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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 7 Round - Blade
  6. No Converter
T-One Vehicle Wiring Harness with 7-Way Trailer Connector

T-One Vehicle Wiring Harness with 7-Way Trailer Connector

Our Price: $63.28
You Save: 44%
Custom Fit Vehicle Wiring

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Shipping Weight: 1.74 lbs
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Custom Fit Vehicle Wiring 118272 - No Converter - Tekonsha
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Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom wiring harness. T-One connector plugs into existing tow connector - no cutting, splicing or tapping required. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118272 or order online at Free expert support on all Tekonsha products. Great prices and Fastest Shipping for T-One Vehicle Wiring Harness with 7-Way Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (145)
  • Q & A (0)
  • Photos

Tekonsha Custom Fit Vehicle Wiring

  • Custom Fit
  • Trailer Hitch Wiring
  • 7 Round - Blade
  • No Converter
  • Tekonsha

Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom wiring harness. T-One connector plugs into existing tow connector - no cutting, splicing or tapping required.


  • Provides a 7-way, blade-style trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 4-pole, 5-pole and 6-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection point behind rear tire
    • Plug in T-connector
  • Constructed of 16-gauge bonded wire
  • 1-Year limited warranty


This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind the rear tire, on the passenger's side.

Once installation is complete, the 7-way 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 plug on your automobile and the 7-pole connector itself - to help prevent corrosion.

118272 Tekonsha T-1 T-Connector - 7 Wire

Item # 118272

Installation Details 118272 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Satisfaction Score:

Customer Reviews

T-One Vehicle Wiring Harness with 7-Way Trailer Connector - 118272

Average Customer Rating:  4.8 out of 5 stars   (145 Customer Reviews)

Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom wiring harness. T-One connector plugs into existing tow connector - no cutting, splicing or tapping required.


Everything came quickly and was easy to install with one other person to help. The instructional video was a huge help. Specific to my make ,model, and year. Definitely would buy from E trailer again.


I didn't realize it's been a year already. Trailer brake works GREAT. Was even able to hide the control box for a complete factory appearing install. Highly recommend this unit if you need a trailer break. You won't be disappointed.

2019 Ford Explorer

Excellent product but very poor packaging. Just threw it in a huge box with a hitch in it with absolutely zero packaging material, hitch had lots of paint chipped off of it and it was a miracle that none of the wiring was damaged.

2018 Ford Explorer

2018 Ford Explorer Limited. This item needs to include the mounting bracket. I had to shop around for one to finish my project. The instructions were also not clear for my vehicle. There were two sets of wires where it showed one. I took a gamble and choose one. It was more time consuming than expected. The 1 day shipping was also not one day. It took longer than expected to receive it. Otherwise, it works.

2015 Ford Explorer

Attached easily to existing wiring on my 2015 Ford Explorer. Only problem I had was it did not come with a plate to attach the plug to the tow hitch so that was disappointing. Had to make my own, lucky I had a plate from an old set-up that I configured for my use.

2014 Ford Explorer

The hitch was very easy to install once the brackets holding the mufflers were removed, a second person to help in holding the hitch when installing it is a big help. The “T” wiring harness was also easy to install, highly recommend using some sort of electrical tape to help seal the two connection pints from water / snow. The 7 pin / 4 straight adaptor is exactly what I needed, different trailers, different plug types.


well assembled product of good quality works great also !


The hitch fit perfect and the wire connected great...Good product


This was very easy to connect. Easy enough for a women to do! I highly recommend this wiring harness. Worked great for my pop up camper and 2017 ford explorer!


Easy install does just what it's suppose to do have no problems great product


Connected perfectly.



Very good and easy to install

2016 Ford Explorer

Just what I needed to replace my damaged wiring harness. This one is made 10 times better than what the dealership had originally "hacked job" installed... only thing left to do is add the electric brake controller. But glad my wife's explorer is back to working with a trailer attached. Thanks again etrailer for the grrat product and for answering my questions.

Michael M.


Been great, have no problems but have only used the trailer hookup a couple of times. But still satisfied with your product.


