Price: $20.93

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

Item # C56027

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curt custom fit vehicle wiring trailer hitch t-connector harness with 4-pole flat connector
curt custom fit vehicle wiring no converter c56027
curt custom fit vehicle wiring trailer hitch no converter t-connector harness with 4-pole flat connector
curt custom fit vehicle wiring trailer hitch no converter
curt custom fit vehicle wiring 4 flat c56027
curt custom fit vehicle wiring trailer hitch
curt custom fit vehicle wiring no converter 4 flat

In Use/Installed

2012 chevrolet traverse custom fit vehicle wiring curt no converter 4 flat in use
2012 chevrolet traverse custom fit vehicle wiring curt trailer hitch 4 flat t-connector harness with 4-pole connector
2012 chevrolet traverse custom fit vehicle wiring curt no converter 4 flat c56027
2012 chevrolet traverse custom fit vehicle wiring curt trailer hitch in use
2012 chevrolet traverse custom fit vehicle wiring curt trailer hitch 4 flat c56027
2012 chevrolet traverse custom fit vehicle wiring curt no converter c56027

  • Custom Fit
  • Trailer Hitch Wiring
  • Curt
  • 4 Flat
  • No Converter
The best technical support and full custom fit vehicle wiring installation instructions. Lowest price Traverse custom fit vehicle wiring guarantee and expert service. Chevrolet Traverse, 2012 custom fit vehicle wiring by Curt are available from For expert service call 800-298-8924 to order your Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part number C56027, or order online at

2012 Chevrolet Traverse - Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Quickly and easily install a 4-way trailer connector on your Chevrolet Traverse with this custom harness. T-connector plugs directly into existing wiring - no cutting, splicing or tapping required.


  • Provides a 4-way flat trailer connector at the back of your Chevrolet Traverse 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 either behind tail lights or behind rear bumper
    • Plug in T-connector
  • Comes with dust cap for 4-way flat connector
  • Made in the USA
  • Limited 1-year warranty


This custom-fit T-connector plugs into your Chevrolet Traverse's wiring harness, which is located either behind the driver's-side and passenger's-side tail lights or behind the rear bumper.

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.

56027 CURT T-Connector - 4 Wire

C56027 Installation InstructionsInstallation Details C56027 Installation instructions

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 Custom Fit Vehicle Wiring C56027 Review

Today we're going to review part number C56027. This is the Curt T-Connector Vehicle Wiring Harness with this 4-way Flat Trailer Connector. This is a custom fit part, it is designed to fit a 2008 to 2012 Buick Enclave and Chevrolet Malibu excluding the LTC model. Also, fits the 2009-2012 Chevrolet Traverse. Now in a custom fit part, I always recommend to go to our website, use our fit guide, put in your year and model of vehicle and it will show you if this will work for you application. This part does provide this 4-way flat trailer connector at the back of your vehicle to power your trailer signal lights.

It does connect very quickly and easily, there is no cutting or splicing of wires. Basically, you just locate your connection points behind the taillights or the rear bumper and plug in these T-connectors and attach your ground and you'll be ready to go. This does come with a nice dust cap to cover the 4-way when you're not using it. Basically, if you're not plugged in to the trailer, you could just put your dust cap over the terminals, that'll protect that from any damage or from the elements. This part is made in the USA. Comes with everything showing here.

It has a nice set of detailed instructions that'll tell you where to attach it. Even has pictures of showing you where to attach it. As I mention, when you do install this, what you want to do is you'll start on the driver side and take the T-connector with the yellow wire. What you'll do it locate your connection points, usually behind the taillights or the rear bumper. Plug this inline with the wiring harness, then on the passenger side, you'll do the same.

The one t-connector with the green wires for the passenger side. Same way you'll connect this inline to the wiring harness. Then you'll have this remaining white wire with the eyelet on it. This does need to connect to a good clean ground if there's one available you can use it, if not, you can drill a hole and use the grounding screw that's including to get a good clean ground. Now, it does come with some extra cable ties, to take up any slack in the wiring. That should do it for the review on part number C56027.

The Curt T-Connector Vehicle Wiring Harness with this 4-way Flat Trailer Connector.

Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56027

Average Customer Rating:  4.9 out of 5 stars   (53 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your Chevrolet Traverse with this custom harness. T-connector plugs directly into existing wiring - no cutting, splicing or tapping required.

- C56027

by: David Koenders08/10/2017

The entire wiring took me fifteen minutes. I went to my son in laws house, picked up his trailer that I am borrowing, and everything worked just well. I put the trailer hitch on a few days ago, and all though it took me longer to do than I anticipated (two hours instead of one) I was very pleased with your instructions. It took me longer than I anticipated because I had a very small clearance to get my socket and ratchet past the muffler....on both sides. And I dropped the muffler at the back end, but it only gave me an additional inch to work with. I made the mistake of tightening five of the bolts, and when I went to insert the sixth bolt it did not line up to the hole by a smidge amount. I then had to go back and loosen the other five half way out to give me movement, then get the sixth bolt started into the hole, and tighten all six of them. The slight clearance on the two above the muffler allowed me to use a wrench 1/8 turn at a time. But eventually I got the job done. Thank you, Dave Koenders 418606

- C56027

by: Ryan S.07/16/2013

Loved this product. It's so easy to install and hook up. I was ready to tow in no time. 89845


This product if great, I havent had any problems to date. Thanks again.

