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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. 4 Flat
  5. Trailer Hitch Wiring
  6. No Converter
T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Retail:$53.60
Our Price: $37.83
You Save: 29%
Custom Fit Vehicle Wiring

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T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector No Converter 118270
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-One connector plugs directly into OEM tow package harness - no cutting, splicing or tapping required. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118270 or order online at etrailer.com. Free expert support on all Tekonsha products. Great prices and Fastest Shipping for T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (468)
  • Q & A (0)
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Tekonsha Custom Fit Vehicle Wiring

  • Custom Fit
  • 4 Flat
  • Trailer Hitch Wiring
  • Tekonsha
  • No Converter

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-One connector plugs directly into OEM tow package harness - no cutting, splicing or tapping required.


Features:

  • Provides a 4-way flat 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 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Insert fuses and relays (included) in engine compartment
    • Locate connection points beneath your vehicle, along the frame rail
    • Plug in connectors
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 7.5 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your vehicle's factory tow package wiring harness, which is located beneath the vehicle, near the frame rail on the passenger's side. Once you've plugged in the connectors, insert the included fuses and relays into their locations in the fusebox, which is located in the engine compartment.


Once installation is complete, the 4-way flat 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 4-pole connector itself - to help prevent corrosion.




118270 Tow Ready T-1 T-Connector - OE Replacement 4-Flat

Item # 118270

Installation Details 118270 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - 118270

Average Customer Rating:  4.9 out of 5 stars   (468 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-One connector plugs directly into OEM tow package harness - no cutting, splicing or tapping required.

by:
2013 Buick Enclave

Gave this order 5 stars for the prompt service and the product was just as described. I ordered a drawtite Hitch and wiring connector for my 2013 Buick Enclave. The hitch and wiring connector arrived quickly. I also ordered a bracket for the four wire connector within 10 minutes of the first order, which was shipped first, it was shipped by the USPS. All of the items fit perfectly and was easy to install following the excellent instructions. Great job! Recommend etrailer for all your towing needs.

Kershaw G.

8/6/2018

perfect fit working fine



by:

Hi. The hitch and wiring fit like a glove. Looks
Like it came from the factory new. Love the
fact the draw tie hitch can hide away under the
bumper cover. Highly recommend this
Product. I will pass the word about your
company to all my contacts in the business.
Thanks for all your help Stephanie. Look
Forward to doing business with you again



by:
2015 Chevrolet Traverse

Purchased hitch and wiring harness.
Great
products. Easy to install.
Fast delivery.



by:

Very good product love the explanatory videos. The videos alone make the purchase worthwhile.



by:

Easy installation. Everything fit perfect. Wiring harness was a little tricky but the manufactures plug was hard to get to. After installation I was able to put my access door back on.



by:

Highly recommend this wiring kit. It was extremely easy to install, the directions were super easy to follow. Me and my son had it done in 10 minutes.



by:

Great product! Easy to follow instructions. Everything needed came in the kit. I also watched an [online] video from etrailer before installation which made the job sho much easier. Thank you.



by:

THANK YOU! I got a hitch receiver and wire. Adam was very helpful to make sure I got the right products I needed for my vehicle. Very easy installation!



by:
2015 Buick Enclave

I ordered a hitch kit, along with the wiring harness for my 2015 Buick Enclave. They arrived in 3 days with free shipping. I watched the installation video on YouTube twice. I but my car rear wheels on a set of ramps and the installation was complete in about 45 minutes. It was super-easy and EXACTLY as the video had shown. Rarely does a company exceed expectations so completely. Ordering was easy. Shipping was fast. The quality of the hitch and wiring harness are great. The videos for both the hitch and the wiring harness installations were very well done and easy to follow. The hitch was a perfect fit on my vehicle, no adjustments, adapters, spacers, etc. Icing on the cake is that the factory trim plate covers the hitch when not in use, you can't even tell it's there. A big thank you, super impressive!

Etrailer Expert

Katrina B.

