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Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
(38 reviews)
Price: $45.63
In Stock
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Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Part Number: C56051
In Stock
$45.63
Retail:$72.95
You Save: 37%
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- All Info
- Reviews (38)
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- Photos
CURT Custom Fit Vehicle Wiring - C56051
Highlights
- Custom Fit for Your Vehicle: Works with your vehicle's wiring
- Tow Ready Setup: 4-flat connector powers trailer stop, turn, and tail lights.
- Plug-and-Play Install: T-connector plugs into factory wiring—no cutting or splicing.
- Reliable Signal Flow: Built-in converter syncs vehicle and trailer lighting functions.
- LED Compatible: Works properly with trailers using LED light assemblies.
- Durable Performance: Rated 3 amps per stop/turn circuit for consistent lighting power.
Features to know about
Installs Fast Without Cutting or Splicing: Plug-In T-Connector
Wiring a trailer can be a headache, but this harness makes it simple. The Curt T-Connector plugs directly into existing wiring behind the interior trim panels, so there’s no cutting or splicing needed. It’s ready to connect right out of the box, giving you a clean install that looks factory-built and gets you towing in minutes.
Handles Trailer Lighting Safely: 4-Pole Flat Connector with Converter
This harness gives you a standard 4-flat connector that powers your stop, turn, and tail lights. Built-in converter circuitry makes sure the trailer lights receive the correct signals from the vehicle’s combined wiring system. It’s designed for reliable performance with proper current flow through each circuit.
Supports LED Trailer Lights: Compatible Electronic Design
If your trailer uses LED lighting, you’re covered. The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector is fully compatible with LED trailer lights, so there’s no flickering or weak signal output. You can hook up confidently knowing your trailer lights will shine bright and consistent every time.
Durable Power Where It Counts: 3 Amps per Stop/Turn Circuit Rating
Some trailers draw more power than others, and this harness is built to handle it. With a 3-amp capacity per stop/turn circuit, it gives you extra headroom over basic wiring kits. That added capability means dependable function even when running multiple lights or longer wiring runs.
Protects Connections from Moisture and Dirt: Weather-Ready Setup
Keeping dirt and corrosion out of your electrical system is key for long-term reliability. A light application of dielectric grease on the connectors helps maintain a solid connection and keeps moisture away, ensuring your trailer lights work every time you plug in.
Specs
56051 CURT T-Connector - Surface Mount Technology - 4 Wire
Similar to Tekonsha 118437 and Hopkins HM11143175
This Product Fits The Following Vehicles
- 2006 - 2015 Honda Civic Coupe - excluding Si
- 2006 - 2015 Honda Civic Coupe - excluding Si
- 2006 - 2015 Honda Civic Coupe - Si models
- 2006 - 2015 Honda Civic Coupe - Si models
Customer Satisfaction Score:
85% were satisfied with this product
15% of customers were not satisfied
- Product did not meet expectations
- Wrong item was ordered
Ratings & Reviews
4.7
38 reviews
by:
Kelsey
09/28/2026
2014
Honda
Civic
Very easy to install. Works great.
by:
Adrian I Villarreal
03/25/2026
1 year old. Works every time I connect it.
by:
Tom N
03/07/2017
2012
Honda
Civic
The videos of hitch and wiring kit installs were easy and direct to my vehicle very easy and a fun quick project no guess work
by:
Todd J Maberry
05/19/2015
I was delighted with the instillation procedures and instructions. Thank you for the informative videos and wiring harness diagrams.
