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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 4 Flat
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
THIS ITEM IS NOT A FIT FOR
2023 Genesis GV60
etrailer Installation
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CURT

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

Part Number: C56111
$73.73
Retail:$115.95
You Save: 36%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2023 Genesis GV60

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
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 C56111 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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CURT Custom Fit Vehicle Wiring - C56111

Highlights

  • Custom Fit for Your Vehicle: Works with your vehicle's wiring
  • Tow-Ready Lighting: 4-pole flat connector powers trailer stop, turn, and tail lights.
  • Protects Vehicle Circuits: Powered converter draws trailer light power from battery, not car wiring.
  • Plug-and-Play Install: T-connector taps behind tail lights—no splicing into factory wires.
  • Weather-Sealed Converter: Enclosed box mounts safely outside without moisture damage.
  • Complete Power Setup: Includes inline fuse holder, ring terminals, and butt connector for battery lead.

Features to know about

Protects Sensitive Vehicle Circuits: Powered Converter Design

Modern vehicles use delicate wiring and electronics that can’t handle extra load from trailer lights. This harness uses a powered converter that senses the vehicle’s brake, turn, and running light signals and draws power directly from the battery instead of the factory circuits. That means your trailer lights get reliable power without risking blown fuses or error codes in your vehicle’s system.

Clean Connections That Don’t Require Wire Cutting: Behind-the-Tail-Light Install

Instead of splicing into wires, the harness plugs in behind each tail light housing. It picks up the signals it needs right there and sends them through the converter box to the 4-pole flat connector. No complicated tracing or cutting—just unplug, connect, and route the converter’s leads where they’re protected from moving parts and weather.

Built for a Solid, Weather-Sealed Setup: Converter Box Mounts Securely Outside

The included converter box is fully sealed, so you can mount it on the vehicle exterior without worry about water damage or corrosion. Once secured with the double-sided tape on a clean surface, it stays out of the way yet close enough for easy access when routing wires.

Ready for Power at the Trailer Connector: Complete Kit with Fuse Protection

The harness includes an inline fuse holder, ring connectors, and a butt connector for running the 12-volt power wire straight to the battery. That fused line protects both your trailer and vehicle wiring while delivering steady current to all lighting functions through the 4-flat plug.

Specs

  • Comparison image of several trailer wiring harness converter boxes with labeled callouts highlighting connectors and design differences for CURT and other brands.

56111 CURT T-Connector - Surface Mount Technology - 4 Wire

Similar to Hopkins HM11143894

Installation Details C56111 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.5

50 reviews
Review sort icon
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:

Very pleased with etrailers.com! Shipping was fast and the product is high qualIty. The harness was easy to install except running the wire to the battery. There are not many good places to run a wire under the car, I ran mine inside. Overall great experience!



by:

I've been happy with the wiring harness.
It works well and has been durable.



by:

Hitch and light hookups. Pleasant professional phone contact. Great educational text and video. Excellent value and prompt delivery. Nothing could have been improved upon. Shipped to Annapolis for Subaru.



by:

Overall pretty good. The appropriate amount of wire was sent, however the quality of the fuses and whatnot were on the low side. I ended up using my own inline fuses as well as my own double sided tape, even the zip-ties were cheap so I used my own there as well.



by:

The harness doesn't work. Power goes into black converter module but no power coming out.



by:

Was exactly as advertised. Fairly easy to install with some standard tools. I recommend soldering the wires instead of butt connectors. Only issue was adhesive pad was not sticky at all. But some gorilla tape did the trick.



by:

Install was pretty easty for the most part. Plug and play with the exception of running the 12V power wire from the battery back. My car had few places to run such a wire but it worked out. Overall it worked very well and I'm very pleased.



by:

Initially I was hesistant to spend so much money on a plug and play unit when I can wire a standard wiring kit just fine, however, I’m glad I did buy this kit. The weather sealed plugs give me piece of mind that I won’t get corrosion in the connections down the road.