7/25/2022

Id be happy to help you with this. This key is a direct replacement key for a SportRack bike rack, roof box, roof rack, and ski or snowboard racks. In order to find the correct key for your application, you will need to get the number off of the front of the locking core.



by:
2015 Buick Enclave

Easy install especially with the etrailer website video.



by:

I am very happy with this hitch and how easy it was to install. The price was right as well.



by:
Saturn Relay

I'm 72 years old and I did not have any problem putting on the hitch. The wiring was more of a problem. My vehicle required removing the lower plastic part of the fender so I could attach your plug to the vehicle socket. Also the installation of the relays was not obvious. I eventually went to your video and looked for the mark on the top of the relay and used that to decide how to install them. This should be shown more carefully. Also not everyone is going to have lubricant for the connections, you should include a small tube of this or mention it on the order.

Woody L.

11/20/2017

fine... no more problems



by:
2017 Chevrolet Traverse

Love the product!! Easy to assemble, and easy following instructions.



by:

Everything worked as planned. The harness is well constructed.



by:
2014 Chevrolet Traverse

I bought a Hidden Hitch receiver and a wiring harness for my 2014 traverse. Both fit great and were installed in less than an hour. Shipping was fast and on time. Great prices and great service. Thanks for all you do.

Jake H.

6/14/2016

Wiring harness is still working great after a year. Its been completely trouble free. :



by:
2015 GMC Acadia

My delivery was fast and accurate. Installed the Trailer Hitch and Wiring following the included clear instruction. Everything went smoothly and I'm very happy I ordered from etrailer.com.

Great P.

3/7/2018

Product is great, no issues. Next year I will be looking for a setup to flat tow something behind a motor home and will come to etrailer first.



by:

This was an extremely easy and fast installation. Simple as locating the factory wiring tow package plug in the rear wheel well on the passenger side, plug in the 118270 and then route and secure the wiring. Probably took all of 10 minutes.

Charles P.

2/21/2018

2016 Chevrolet Traverse. No problems at all.



by:
2015 Chevrolet Traverse

Products are great, install was easy. Big brown truck dropped it off, and an hour later I had both the hitch and the light kit installed. Highly recommend etrailer!

John M.

7/11/2017

Still working perfectly

John M.

7/11/2017

Still works perfectly



by:

very easy installation. hardest part was removing the rear bumper. and it was fairly easy( i worked as a body man for 43yrs.) seems to be of good quality. i havent had any issues yet. just plug in connecter and go.

Raymond M.

12/6/2021

perfect!!! use for my trailer and carrier for my wifes wheelchair. no problems!!



by:
2016 Buick Enclave

This kit could not have been simpler to install. Worked perfectly as well. Instructions are failsafe. My install was on a 2016 Buick Enclave. The rear connection port which came on the car from the factory was a little cramped, but otherwise not a problem. As is any under-car job, a lift or ramps make this job simpler.

Briney56

3/24/2018

Perfectly.



by:
2015 GMC Acadia

It has been a year since I installed the receiver and wiring harness on my 2015 GMC Acadia. I am very pleased. They have gotten used a lot. I do lawn care and use it to pull my trailer. I drove my trailer with my Harley Davidson on it all the way to Tennessee. I would recommend the little wiring harness support bracket that I purchased on every order. It is great and makes the 4 flat plug look tidy bu not dangling down or being tied up. No issues at all. Thank you E-Trailer for inquiring about it after it has been installed for a year.



by:
2016 Chevrolet Traverse

It went on as easy as it looks in the video, which is surprising for most products you buy online. You can't go wrong with putting it on, as long as you follow the instructions and watch the videos they have on here.



by:
Buick Enclave

Installed on a 14' Buick Enclave. etrailer has fantastic instructions and support I knee what had to be done before hitch arrived. No surprises and was able to tow from TX to WI with no issues. Took about an hr to install by myself without lifting car. Also took pictures to document process.

I did have one minor issue when I arrived at the trailer rental place and running lights didn't work. A fuse blew after 1st trip with it. Replaced and haven't had issues since. Very minor and don't think reflects any negativity onto quality of product.