The harness fit perfectly and was easy to install. Yes



The harness fit easily and is still working great. It looks like it was a factory install

2015 Ford Explorer

Works great! Was easy to install!!


The light kit does not contain the connector mounting bracket. The bracket is shown in the photos of the kit. The kit description does not say the bracket is not included. I am unable to complete my install with out the bracket

Lou L.


The harness comes with the trailer end wires taped together to allow easy routing to the hitch. The issue is no tape was used to insulate the wires from each other. This resulted in multiple blown fuses when i connected the harness to the car.Some additional tape or a warning to not plug in to the car harness until the trailer plug is connected would have avoided the problem


Everything is going fine so far I installed the hitch, T-harness and 7 way plug on my 2019 ford explorer but now I need to find out what relays and fuses I need to install in the vehicle. Do you have a KIT with instructions and maybe a brake controller? Please

Etrailer Expert

Heather A.


According to the Ford website, you will need a 30 amp fuse in location 27 and a relay in location 37. The M-case fuse is available from an auto parts store, but you might need to see the dealer for the necessary relay. To activate power to the brake controller plug under the dash, check location 46 for a 30A J-case fuse and install one if its missing. In the fuse panel in the passenger compartment, make sure theres a 5A fuse installed in location 4. This panel is located under the dash to the left of the steering column. I recommend the Tekonsha P3 brake controller part # 90195 and the adapter for Ford Explorer part # 3035-P. The P3 is our most popular and reliable brake controller.


Hitch went in without a hitch. The wiring harness routing per the video became a problem and had to come up with another route, otherwise it was very good.



It works well and consistently without any problems

2016 Ford Explorer

Easy to install and works great!


Wiring harness was a little involved but it was due to Explorer having custom hitch mounted. Overall it did not take long and I am still very happy with my purchase, works great!

Michael M.


Still working as expected and looks like it did the day I installed it. Worked out great!


First wiring harness sent was not correct. This item was recommended by etrailer employee. Telephone call with another employee straightened it out and return was easy. The hitch looks nice, except the screws on the bracket (4) have all rusted and look bad. My vehicle is a Ford Explorer XLT. When it's all washed and waxed it looks great till my eye sees those 4 little screws. You've reminded me how much it bothers me so I will get some quality black screws to replace. I am subtracting a star for the incorrect info I initially received and one for the cheap rusty screws.


The wiring harness (pn 118272) fit perfectly, no problem. A little daunting to get the factory connectors apart but after that, simple
The hitch (pn 76034) fit like a dream. HOWEVER, I had to make a trip to get replacements for the 7/16 x 2.5 carriage bolts -- could not in any way tighten the nylon lock nut because the stove bolt shank could not be held in the slot. The replacements were 12mm x 60mm carriage bolts. Draw-tite should change their hardware. Also, the bolts provided to attach the hitch to the car frame were standard zinc coated -- the factory bolts I removed were galvanized. Again, Draw-tIte should change their hardware
The trailer socket with mounting bracket (pn HM40975) just plain will not fit on my car unless I mount it below the receiver (not a good idea). Not sure what I'm going to do yet but may have to fabricate something.
Overall, great product but be prepared to use other than the hardware provided by Draw-Tite.


Easy install. Mounting Brackett for the plug would have been nice.

Etrailer Expert

Jenny N.


I recommend part # PK12711U as a mounting bracket that you can use. It would be mounted to your bumper.


It’s not working , very poor wiring diagram. Or plug itself is bad

2016 Ford Explorer

Only reason not 5 stars due to initial confusion caused by picture on the product pkg & instructions. Picture shows wire harness with a plug on each end. In fact, one end has 2 plugs installed & the other end is taped off harness w/o a plug. that plug needs to be put together by user & written instructions very minimal. However, true to form, Etailer has an excellent video which cleared this all up. so far works like a charm. Easy install

2014 Ford Explorer

This is one of many products I have purchased from the past several years. The wiring kits and hitches that I have purchased have all been accurately described and received quickly. is my "go to" distributor for hitches and wiring kits.

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