I would buy again!!



by:

Great product. Install on my Subaru Impreza wasn't too bad once I drilled a hole and fished the hot lead through the firewall. Instructions were easy to follow, and I was happy that the converter came with an adhesive pad to hide it away behind the bumper without rattling around.



by:

I’ve installed 3 of these and all 3 fail within 2 months, even tried installing the control box inside the car( you are supposed to stick it outside under the back) and it still failed. It may just be not compatible with a 2012 Subaru Impreza, I finally gave up and rigged up a diy battery operated switch system because we do not camp often it works good enough.



by:

This harness was near perfect, the hardest thing was cleaning a spot for the control module to mount to. It's been a while since I installed this so the details are fuzzy but I don't recall any difficulties.
When I connected to my trailer everything worked, after I fixed a bad ground.



by:

I like that I didn't have to hack into any wires with this system. It's almost completely plug and play. The only difficult part was running the power wire from the unit up to the battery. Crawling under my Impreza was really tight and I wasn't sure if the wire was near anything that would destroy it. So, i epoxied 4 metal hoops/rings (had them in my toolbox but you could get metal tubing at a hardware store and cut four short rings) along the frame rail underneath on the drivers side and ran the power wire through them. I still had to finagle the wire up and through the rear axle/exhaust area though.



by:

Looks like a good product however it was not what I needed. I mistakenly ordered trailer wiring instead of tow car wiring. It should have been obvious to etrailer that I was making a common mistake and questioned my purchase since I was also buying parts to tow that car instead of towing something with it. Now I have to eat the purchase and buy another correct part.



by:

Great product, very easy to install. Installed on my 08’ Impreza outback sport. It is a true “plug and play” install, no wires to cut, just route the wiring harness and hook up the connections.



by:

Good kit and glad to have to get my trailer lights hooked up. Fitted my 09 Impreza great. Only 1 thing the sticky pad that attaches the relay box attached to the under said of the bumper well but it would not stay attached to the relay box. So the relay box kept falling off. So I ended up just wrapping it with electrical tape to the backside off my hitch and that works fine.



by:

This wiring harness works great. Installation videos from E trailer were very helpful. The instructions that came with the harness were not for my exact model. E trailer products and shipping were amazing as usual.



by:

Purchased the Curt T Connector about a month ago. Was asked to review the product. So here goes. I didn't get a chance to install it until today. First let me say I am an avid DIYer. I build or fix everything. So this was really a sweet product. I would rate it as anyone with simple hand tools can do a great job. First it was straight forward and installed just like it said. No issues at all. It took a bit longer than suggested as I need to run the power line and secure it to the unibody of the Subaru. Works great looks good as you can not tell it is there. The only real complaint is the electrical connectors, they are really cheap as I broke the first 2 I tried to crimp. So I just soldered the connections and used a blister wrap to protect the wires.



by:

Great kit. Plug and play. Very straight forward. Running the power cable to the battery is tricky, but that's no fault of the kit.



by:

Our mechanic, who installed the products we purchased on eTrailer, reported that the hitch was good quality, but somewhat tricky to install on our Subaru Impreza. They had to drill custom holes in the car body to fit the hitch frame. They also needed to run the wires from the car battery up front through the interior of the car (through panels and the trunk) to reach the wiring harness for the hitch. The full installation will end up costing around $250 in addition to the $*** for parts. I was impressed with eTrailer's customer service with a single rep assigned to each customer!



by:

I bought the etrailer kit for a 2011 Impreza. The installation was a snap and after a year, it has never failed, the connector housing and weather cover have remained in good condition. I saved a lot by doing it myself, following the included, well written instructions.

I am coming back for any future wiring needs.



by:

About 6 months after I installed this unit I started getting weird lighting issues with my car. I went out one morning and found my turn signal on without my keys even being in the ignition or the signal switch on. Then my brake lights stopped working and I was almost rear ended multiple times before I realized they were out. As soon as I remained the trailer wiring all my lighting problems were solved. The module must have not been to weather proof and failed causing my issues.



by:

It made it easy to hook up an Impreza harness, since Subaru did NOT provide an easy-plug harness (like they do on Foresters, etc). We had a minor problem due to our poor ground, but redrilled a hole and cleaned up the paint, and it worked w/a better ground.