There is a couple of things I would like to point out. One would imagine that most of us do not have a lift or another helper. Like me all I had was jack and a jack stand which creates a whole new dynamic of an installation. With this in mind it would of been so much easier to somehow stabilizethe long thin 1/2" metal strip with welded nut on end by using a throw away metal U-Shape clamp that would hug around the metal strip holding it firmly around the protruding corrugated corrugated beam structural beam which in turn stabilizes the metal strip, holding the nut firmly over the hole would then eliminate the need for a helper. Let me make it clear on did it all my self with use of duck tape. Further while I was laying on my back under the jack I held or balanced one end of the high bar with my feet and the other end with my 2 hands and after trial and error I finally got it installed after many attempts. There is almost to different ways to install with a helper and a lift and with out a helper Also great plug and play wiring harness. It would have been nice to had a video for that but after scouring the instructions and talking with my friend I got it.
There is a couple of things I would like to point out. One would imagine that most of us do not have a lift or another helper. Like me all I had was jack and a jack stand which creates a whole new dynamic of an installation. With this in mind it would of been so much easier to somehow stabilizethe long thin 1/2" metal strip with welded nut on end by using a throw away metal U-Shape clamp that would hug around the metal strip holding it firmly around the protruding corrugated corrugated beam structural beam which in turn stabilizes the metal strip, holding the nut firmly over the hole would then eliminate the need for a helper. Let me make it clear on did it all my self with use of duck tape. Further while I was laying on my back under the jack I held or balanced one end of the high bar with my feet and the other end with my 2 hands and after trial and error I finally got it installed after many attempts. There is almost to different ways to install with a helper and a lift and with out a helper Also great plug and play wiring harness. It would have been nice to had a video for that but after scouring the instructions and talking with my friend I got it.
by:
Ormond Beach FLA
09/16/2022
Everything worked fantastic. The hitch receiver bolted up easy with the supplied installation helpers. I remember it uses a torque wrench so have one handy.
I used the plug in wire harness and that worked great. I’m an electrician and was ready to splice, solder, heat shrink - but for the forty bucks or so plug and play was the way to go.
I used the plug in wire harness and that worked great. I’m an electrician and was ready to splice, solder, heat shrink - but for the forty bucks or so plug and play was the way to go.
by:
David S.
05/20/2018
Product installed fairly easily. I used it to pull a [rental trailer] full of equipment back from college for the summer. Was a little harder to install that I thought but I got the job done. The wiring was very easy. I'm happy. It works and aid for itself in one pull versus renting a truck.
by:
Steven
11/25/2025
Ordered wrong model reordered correct model
by:
Michael J
08/22/2018
2008
Honda
Civic
Man I am very very pleased with both of my purchases I have recently made. I bought a trailier hitch receiver and the car trailer wiring harness for a 08 civic. They beat all the competition price wise and product wise. Autozone want $190 for the harness and would take time to ship they had it for $30 and got it in two days hooked up within 10minutes.
by:
James
08/17/2018
2018
Honda
Civic
Just received wiring harness for Honda Civic 2013. Piece of cake installation. The instructions are good and the referenced video better. Last week I installed harness on 2018 Honda CVR. Not a piece of cake. Pulled the panels out to install and could not find the module to plug in. Called etrailer and got a tech call back within three hours which I found to be great service on a Saturday afternoon. Took him about three minutes on a speaker phone to fix my problem. Works great and the price is very competitive. If you need help, these are the guys.
by:
Taylor H
07/16/2017
2013
Honda
Civic
Install was smooth. Instruction video was great! Tows kayak and small uhaul trailers well. I have a 2013 Civic LX Sedan.
by:
Kenneth
09/11/2025
A simple solution to what could be a wiring nightmare for me
by:
Dennis P.
01/23/2020
etailer.com ABSOLUTELY ROCKS!
Best Products and Easily navigated web site!
Best Products and Easily navigated web site!
by:
Hollis
11/24/2018
2010
Honda
Civic
product quality very good, instructions to install was excellent, I have no problems since purchase. I expect it to last a long time.
by:
David
04/13/2018
2007
Honda
Civic
As described. Plugged it in and all signals worked the first time.
by:
rory
07/15/2014
plug and play was amazing. easy product to use and install.
by:
Chris Calderin
12/21/2013
2007
Honda
Civic
Great product. Install took maybe 5 minuttes without a fus. Could not be any happier with the product.
