehicle's taillights. It's actually the safest and best way to do it. For your 2016 Mazda CX-5 you would want the trailer wiring harness part # 118563 which is a confirmed fit. I attached an install video for this harness for you to check out as well.
    view full answer...
  • Easier to Install Trailer Wiring Harness for 2015 Mazda CX-5
    You're correct, the Curt wiring harness for your 2015 Mazda CX-5, part # C56011, does not have a power wire that connects to the vehicle battery like the Tekonsha, part # 118563. In most cases I'd recommend the Tekonsha even though the install is more involved. Most Tekonsha wiring harnesses have a converter box that mounts to the vehicle with a screw that keeps it much more secure than the double sided tape that Curt commonly uses. In this case, both harnesses use tape so I'd go ahead...
    view full answer...
  • Curt Trailer Wiring Harness that Fits 2011 Honda Accord Crosstour
    We have a custom fit Curt trailer wiring harness that fits your 2011 Honda Accord Crosstour with the part # 56008 but the # C56011 is not the correct fit.
    view full answer...


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