Kevin K. profile picture

Kevin K.

7/30/2015

Works perfectly after one year! We use it almost weekly.



by:

Awesome love the products my Subaru loves pulling my camper to New Hampshire and and getting hay weekly and yes my 2011 Subaru wrx pulls hard



by:

Works perfect with my Subaru Impreza hatchback. I had my mechanic print the rear electrical wiring diagram for my car. I tapped into the 15 amp power supply at the trunk light instead of running under the car to the battery to get power.
I also picked up the hitch mounting bracket for the wiring:
It looks nice and clean and is always ready to tow my landscaping trailer.

Heather A. profile picture
Etrailer Expert

Heather A.

3/12/2018

Dane,Thank you for your review.It is important to run the power wire directly to the positive side of the battery and not any other power supply on the vehicle. This wiring harness is made for vehicles that have sensitive wiring and is designed to pull amperage directly from the battery. Failure to connect the power wire to the battery may result in damage to the vehicle wiring. I have attached a link to help with routing the power wire.



by:

Fantastic kit! Just like the video shows, this is a very easy install. The only pain was running the line up to the battery and avoiding any moving or hot parts.

Install took a little over an hour, with most of the time running the wire to the battery.

I installed to our 2010 Impreza wagon.

I did use electrical tape to loom up the wires (the black looks less noticable) and zip tied the wire along the hitch. Be sure you keep the wires away from the muffler which will get hot.