Chris C.
12/26/2014
I have since sold the car with the trailer hitch package but it worked perfectly for me.
by:
Gavin
07/20/2022
The harness was fine and looked new
by:
Philip
06/04/2021
Install was easy enough. This is the 2nd harness I'veinstalled. Both quit working 4-6 months after Install. I don't think I'll order a 3rd.
by:
Josh
10/01/2021
2014
Honda
Civic
Have a Honda Civic, 4 door. Sent wiring for coupe.
Brooke M.
10/13/2021
Thank you for leaving a review! Our customer service team should be reaching out to you in the near future.
by:
Patrick
08/22/2022
Great product!
by:
John
05/05/2021
Excellent service.
by:
David
10/03/2022
2015
Honda
Civic
arrived today.will install it tomorrow..i will let you know more after job is completed.thanks.
by:
Brian
11/04/2021
2010
Honda
Civic
Super easy plug and play.
by:
Eric K
12/22/2021
I am very happy with the part and friendly service I received.
by:
Ryan
04/27/2023
2009
Honda
Civic
Easy install for someone with almost no mechanical experience 5 Stars
for sure
for sure
25
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Show More Reviews
See what our Experts say about this CURT Custom Fit Vehicle Wiring
- Recommended Wiring Harness for a 2013 Honda Civic I would be happy to. We have a couple of different options depending on how many doors your 2013 Honda Civic has. I have listed both of them below: Coupe - Curt T-Connector Vehicle Wiring Harness item # C56011 Sedan - Curt T-Connector Vehicle Wiring Harness item # C56051 I have also linked a couple of installation videos so you can see how to get these wiring harnesses set up.
view full answer... - 4-Flat Wiring Harness for a 2015 Honda Civic SI CoupeI would be happy to help you. For your 2015 Honda Civic SI Coupe you are going to want the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item # C56051 you were looking at. This custom-fit T-connector plugs into your Civic's wiring harness, which is located behind the driver's-side and passenger's-side interior trim panels in your rear cargo area. This wiring harness will provide you with a 4-flat connector. I have linked an installation video.
view full answer... - Can a Trailer Hitch for a 2008 Honda Civic Be Used for TowingWe do offer trailer hitch options for a 2008 Honda Civic such as the Curt Trailer Hitch Receiver part # C11391 which is what I recommend using. This trailer hitch can be used for towing but the exact amount if even applicable will be listed in your owner's manual so you will need to look here if you wish to stay within the manufacturer's guidelines. Please note, in order to remain legal while towing you'll also need a trailer wiring harness, the Curt T-Connector Vehicle Wiring Harness part...
view full answer... - Recommended Trailer Wiring Harness For 2008 Honda Civic SedanFrom the photo you sent it looks like you have a Civic Sedan and the # C56051 trailer wiring harness is not designed to fit a Sedan model. It is designed to fit the Coupe only. We do have a solution for you though. I recommend the T-One Vehicle Wiring Harness, part # 118420 if your Sedan is not the Si or Hybrid model. This plugs into the connection points in the trunk area. If you have a Sedan and it is an Si or Hybrid model The harnesses we offer have to be hardwired. I recommend part...
view full answer...
- Trailer Hitch and Wiring Recommendation for a 2009 Honda Civic Coupe SiWe can set you up with everything you would need to tow a trailer with your 2009 Honda Civic SI coupe, but it will be up to you to determine if your vehicle has the capacity to tow what you are wanting to tow. You will need to check the owners manual of your vehicle. For a hitch the Curt part # C11391 would be a great choice as it is a confirmed fit. This hitch has towing capacities of 2,000 lbs total trailer weight and 200 lbs tongue weight. I attached an install video for this hitch...