Ryan S - 07/16/2014


- C56027

by: Cheapass Ron01/30/2013

I'm just your run-of-the-mill exceptionally satisfied customer. Full disclosure: I'm a cheapa$$. After I found what I wanted from etrailer, I surfed the part numbers looking for a cheaper source. After a few minutes, I asked myself "what the heck am I doing? has put up the money and time in a great website and fantastic how-to videos, and even if they're more expensive, they *deserve* my business - they earned it." So I bought. Additional full disclosure: nobody was cheaper. Don't waste your time looking. Oh, the hitch and wiring kit fit perfectly. What else would you expect? 64624

- C56027

by: Bud F. Mid Michigan08/13/2013

Hitch is everything I could want. It was so easy to install took about 30 minutes like you stated on the web. Finish is extraordinary. fit perfect. The wiring harness was also easy to install and of excellent quality. I couldn't believe it got here so fast 2nd day from when ordered. I was able to fit my rear bumper door back on the car hiding the hitch completely from view. The video presentation was so helpful with the installation. Your CEO should be very proud of the well trained, organized and sincere staff representing e-trailer. I will certainly recommend your company to all I know. 94868

- C56027

by: Brandon01/16/2013

I had never installed a trailer wiring kit before, but it was a very easy install. It fit my 2010 Traverse perfectly. If I had a question it was addressed in the instructional video posted on the website. I looked at other wiring kits, but they were much more expensive, and you had to buy the 4 pole connector cover seperate (this one comes with one). All around very satisified. I also bought the mounting bracket (18144), and the hole placement was an exact fit with my hidden hitch (no drilling required). 63311

- C56027

by: Jennifer I03/30/2015

So my phone call started out... "I'm a single mom and I have no clue what I need but I know what I want to do...." Nicole got me exactly what would fit for my car and all of the additional accessories to make it work long term. Couldn't be happier - everything arrived exactly as ordered and early!! Terrific company! and whoever Nicole is... she deserves a raise! 181509

- C56027

by: Bruce B.04/08/2014

This was the easiest install ever. The hitch bolted directly to the hole pattern on my Chevy Traverse as advertised. The instructions on you tube were as easy to understand as the instructions they sent. The wiring harness is plug and play easy. Two hour install by myself. I recommend this product to everyone. The quality of this hitch is second to none. I am impressed! 124378

- C56027

by: Jason02/10/2015

My mother received the package, but the box was torn to pieces. I will not know if anything is missing till I get to her home, in about 2 weeks. So, based upon what she said, I would suggest a second wrapping of cardboard on heavy item when shipping. I will let you know the real condition and it anything is missing when I get there. Thanks, Jason 173205

- C56027

by: Spring06/28/2016

Worked perfectly and didn't take my husband too long to install it on my vehicle. He grounded the light harness correctly and everything worked as it should. Shipping was quick and notifications were received. The company followed up to make sure everything was good. This is what online, custom shopping experiences should be like. 265856

- C56027

by: Roger Cravens05/18/2014

Once again E Trailer has done an outstanding job on quality and delivery.Product was exactly as described.The online video saves a ton of time from reading instructions.I wish every vendor I order from had the same business ethic as E Trailer.Super !!!! 131156

- C56027

by: Brian05/03/2016

This product was exactly as described and fit my vehicle perfectly. I had to remove the tail lights during the installation but after that hooking it up was a breeze. The product has functioned flawlessly for over a year now. 248207

- C56027

by: Brent07/10/2017

Works great. Not sure why this was described as excluding LTZ model, I bought it thinking it should be the same, after all they are just taillights. My suspicion was correct, and the harness works good. 404119

- C56027

by: Walt Apelt03/09/2016

Hitch and electrical were quickly delivered in good shape. Installed in about an hour and looks to be of fine quality. All parts present and instructions your video made installation a sap. Thanks. 240359

- C56027

by: Chris Oberle08/08/2013

Everything fit fine and I did not have any trouble installing our trailer hitch to my wife's Buick Onclave. Would recommend your company to others needing an after market tow system. 94053

- C56027

by: Kurt03/29/2017

The wire harness is great. It shipped immediately after payment was made and installation was as easy as the product video which I had watched before making the purchase. 360169

- C56027

by: Charles P.12/27/2016

Purchased Curt Trailer Hitch and Wiring Harness for my 2011 Chevy Traverse. Good value and was able to install myself. Would definitely recommend. 328081

- C56027

by: Rick W.09/29/2017

Very easy to find what I need for my vehicle. Ordered a hitch and wiring for my Chevy traverse. Shipped as advertised with sturdy packaging. 437683

- C56027

by: Brian L.08/09/2016

Awesome trailer hitch & wiring! Everything was straightforward and easy to install. Great product that makes towing small trailers a breeze! 281652

