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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. 4 Flat
  4. Factory Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
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

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$38.38
Retail:$53.61
You Save: 28%
Custom Fit Vehicle Wiring

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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 (485)
  • Q & A (0)
  • Photos

Tekonsha Custom Fit Vehicle Wiring

  • 4 Flat
  • Factory Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • Plug and Lead
  • Tekonsha
  • No Converter
  • Visible

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:

Ratings & Reviews

4.9

485 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:
2017 Chevrolet Traverse

The hitch and wiring harness worked great! Easy installation too! It even stays hidden behind the fascia when not in use. Thank you etrailer.com!!!



by:
gmc Acadia

Worked great with my GMC Acadia, found a YouTube video that shows where the harness attached



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:
2017 chevrolet Traverse

I as a woman with no mechanical ability was able to install the wiring harness on my 2017 Traverse. Other than accessing the tow outlet behind the wheel on the vehicle everything else was easy peasy. The kit comes with everything including directions. The only thing is the zips ties provided were to short. I felt like a rock star after installing and finding that everything worked. No more old fashioned hand signals when towing the utility trailer.



by:

Quick delivery. Excellent product. Easy instructions. Easy install. Worked great.



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:
2015 Chevrolet Traverse

Worked great



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:

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:
2015 Chevrolet Traverse

Easy to install, just watch the U-tube first. Kinda of pain to reach the wiring connector.



by:
2017 Buick Enclave

Package arrived quickly, installation was a breeze. Step by step video made all the difference in the world.



by:
2015 Buick Enclave

Easy install especially with the etrailer website video.



by:
gmc Acadia

Worked perfectly for my 2024 GMC Acadia. Super easy install and clear instructions provided for the fuses.



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

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:
2017 GMC Acadia Limited

This was so easy didn't have to cut into any wire great product.



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:
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:
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
485
Show More Reviews