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

  • Correct Trailer Hitch Receiver and 4-Way Wiring For a 2011 Subaru Impreza Hatchback Single Exhaust
    You hit the nail on the head with those Landon. Both the Curt # C11315 and Draw-Tite # DT24959 are going to fit your 2011 Subaru Impreza hatchback with the single exhaust outlet. I recommend the Curt as a better option since the receiver is manufactured here in the US. For the wiring you should go with the Curt # C56111 as it uses factory style connectors to splice into the tail light wiring. The Curt # C59236 is a universal option but must be spliced into the factory wiring.
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  • Hitch Installation Instructions for 2012 Impreza Hatchback
    For the 2012 Impreza Hatchback, the correct hitch would be the Curt # C11286. For WRX or WRX STi Hatchback models, the correct hitch would be # C11120. The # 11317 you mention is a fit for the WRX Sedan model only. Of all the hitch manufacturers we deal with, I believe Curt does the best job on their installation instructions. I have linked you to the instructions for both hitches mentioned above. If you click the provided link, you can see a video showing the hitch being installed on...
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  • Trailer Wiring Harness for a 2014 Subaru Impreza WRX Hatchback
    I do have a trailer wiring solution for you but there are no T-connector type harnesses available for the 2014 Subaru Impreza WRX hatchback. But you can use a hardwire harness, # C59496.
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  • How to Wire a 2011 Subaru Outback for a Brake Controller
    The 2011 Subaru Outback is not equipped with an under-dash connector for installing a brake controller, but a controller can still be installed using our Brake Controller Install Kit, part # ETBC7 if a 7-way trailer connector is needed, or # ETBC6 for a 6-way connector. The install process, although a bit involved, is pretty straightforward and can be completed by the average do-it-yourselfer. We have plenty of help available online through the website, through our experts, or by phone. Other...
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  • Flat Tow and Trailer Tow Wiring Recommendations for a 2008 Subaru Impreza
    The wiring kits used for flat towing are designed to receive signals while the wiring for trailer towing is designed for sending signals. For your 2008 Subaru Impreza I recommend using the Tow Ready Tail Light Isolating Diode System # TR118821 for your flat tow wiring and then the Curt # C56111 is you have a 5-Door Wagon or the Curt # 56061 if you have a Sedan for your trailer wiring. The Tow Ready wiring will splice into your OEM wiring while the Curt options tee in behind your tail lights...
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  • Wiring Harness Installation on my 2008 Subaru Outback Sport
    For your 2008 Subaru Outback Sport there is a different installation process than what the non Sport models have. You will also be using a different harness the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # C56111 is the correct harness for the Sport models. Instead of this one installing into a factory plug it will install behind both of your tail light housings and use the signals it receives from there to send the power out to the trailer through...
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  • Recommended Trailer Hitch and Towing Equipment for 2010 Subaru Impreza Hatchback
    As long as it's not a WRX STi model, we do have a hitch available for your Impreza. I'd recommend the Draw-Tite Class I receiver, part # DT24959. A ball mount is not included and you'll need the # C56111 trailer wiring harness and the # 19256 for a 1-7/8 inch or # 19258 for the 2 inch trailer ball. The trailer coupler should have the necessary ball size stamped onto it. The hitch itself has a 2000 lb towing, 200 lb tongue weight capacity which does not necessarily mean that the vehicle...
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  • Wiring 2010 Subaru Outback to Tow European Spec Trailer
    A European 7-Way trailer connector has the same functions that a US 4-Way has. We do not have an adapter or a harness made with a European 7-Way. If your 2010 Subaru Outback was made for the North American market then you can use the Curt harness, # C56040 if it's NOT a sport model or # C56111 for sport models. In order to get it to work with a European 7-Way, you would need to cut off the 4-Way end and then use another converter, # 118158 . You would attach the the white, green, and...
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  • How to Install a Brake Controller in a 2011 Subaru Outback Wagon
    If installed properly a brake controller like the Prodigy P3 # 90195 would not cause any damage to any components of your vehicle. If anything it will help preserve the life of your vehicle's brakes as it will help slow down the vehicle when towing a trailer by allowing the trailer to do some of the braking. This controller would not connect in any way to the braking system of your vehicle so it would not damage it. You will need to start with a 4-way (if you do not have one). For that...
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  • Recommended Trailer Hitch for a 2008 Subaru WRX 5-Door Wagon w/ Single Exhaust
    There are only two hitches that will fit a 2008 Subaru Impreza 5-Door Wagon with Single Exhaust model. The best one is going to be the Draw-Tite Trailer Hitch item # DT24959. This hitch is custom fit and bolts to your Subaru with included hardware. This hitch and the Curt item # C11315 are both 1-1/4" hitches and are the only ones available for your vehicle. Your Impreza does not have the capacity to transport a 300 lbs motorcycle and the carrier. You will need to tow your motorcycle behind...
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  • Installation of Curt T-Connector Vehicle Wiring Harness # C56111 on a 2008 Subaru Impreza
    To install the Curt T-Connector Vehicle Wiring Harness, part # C56111 on your 2008 Subaru Impreza you will want to make your tail light connections first and then attach the white ground wire to a good, clean ground on your vehicles frame. After those connections are made you will want to see where the converter box ends up being located and find a good spot that the converter box can attach to. Try to find a large enough area that will allow you to attach all of the double-sided tape on...