view full answer... - Trailer Wiring Harness Needed For 2013 Honda Civic CoupeI do have an option for the coupe but the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118420 fits the 2013 Honda Civic Sedan. The wiring harness needed for the 2013 Honda Civic Coupe Excluding SI and Hybrid, is the Tekonsha T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118437. This wiring harness plugs into your vehicle's wiring located behind the driver's-side and passenger's-side interior trim panels in your rear cargo...
view full answer... - Is Curt Trailer Wiring Harness # C56051 for a 2006 Honda Civic Coupe Compatible w/LED Trailer LightsCurt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Item # C56051 is compatible with LED trailer lights. I have included a link below to a video showing an example installation for you.
view full answer... - Parts Needed To Tow a Trailer with a 2010 Honda CivicThe Curt Trailer Hitch Receiver part # C11391 is indeed a confirmed fit for a 2010 Honda Civic. It can then be paired with the Curt Drawbar part # C45521, Curt Hitch Ball part # C40018, and Curt Trailer Wiring Harness part # C56011 for sedan or part # C56051 for coupe to complete your towing setup.
view full answer... - Trailer Wiring Options for a 2015 Honda CivicIf your 2015 Honda Civic is a sedan and not an Si or hybrid then for a trailer wiring harness I recommend Tow Ready harness # 118420. I have included a link to a video showing an example installation for you. For a coupe use # C56051. For a sedan Si use # C56011. For a sedan hybrid use # C59236.
view full answer... - Recommended Ball Mount and Wiring Harness for 2014 Honda CivicSince the trailer hitch on your 2014 Honda Civic is most likely a Class I receiver, you will need a ball mount that is compatible with Class I trailer hitches. First, for a hitch ball I recommend the Tow Ready 1-7/8" Diameter and Short Shank # 19256. This hitch ball has a gross towing weight capacity of 2,000 pounds. Choosing the correct ball mount will depend on what is needed to keep your vehicle and trailer as level as possible. For example, the Sportframe Draw Bar # 3593 is compatible...
view full answer... - Hidden Trailer Hitch Availability for a 2011 Honda CivicWe have the EcoHitch Hidden Trailer Hitch Receiver - Custom Fit - 2" # 306-X7233 which is confirmed to fit your 2011 Civic si. If your Civic Si is a Sedan then you will also need wiring # C56051 and a ball mount kit like part # 3593 with a hitch ball like part # 19256 or # 19258. I took a look at the online owner's manual and it stated not to tow a trailer that exceeds 1,000 lbs so you will want to check your copy of the owner's manual to verify this. When I checked out the online owner's...
view full answer... - Correct 4-Pole Trailer Wiring Harness for 2013 Honda Civic 4-Door SedanWe offer several 4-pole trailer wiring harnesses that provide stop, turn and tail light signals for a 2013 Honda Civic. The harness that is correct for your particular vehicle depends on the version. The part you referenced, Curt T-Connector Vehicle Wiring Harness # C56051, is a correct fit for the 2-door coupe. For a 4-door non-Si sedan, which is what you indicated you have, the correct wiring harnesses available are Curt # C56011 and TowReady # 118420. Both will install in the same...
view full answer... - Trailer Hitch Recommendation for a 2013 Honda Civic Coupe SIWe do sell a hitch for your 2013 Honda Civic SI coupe. For that you would want the Curt hitch part # C11391. For trailer wiring you would want the part # C56051. For a ball mount part # C45521, 1-7/8 inch ball # 19256, 2 inch ball # 19258. You will need to check the towing capacities of your vehicle in the owners manual and be sure not to exceed this figure when towing your Jet Ski.
view full answer...
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
Test Fit:
Joe V
Edited by:
Leah B
Video by:
Andrew K
Written by:
Lindsey S
Expert Research:
Michael H
Installed by:
Jeff D
Video Edited:
Kathleen M
Updated by:
Wilson B
Updated by:
Kristina F
Updated by:
Isabelle B
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Tom N.
3/7/2018
Just like the day I installed t perfect!