I also highly suggest purchasing plug clip mount with this hitch. If not the plug is dangling and it's not expensive to add the mount. Glad I did and it looks nice.



by:
2015 Buick Enclave

My Buick came without a hitch or electrical connections. After searching the internet for the parts I decided to go with etrailer because there were clear explanations on line for each item needed. The harness installed just as the directions indicated with no hassle. It has performed flawlessly over the past year. Same for the trailer hitch receiver. The install was done in less that an hour. The next time I need trailer hitch parts I'll use etrailer.com



by:
2014 Buick Enclave

Another quality product from etrailer.com! Item shipped and arrived very quickly. All parts and instruction were there and easy to follow. Installed hitch on a 2014 Buick Enclave. Fit was great and everything lined up perfectly. I had a little problem bolting the item in. The threads on the vehicle were extremely corroded. Cleaning them with a brush, as directions suggested, was not enough . I went and purchased a tap. Ran that through all of the threads in the frame and that did the trick. Bolts easily threaded in after that. Would also suggest you look at the installation videos. Directions are in black and white and found them difficult to follow for installing the fuses from the wiring kit in the car. Video could not have been any clearer! Either way you really can not go wrong purchasing this. The price is outstanding for the quality as all of my purchase with etrailer have been.


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Show More Reviews

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

  • Will Tow Ready T-One fit 2015 Chevrolet Traverse
    Yes, the Tow Ready T-One Vehicle Wiring Harness will fit your 2015 Chevrolet Traverse. This wiring harness will plug directly into your vehicle's factory tow package. I have attached an installation video and of this wiring harness on a 2015 Buick Enclave, which will be similar to your Traverse. The installation instructions are also attached.
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  • Recommended Trailer Wiring Harness for 2014 Chevrolet Traverse
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  • Parts Needed to Add a Trailer Hitch and Wiring Harness on a 2016 Buick Enclave
    If you are wanting to add a trailer hitch and a wiring harness to your 2016 Buick Enclave I recommend installing the Draw-Tite Max-Frame Trailer Hitch Receiver # 75528 and then either the T-One # 118270 for a 4-Way or the T-One # 118271 for a 7-Way. If you would like to have both a 4-Way and a 7-Way then install the T-One # 118271 and swap out the connector with the Hopkins # HM40920. To mount the 4-Way near your receiver you need part # 18144 while the 7-Way requires part # 18138. Instructions...
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    I sure the wiring harness is there and I get your frustration because even our installers have mentioned how difficult it is to find it. I have linked a video below for the item # 118270 4-way wiring harness. It uses the same connector as the item # 118271 you are looking to install in your Enclave. If you skip forward to the 1:35 point of the video you'll see the step. If your 2017 Buick Enclave does not have the towing package you will still have the rectangle connector needed to attach...
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  • Trailer Wiring Needed for 2017 Chevy Traverse with Rear Air Conditioning Unit
    Since your 2017 Chevrolet Traverse does not have the factory connector but does have a rear air conditioning unit I recommend first checking to see if you have the factory tow package. You can locate the plug for the Tekonsha T-One # 118270 at the rear passenger side as is shown in the attached installation video. If you don't have the factory tow package then you will want to go with the Hopkins # HM11141150. I spoke with my contact at Hopkins who said that he hasn't heard of having any...
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  • 4-Way Trailer Wiring Recommendation for 2017 Chevy Traverse
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    The correct T-One Vehicle Wiring Harness for a 2013 Chevrolet Traverse is part # 118270 which offers plug-in-play installation. It provides the most basic trailer connector used for common trailer lights like stop, turn, and running.
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  • Correct Wiring Harness for a 2017 GMC Acadia Limited Without the Tow Package
    Good question! The T-One Vehicle Wiring Harness # 118270 will fit your 2017 GMC Acadia Limited whether it has the factory package or not. The plug should be located at the rear of your vehicle behind the rear passenger side tire (see attached photo). If you had the tow package you would simply make this connection and be done with it but since you don't you just need to use the fuses and relays that come with the T-One to activate the wiring. We actually do this exact thing on another...
