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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. Powered Converter
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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

Item # 118467
Our Price: $44.94
You Save: 27%
Custom Fit Vehicle Wiring

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Shipping Weight: 0.76 lbs
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118467 or order online at Free expert support on all Tekonsha products. Great prices and Fastest Shipping for T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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Tekonsha Custom Fit Vehicle Wiring - 118467

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • Powered Converter
  • Tekonsha

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


  • Provides a 4-way flat trailer connector at the back of your vehicle 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, splicing or tapping
    • Locate connection point in rear cargo area
    • Plug in connector
  • Includes ModuLite to ensure that your vehicle's wiring matches that of your trailer
  • Protective connection terminals resist corrosion
  • Comes with dust cap for 4-way flat connector
  • 10-Amp mini fuse included


  • Maximum amperage:
    • Stop/turn lights: 2.1 amps per circuit
    • Tail lights: 5.6 amps per circuit
  • 1-Year limited warranty


This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located in your rear cargo area, either behind the driver's-side trim panel or in the spare tire compartment. You will need to remove some interior paneling to access this harness. Once you've plugged in the connector, insert the provided fuse into the in-line fuse holder.

Once installation is complete, the 4-way flat connector will be stowed in your rear cargo area.

It is recommended that you use a small amount of grease on all electrical connections - the plug on your automobile and the 4-pole connector itself - to help prevent corrosion.

ModuLite Tail Light Converter

A ModuLite power module is built into this T-One connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of your trailer. This power module functions as a tail light converter to combine the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.

T-One Installation on Subaru Forester and Outback Wagon with OEM Backup Sensors

118467 Tow Ready T-1 T-Connector - 4 Wire - Modu-Lite

Installation Details 118467 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Satisfaction Score:

Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118467

Average Customer Rating:  4.8 out of 5 stars   (2633 Customer Reviews)

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


Excellent product as usual from etrailer. This is probably the third wiring adapter I’ve brought from etrailer & they’re always plug & play. The only thing that varies is where the connector is located in the vehicle. Luckily Subaru places them in an easy to reach location. Out new 2022 Outback was the easiest yet. The instructions say to “Store the 4-Flat connector in the spare tire compartment when not in use”. I don’t like the idea of it being closed in the tailgate when in use so I run it through an oval I cut in the spare tire well using a grommet and silicone sealant to ensure it says water tight. The extra wiring is secured to the back side of the bumper and just enough lead hanging out to connect to my utility trailer.



It’s been a year now and it still works like a charm with NO issues

2010 Subaru XV Crosstrek

Very nice quality hitch and wiring harness. 24 Subaru Crosstrek. Easy half hour install on the hitch and 10 minute plug and play on the trailer harness. Very helpful folks at etrailer and super fast shipping


Hitch came in great shape! Got the car apart the fist time and the hardware was wrong??. I called customer service and they shipped me the right one very quickly. Hitch went on easily with minor issues. The trailer harness was literally a plug in job works perfect. On the Subaru wilderness I was able to use a straight hitch. Over all very pleased.

2016 Subaru Outback Wagon

Installing this was SO EASY. I am not an electrician or a mechanic and have never modified any car before, but watching the installation video on the website was super helpful and I pretty much couldn't have done it without the video! I installed this in 30 minutes. I bet a person could do it even faster than that if they were more experienced than I am!

Subaru Outback Wagon

I bought a Curt hitch for my Subaru Outback to allow me to mount a bike rack on it. Therefore I didn't think I'd need the tail light kit when I had it installed. I was wrong.
So adding the light kit later I wanted to install myself if possible. The guys at were great. The kit I thought I needed wasn't quite right for my needs, and they guided me to the proper model. It was inexpensive and easy to install-way easier than I ever imagined. The videos on-line clearly showed to process, and I think I got a professional looking job. Kudos to the etrailer team.


The most difficult part of installing this trailer wiring kit was removing all of the junk I accumulated in my rear compartment to access the connector harness.

Once I did it only took like 3 minutes to completely install and put the floor back in place.

It works flawlessly, but here's a little hint - do not allow your trailer 4-pin connector to be stored outside without a rubber insulating boot on ot to prevent corrosion or wasps from making a mud nest inside it. I use aluminum foil wrapped around in and dielectric grease.

Hope this helps.

2018 Subaru Forester

well haven't put it in yet but the video tells me it should not be hard. I know i did the trailer hitch for my subaru forester that went easy.





The installation process was fast and exactly the way it was described. The wiring harness is exactly as explained and there is plenty of length. It’s perfect for my homegrown jet ski trailer that needed a longer connection. After a year it still looks new.

2022 Subaru Forester

Perfect fit and connection! I ordered this for my 2023 Subaru Forester Wilderness edition. MUCH thanks to Ryan and the eTrailer team for the awesome installation video. The installation was plug and play and took me all of five minutes. Because I don't own a trailer, I chose not to pass the wiring through the grommet, leaving it inside the spare tire well to keep it clean and in good shape.