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  • Is A Trailer Hitch Available For My 2011 Subaru Impreza WRX 5-Door Wagon w/ Dual Exahaust
    For your 2011 Subaru Impreza WRX hatchback wagon, you will need the CURT Trailer Hitch Receiver, part # C11120, which fits the Wagon model with dual exhaust and quad exhaust tips.This CURT hitch is Class I 1-1/4 inch hitch, and includes a drawbar, pin and clip. To complete your towing setup, you may be interested in the following: Curt Wiring, part # C56111 1-7/8 Inch Hitch Ball, part # 19256 For hitch accessories such as bike racks, you will be limited to those that are compatible with...
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  • Will The EcoHitch Stealth Trailer Hitch Receiver Fit a 2012 Subaru Impreza WRX Aftermarket Exhaust?
    I reached out to EcoHitch to see if they had any fitment notes on your 2012 Subaru Impreza WRX with the Invidia R400 Gemini Exhaust. They were not able to confirm or deny that their Stealth Trailer Hitch Receiver # 306-X7261 will fit with that exhaust. I have linked an image below that shows where the receiver attaches to the frame so that you will be able to see the area where you may have clearance issues with your aftermarket exhaust. The Curt T-Connector Vehicle Wiring Harness # C56111...
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  • Trailer Wiring Recommendation for a 2015 Subaru Impreza
    At this time the only trailer wiring harness I can recommend for a 2015 Subaru Impreza hatchback is a universal kit like the part # 119250KIT that will hardwire to the vehicle. The part # C56111 is for older model Imprezas so I cannot recommend it for you. The Curt Hitch part # 11286 that you referenced has also been confirmed as a fit for your vehicle.
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  • Recommended Trailer Hitch Receiver And Towing Components For 2011 Subaru Impreza Outback Sport
    Your 2011 Subaru Impreza Outback Sport has a towing capacity of 1000 lbs and max tongue weight of 200 lbs. As long as you trailer and load is less than these numbers, you will not have any issue. If you have the single exhaust, I recommend the Draw-Tite Sportframe Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4" # DT24959, but if you have the quad exhaust I recommend the Curt Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4" # C11120. For a ball mount, I recommend the...
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  • Recommended Wiring Harness for a 2010 Subaru Impreza
    Welcome back! I have a couple of options for a wiring harness but it depends on what model your 2010 Subaru Impreza is. From what I can tell the Outback Sport model is a hatchback so if that's the case you'll need the 5-Door Wagon option but wanted to list both. Sedan - Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item # 56061 5-Door Wagon - Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item # C56111
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  • Recommended Trailer Wiring Harness for a 2009 Subaru Impreza Hatchback
    Trailer wiring harness # 56061 is for Sedan models of the 2009 Subaru Impreza. For your hatchback you can use T-connector harness # C56111. Or you can use hardwire harness # 46255. Considering the T-connector is easier to install and costs less than the hardwire option I would go with it, # C56111. I have linked a video showing how it installs.
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  • Recommended Trailer Hitch, Wiring, And Ball Mount For 2009 Subaru Imprezza
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  • Recommended Trailer Hitch for Towing Small Rental Trailer With 2008 Subaru Impreza
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  • Can Curt C11315 Class I Hitch Be Welded as Well As Bolted on 2011 Subaru Impreza 5 Door
    According to Curt, although it isn't necessary, their # C11315 class I hitch could be welded into place rather that bolted as the installation instructions state, or welds could supplement the bolts. However, doing so would void the hitch warranty. If you'll be doing some light duty towing with the hitch, you'll also need a trailer wiring harness like # C56111, a ball mount like # C45521, a hitch pin like # PC2 and a hitch ball like # 19256 for a 1-7/8 or # 19258 for a 2 inch ball. I've...
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  • Recommended 4-Way And 7-Way Wiring For 2010 Subaru Outback Wagon Towing A Camper Trailer
    I am a little puzzled why there would be a 7-way connector on the camper you are buying but as you said it has no brakes. If your Outback is the Sport model I recommend the Curt T-Connector Vehicle Wiring Harness, part # C56111. This plugs into the connections points located behind the tail lights on your Outback and you then run a hot lead wire to the positive side of the battery. I have attached a link to an installation video for this harness on an Impreza which is a different vehicle...
    view full answer...
  • Trailer Hitch for a 2012 Subaru Impreza WRX STi Sedan
    We list only the Curt trailer hitch # C11317 that you referenced as a fit for the 2012 Subaru Impreza sedan WRX STi model. I have included a link to the installation instructions for you to view. The instructions do not exclude models with that light at the bottom center, the hitch receiver should be below the rear fascia once installed. Not all models appear to have that light but they do have the the same fascia design and at least a spot for the light so it does not appear to be an...
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  • Replacement Hardware Kit for Hidden Hitch Trailer Hitch # 75673 for a 2010 Subaru Outback Wagon
    You will need the replacement hardware kit, # RHK. Enter in the hitch number and hitch manufacturer where indicated on the page and click add to cart and the correct kit will be assembled. I have also included a link to the installation instructions and a link to a video showing a typical installation. For wiring you can use # 118467 if your Outback is not a Sport model or # C56111 if it is a Sport model with single exhaust. For a ball mount, I recommend the etrailer ball mount kit #...
    view full answer...


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