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    Image 1 for
  • Trailer Towing Setup Recommendation for 2014 Buick Enclave
    You are on the right track! The Draw Tite hitch part # 75528 is a confirmed fit for your 2014 Buick Enclave as well as the trailer wiring kit # 118270. The wiring mount part # 18144 will also give you a place to mount the 4-way that bolts to the bumper. The ball mount part # C45036 that you referenced is would also work well if you need 2 inch drop. I attached a help article that details how to pick out a ball mount drop as well.
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  • Trailer Hitch Recommendation for 2014 Buick Enclave
    For your 2014 Buick Enclave we have the Draw Tite hitch part # 75528 which is a confirmed fit and would work well for towing a small trailer. This attaches to hole already present in the frame of your vehicle. For trailer wiring you'd then want the part # 118270. See install videos for the wiring and the hitch attached below. Since you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop...
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  • Easy to Install Trailer Wiring Kit for 2015 Buick Enclave without Trailer Wiring
    We have a very easy to install trailer wiring kit for your 2015 Buick Enclave that comes with needed relays and fuses to easily activate the tow package wiring of the vehicle with the Tekonsha kit part # 118270 for a 4-way or part # 118271 for a 7-way. This easily plugs into a connector that's found at the rear of your vehicle.
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  • Installing Trailer Wiring Harness # C56181 on 2013 Chevy Traverse
    I've linked you to install instructions for the wiring harness you mentioned, but I'd recommend using the Tow Ready # 118270 which doesn't require a power wire that's run to the vehicle's battery. The # 118270 includes a wiring harness that plugs into the tow package connector located under the vehicle on the passenger side to the right of the muffler, as well as the fuses and relays necessary to activate the factory trailer wiring tow package. The video I've linked shows the harness being...
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  • Where Does Tow Ready Trailer Wiring Harness 118270 Plug Into on a 2013 Buick Enclave
    Trailer wiring harness # 118270 will plug into a single connector on your 2013 Buick Enclave. You will need to locate the vehicle’s connector located under the Enclave on the passenger's side. Look for an opening to the right of the muffler. Reach up into opening to locate the grey connector. Disconnect the mating protective cover and discard. Connect the Enclave connector to the mating harness. All connector surfaces should be clean and free of dirt. Be careful not to damage the locking...
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  • Which Circuits Does the T-One Vehicle Wiring Harness 118270 Activate
    The relays and fuses that are included with the T-One Vehicle Wiring Harness part # 118270 for your 2016 Chevrolet Traverse only activate circuits that are related to lighting, not shift point. These circuits are listed for you below: Trailer Park Lamp Left Turn Trailer Stop/Turn Right Turn Trailer Stop/Turn Trailer Back Up Trailer Brake Trailer Power
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  • Trailer Hitch and Wiring Recommendation for 2017 Chevy Traverse
    For your 2017 Chevy Traverse without the tow package the hitch I would recommend is the Draw Tite hitch part # 75528 as it has a great price, is made by a quality manufacturer, and has great towing capacities. I attached an install video for this for you to check out as well. For trailer wiring you then would want the Tekonsha kit part # 118270 which is a confirmed fit. I also attached an install video for this for you to check out as well. Since you wanted to do some towing you might...
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  • Wiring Harness for 2016 Buick Enclave Without Tow Package
    The trailer wiring harness you would want to use with your 2016 Buick Enclave that does not have a tow package is the T-One Vehicle Wiring Harness # 118270. This kit comes with the necessary fuses and relays to activate the tow package since your Enclave did not come with it. I have included a link to an install video of this harness being for you to take a look at.
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  • Recommended Trailer Hitch and Wiring for Towing with a 2016 Buick Enclave
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  • Recommendation Between 4-Pole and 7-Way Trailer Connector for 2017 Chevy Traverse
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  • Trailer Light Wiring Recommendations for a 2013 Chevy Traverse LS
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    view full answer...


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