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

  • 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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  • Custom Wiring Harness for a 2014 Buick Enclave Without a Tow-Package
    Thanks for your question, Cameron. Yes, the Tekonsha part # 118270 is a confirmed fit for your 2014 Buick Enclave if equipped without a tow package. It's possible that one of the relays or fuses are defective causing the factory plug to not get the power it needs to work. It's not common at all for that to happen but it can. I'd double check those. If you do decide to replace them and you're still not getting power, it could mean that there could be some sort of damage to the plug on...
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  • Trailer Wiring Recommendation for 2014 Chevy Traverse
    Since your 2014 Chevy Traverse has a hitch but no wiring it sounds like someone installed a hitch so they could use a bike rack or cargo carrier. The wiring that I recommend is the T-One # 118270 because we have found the Tekonsha wiring to be the most reliable. This says it's for the tow package but it can actually be used if you don't have the tow package either. The fuses and relays that come with this kit are used to activate the tow package. Attached are the installation instructions...
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  • Trailer Signal Lights Not Working with 2014 Buick Enclage
    The relays should not be affected on the Tekonsha T-One Vehicle Wiring Harness # 118270 if the turn signal fuses were blown in your 2014 Buick Enclave. If the fuses are damaged, simply replacing them should solve the issue. It looks like the fuse for the left turn is in position F21 and the right turn fuse is in position F17. You can check to see if they are damaged and in need of replacement. These should be available at any local auto parts store.
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  • Trailer Wiring For A 2014 Buick Enclave Without Towing Package
    Hi Blake! You are going to want the Tekonsha T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector # 118270. This includes the fuses and relays needed to activate the tow package as your customer's 2014 Buick Enclave was not equipped with it. It's plug and play, so you will not need to run any separate wires to get the job done. As a side note, if they wanted a 7-way, they could get the Tekonsha T-One Vehicle Wiring Harness for Factory Tow Package - 7-Way...
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  • Recommended Wiring Harnesses for a 2023 GMC Acadia w/out the Factory Tow Package
    Hey Kieran. The 2023 GMC Acadia's all come with the necessary wiring beneath your rear bumper. As far as wiring is concerned, the only difference in yours and one with the towing package is yours doesn't have the 4-way or 7-way connector. Here are the parts you will need to add a wiring harness to your Acadia: 4-Way Connector - Curt T-Connector Vehicle Wiring Harness item # C56325 7-Way Connector - Curt T-Connector Vehicle Wiring Harness item # C56326 I have linked a couple of installation...
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  • Trailer Wiring Harness Recommendation for 2016 GMC Acadia
    Hey Tom, if you are wanting a 7-way trailer wiring harness that fits your 2016 GMC Acadia the correct kit would be the part # 118271 or if you need a 4-way part # 118270. Both of these kits install easily and are plug and play like you are wanting. They also come with all of the needed components to activate the factory wiring as well. Do you need a hitch as well?
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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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  • 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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  • Where is the OEM Wiring Plug Located on a 2012 Buick Enclave
    According to the installation instructions for your 2013 Buick Enclave, the vehicle’s towplug will be located on the rear passenger side of your vehicle.Locate the opening just to the right of the muffler. Up in the opening you will find the vehicle's tow plug. The wiring will have a grey plug at the end and this plug is where # 118270 4-flat harness will plug in to your Buick's wiring. I have liked a installation video that will show you exactly how to install the # 118270 wiring harness.
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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 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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  • Adding a Trailer Wiring Harness to a 2015 Chevy Traverse LT without Factory Tow Package
    You have a couple of options for adding a trailer wiring harness to your 2015 Chevy Traverse that did not come with the factory tow package. If your trailer has a 4-Way flat connector on it then you can use # 118270 to add a mating 4-Way to your Traverse. If the trailer requires a 7-Way then you can install # 118271. In either case the harnesses include the fuses and relays to make the harnesses fully functional on your Traverse. I have linked videos showing example installations of each...
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  • Comparing Curt and Draw-Tite Trailer Hitch Receivers for 2017 Chevrolet Traverse
    The only significant difference between the Draw-Tite # 75528 and the Curt # 13424 is the capacity. Since both of these far exceed the towing capacity of your vehicle that really doesn't make a difference. If I were to recommend a hitch for your 2017 Chevy Traverse it actually wouldn't be either of these. Instead, I would choose the etrailer Trailer Hitch Receiver # e98863. This hitch has the same design and capacity as the Curt. What sets it apart from the other two is the matte black...
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  • Will Tekonsha T-One Wiring Fit 2015 Buick Enclave Without the Tow Package
    The Tekonsha T-One # 118270 wiring kit is compatible with your 2015 Buick Enclave whether or not you have the tow package. If you did have the tow package you would simply connect the wiring but since you don't have the tow package you need to install the included fuses and relays as well. The wiring harness will still plug in like it does if you were to have the tow package. Attached is an installation video of this wiring harness on a 2015 Enclave that you can reference. If you can't...
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  • Are Safety Chains Needed for the Tow Ready # 63153 Cargo Carrier
    Safety chains aren't necessary for a hitch mounted accessory like your cargo carrier or for a bike rack, since they are attached directly to the hitch receiver, versus a trailer that couples to a ball mount that attaches to the receiver. For extra security you could use a locking hitch pin like part # e98882, but a pin and clip like part # PC3 would be just fine, as well. If the basket or the cargo stored on it would obscure the tailllights on lyour Traverse, an LED light kit # 98174LED...
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  • Recommended 4-Way Wiring Harness for Towing With 2013 Buick Enclave
    It sounds like you do not have a factory trailer connector on your 2013 Buick Enclave. If that is correct, I recommend the T-One Vehicle Wiring Harness # 118270. I would choose the Tekonsha wiring over other options since we have found them to be the most reliable. This wiring harness plugs into the connection point beneath your vehicle along the frame rail. It also includes the necessary fuses and relays for installing. If you do have the factory tow package and OEM tow package port...
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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.
    view full answer...
  • Trailer Wiring Harness for 2016 Buick Enclave
    Even if your 2016 Buick Enclave does not have the factory tow package it may still have the connector that mates with the one shown in the linked photo, which is on part # 118270. This kit includes the fuses and relays required to activate the tow wiring even if your vehicle was not equipped with the tow package. Another option is to use the ZCI Zero-Contact harness kit # 119250KIT. This unique product installs without having to cut or splice any of the car's wiring. It uses ferrite sensors...
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  • Trailer Hitch and Wiring for 2017 Buick Enclave Towing Cargo Trailer
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  • Trailer Hitch and Wiring for a 2016 Buick Enclave
    We do have trailer hitches and wiring for your 2016 Buick Enclave. A popular option is Draw-Tite trailer hitch # 75528. This is a Class III trailer hitch with a 2 inch receiver. I have linked a video showing an example installation of the hitch for you. For wiring you can use # 118270 to add a 4-Way flat trailer connector at the back of the vehicle. I have included a link to a video showing an example installation of the wiring as well. Since it sounds like you will be doing some towing...
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  • Trailer Wiring Harness for a 2015 Chevy Traverse LS with or without Factory Tow Package
    The term "tow package" means different things for different vehicles and manufacturers. The definitive way to know if your 2015 Chevy Traverse has the factory tow package is to have a dealer run the VIN in their system and they can tell you how it is equipped. But for wiring, it does not matter in this case because wiring harness # 118270 fits models with or without the factory tow package. I have included a link to a video showing an example installation for you.
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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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  • Trailer Wiring Harness for a 2015 Chevy Traverse without Tow Package and with Rear Air Conditioner
    Since your 2015 Chevy Traverse does NOT have the tow package but Does have the rear AC unit I recommend wiring harness # 118270. It includes the necessary fuses and relays to activate the wiring tow package and will be easier to install that trying to adapt a different harness to fit.
    view full answer...


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