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

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

Part Number: 118270
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$39.51
Retail:$54.61
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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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Tekonsha Custom Fit Vehicle Wiring - 118270

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

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

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. profile picture

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:

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:

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:

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:
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:
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!

Katrina B. profile picture
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:
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. profile picture

Woody L.

11/20/2017

fine... no more problems



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. profile picture

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. profile picture

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:
2017 Chevrolet Traverse

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



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. profile picture

Charles P.

2/21/2018

2016 Chevrolet Traverse. No problems at all.



by:

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



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. profile picture

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 profile picture

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:
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:
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:

Excellent hitch and wiring harness from e-trailer. It fits perfectly looks like it was factory mounted, and my factory installed access cover is still able to be used. Love it!



by:

Everything worked as planned. The harness is well constructed.



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. profile picture

John M.

7/11/2017

Still working perfectly

John M. profile picture

John M.

7/11/2017

Still works perfectly


25
468
Show More Reviews

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

  • Trailer Wiring Harness For 2016 GMC Acadia Without Factory Tow Package
    We do indeed have a trailer wiring harness that will fit and work with your 2016 GMC Acadia without the factory tow package. The harness is labeled as being "for factory tow package" but is not exclusive to that; it comes with the fuses and relays needed to activate the harness. The correct part is the following: - T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector # 118270 You will first insert the fuses and relays included with the # 118270 in the locations...
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  • Correct T-One Vehicle Wiring Harness for a 2013 Chevy Traverse
    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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  • Trailer Hitch and Wiring Recommendation for a 2015 Chevy Traverse without Tow Package and Rear AC
    Your 2015 Chevy Traverse does have the rear air conditioner so for trailer wiring you would need the part # 118270 as it has been confirmed to work with the rear AC on Traverse models without the tow package. For a hitch the part # 75528 would be a great choice as well. I attached an install video for you to check out as well. If 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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  • 4-Way Trailer Wiring Recommendation that Fits All Models of 2014 Buick Enclave
    Yes, all of the 2014 Buick Enclaves have the needed connector at the rear to install the Tekonsha trailer wiring harness part # 118270. This will give the vehicle a 4-way for a trailer to connect to.
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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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  • T-One 4-Pole Trailer Connector For 2015 Buick Enclave Without Towing Package From Factory
    If the 2015 Buick Enclave did not technically come with a tow package, you can use T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector part # 118270 that comes with the fuses that you need to activate the tow package features. I have attached an installation video for your reference.
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  • 4-Way Wiring for 2017 Chevrolet Traverse Without Tow Package
    Even though you don't have the tow package you can use the T-One Vehicle Wiring Harness for Factory Tow Package # 118270. This will plug into your factory connector at the rear of your 2017 Traverse. It also includes all of the necessary fuses and relays to activate the tow package so it doesn't matter that your vehicle didn't come with it. I have attached an installation video below for your reference.
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  • Recommended Trailer Hitch and Wiring Harness for 2017 Chevy Traverse
    The Curt Class III Receiver Hitch # 13424 referenced in your question, which is confirmed to fit your 2017 Chevy Traverse, does require that the fascia door panel be removed during installation. Once the trailer hitch is installed, it is unlikely that you will be able to reattach the fascia panel. I have included an installation video on this vehicle that you can use for reference. This is a very nice, Class III hitch that will provide you with a 2 inch receiver opening and has a towing...
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  • Constant Power on Pins Inside 4-Way When Installing T-One Harness on a 2015 GMC Acadia
    I spoke to my contact at Tekonsha about the issue you are having with the T-One Vehicle Wiring Harness part # 118270 on your 2015 GMC Acadia. They said they have heard of this issue before but it is not very common. For starters, you will need to switch the orientation of the relays if they do not look like the ones in the attached photo. Unlike most relays, the pins are positioned in a way that will allow them to be installed incorrectly so you will need to check this first. If the relays...
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  • Trailer Wiring Needed for 2017 Chevy Traverse with Rear Air Conditioning Unit
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    The Draw-Tite Hitch # 75528, which is a confirmed fit for your 2015 Buick Enclave, does come with the hardware needed for installation; it is a complete bolt-on installation that does come with bolts. I have added a link to a video of this hitch being installed on a '15 Enclave for you to take a look at. As for wiring, "regular" wiring would not work; for an aftermarket harness to work on this particular vehicle you would need to have the factory tow package to use T-One Vehicle Wiring...
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  • Installing Tekonsha T-One Harness on 2014 Buick Enclave without Tow Package
    The factory port to which the Tekonsha T-One Vehicle Wiring Harness # 118270 connects is located around the area you mentioned looking (behind passenger side wheel well), but based on the picture you attached I think you may have found a different plug that's not used for this purpose. The correct plug is going to be pretty high up on the vehicle and it does take a good amount of reach to access it. I have attached an image of what the plug looks like (the picture is showing it with it...
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  • Trailer Hitch Recommendation for 2014 Buick Enclave
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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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  • Trailer Hitch and Trailer Wiring Harness Recommendation for 2015 GMC Acadia Without tow Package
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  • Fuse and Relay Locations for Tekonsha T-One Vehicle Wiring Harness # 118270
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  • Recommended Trailer Hitch, Wiring, and 4-Pole Bracket for 2013 Buick Enclave without Tow Package
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  • Trailer Hitch and Wiring Recommendation for 2017 Chevy Traverse
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