- C56027

by: David P05/12/2015

Excellent video instruction from etrailer website. Very easy install. This is truly a hidden hitch can not be seen with cover/skirt on. 192073

- C56027

by: Harlan M.05/19/2017

I am very happy with your wiring harness. It was very easy to install and your video was very easy to understand and informative. Thanks 382786

- C56027

by: Scott05/31/2016

Purchased this wiring harness along with the Hidden Hitch Trailer Hitch Receiver; they were both very easy to install, and work great! 254340

- C56027

by: Tim H09/13/2016

Easy to attach. Makes the job very simple. Only struggle was gushing the harness down past the taillight to under with the vehicle. 294125

- C56027

by: Kevin L04/01/2017

Product was as advertised, installation was easy especially with video on their website. Will definitely purchase from them again! 361384

- C56027

by: Dan08/06/2016

Excellent hitch and price. Took only couple hrs to hook it and the wiring harness up. Hitch very heavy and well built. Love it! 280792

- C56027

by: Jim H08/01/2014

Just what I was looking for. Installed in 30 minutes. Thanks. Knew how to remove tail lights. And how to rein wires to hitch. 144004

- C56027

by: Frank c07/17/2012

Fast shipping and great customer service! I would recommend you guys to anyone who needs trailering accessories. Thanks guys! 48352

- C56027

by: Mike H.09/17/2016

Product was awesome!! Simple to use! Installed everything in about 15min. Will definitely purchase from etrailer again. 295980

- C56027

by: Ken O01/03/2017

Fit as specified to the vehicle. Easy to follow instructions and all needed hardware included. Performing great. 329596

- C56027

by: Greg S.01/02/2017

Donna was awesome. Had it overnighted and was there at 1030 in the morning. 329340

- C56027

by: R Alaniz05/04/2015

Everything went as planned easy to install great product for the price 189881

- C56027

by: RC10/24/2016

Very easy to install. Great customer service when ordering. 310274

- C56027

by: Kelly06/01/2015

Everything I ordered arrived quickly and was easy to install. 199617

- C56027

by: Robert H.05/05/2015

Great product with very good / easy to follow instructions 190382

- C56027

by: Jeff B06/10/2017

I watched the video, then installed. Very quick and easy. 391338

- C56027

by: Bob S.05/09/2017

Put on 2012 Buick Enclave. Work exactly as advertised. 378080

- C56027

by: Jerry l06/01/2015

works great, installed about a hour, no problems 199626

- C56027

by: Gregg J08/29/2016

Installed very easily. happy with the p roduct 288960

- C56027

by: Gabriel02/08/2017

Excellent. thanks for the service.Very good. 339951

- C56027

by: Adrian04/30/2013

Very easy install only to 15 to 20 mint utes 78512

- C56027

by: Julie t06/11/2016

Great on time delivery. Easy installati on 260196

- C56027

by: Miranda D.08/13/2017

Very easy to install and works great!!! 419677

- C56027

by: c5602701/07/2015

worked as advertised good product. 167963

- C56027

by: Shawn H08/30/2016

Wiring kit went in like a breeze. 289406

- C56027

by: Rod07/23/2014

Everything went together perfect. 142675

- C56027

by: José R06/13/2017

Excelente producto fácil de usar 392546

- C56027

by: Roger N.10/06/2014

Easy to great! 154740

- C56027

by: frank s07/13/2017

good product. great price. 405498

- C56027

by: Larry G.01/30/2014

easy install, fast service 115216

- C56027

by: Jon C09/11/2012

Installed in about 10 Min 54272

- C56027

by: Warren08/14/2015

Worked just as i needed. 219214

Show More Reviews

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

  • Left Tail Light on 2010 Chevy Traverse Stopped Working After Installing Trailer Wiring Harness
  • Trailer wiring harness # C56027 is a T-connector, a pass-through device that doesn't draw any power itself so the only way that it could be causing the tail light to not work is if a pin inside one of the connectors is bent or broken, dirt or corrosion is in one of the plugs, or the unit does not have a sufficient ground. You will want to unplug the connectors and check the vehicle side and trailer harness connectors to see if any pins are damaged or if anything is dirty. For the...
    view full answer...

  • How Can I Connect a 7-Way Wiring Harness to My 2010 Chevrolet Traverse
  • Yes you will need a T-Connector Wiring Harness with a 4 Pole Flat Trailer Connector # C56027 to connect to a 7-way. If you're planning to use a brake controller with your Traverse you will need the Universal Installation Kit for Trailer Brake Controller - 7-Way and 4-Way Flat # ETBC7. This will be all of the wiring you'll need for the brake controller. I've included an installation video of the wiring on a 2011 Traverse which will be very similar to yours. If you don't have...
    view full answer...

Do you have a question about this Custom Fit Vehicle Wiring?

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Info for this part was:

Test Fit:
Joe V
Photos by:
Theodore B
Video by:
Andrew K
Expert Research:
Michael H
Installed by:
Jeff D
Video Edited:
Jacob T
Video by:
Andrew L
Video Edited:
Sue W
Test Fit:
Randy B
Video Edited:
Chris R
Updated by:
Sarah W
Test Fit:
Jared G
Photos by:
Melissa S

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