Thanks again eTrailer!

Subaru Outback Wagon

Great 2" hitch for my '23 Subaru Outback Wilderness edition. Very low profile and looks professional & unobtrusive on the vehicle. I was able to install myself in about 2 hours. The installation video on etrailer website is extremely helpful as a step by step guide.


Love the "no-drill" installation and the fact you can only see the 2" receiver. very clean look unlike other products I see out there. Tow my ATV, boat, trailer, etc with no worries. The trailer connector was an easy plug-in to my vehicle's electrical connection. Videos made the install pretty easy

2018 Subaru Outback Wagon

Everything delivered as ordered with easy installation instructions, and working perfectly. The etrailer website was very helpful in selecting what hardware was needed. A bit disappointed the Curt wireless controller doesn’t seat more securely in the 7- way, but the provided safety strap should keep it in place. Would definitely recommend etrailer and will use it again.



Controller works perfectly when in place. I do now use zip ties to hold it securely in 7-way, which is inconvenient but manageable. Would recommend product to anyone, with that caveat.


The installer stated this was the easiest installation he has ever done.
The hitch, and the wiring worked to perfection.
Could not be happier with your product.


Installed pretty well, hardest part was trimming a portion of the bumper for clearance. Only thing i noticed was the hitch inside the receiver has a tad bit of room to move with a trailer being pulled causing noise from the gap. I may try wrapping the hitch with tape to take the gap up. It may be because the hitch sits low on the bumper which causes this not exactly the hitch's design...overall a good hitch system. vehicle connector works great and plugged in easily


Plug and play once you locate the matching connector in the car.


Good price, easy to install and works great. My favorite part is the low exposure of the knob as opposed to banging your knee on other brake controllers.

2018 Subaru Forester

Perfect Fit, Great Install Instructions and Fair Price. . . what more could you want. They do their best to package but . . . Fortunately nothing damaged


The hitch fit perfectly as did the wiring harness. Hitch install wasn’t as smooth as the video since the video was a 2019 Outback and mine is 2013. I figured it out anyway. Got hung up when I cut out 4” x 4 1/2” fascia per instructions. On the 2013, 4” x 5 1/2-6” is required. The 8 main bolts that hold the hitch and bumper beam were pretty rusty since my Outback is so old. Thank goodness for PB Blaster and 1/2” breaker bar. Not etrailer’s fault but UPS delivered it 2 days later than promised causing wasted good weather and having to finish install in a cold rain. When installing the harness, I couldn’t get by with slotted screwdriver. I had to go buy a trim tool. Advance Auto gouged me $xx for it. It’s basically a split screwdriver. Also the included double sided mounting tape was not included. Fortunately, I had some on hand. Overall, highly recommend. Customer service rep was very knowledgeable and helpful.


Order error on my part was handled and fixed by etrailer personnel quickly and very efficiently. Thank you very much for your handling and understanding.

Subaru XV Crosstrek

Fit and utility are perfect! Installed on a 2023 Subaru Crosstrek and mates to a dual ebike rack.


Class iii Draw Tite trailer hitch:

part was quick and easy to order and I received it sooner than expected. My mechanic said the installation was easily accomplished and looks great on my car. I would not hesitate to order from etrailer again!

Griff M.


I had the Tekonsha wiring harness installed by my mechanic and, as far as I know, there were no problems with the installation. The harness has worked perfectly since then.

Subaru Forester

Easy to install on Subaru Forester, plug n play.
Easily removed and stored in storage compartment.


Item shipped fast and arrived on time. After checking a couple of the videos on the sales page, I easily installed it in just a few minutes. That's good support from


Wire Harness made for my Subaru Wilderness . Easy to order.Delivered on time. Works perfect no modification required.


All items arrived on time and were well packed and as stated. Will update progress after installation. Thanks for the videos, Justin’s suggestions and timely delivery!



Top shelf! Was simple and straightforward to attach. Fittings were located as stated. And it works very well!

Show More Reviews

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

  • Factory Connection Point to Install Trailer Wiring on a 2014 Subaru Forester
    Yes. While there are common places for the factory connections, every so often there are a few vehicles that have it in a different place. Subaru is actually notorious for this. The first place you are going to want to look is forward or rearward of where the connection is supposed to be. If not located there, it may be on the other side of the vehicle. So you would basically follow the same instructions except on the opposite side of the vehicle. In some instances the location was found...
    view full answer...
  • Installation Instructions for Wiring T-One Wiring Harness # 118467 on a 2010 Subaru Forester
    Your 2010 Subaru Forester has a connector on the drivers side of the vehicle underneath the cargo floor hatch and drivers side and center floor trays. Once you have these items removed you will see the connector on the left near the back of the wheel well (see instructions). You will then plug the vehicle side of the wiring harness, item # 118467, in here and mount the converter box out of the way. Once this is done you only need to route the trailer connector and reinstall the vehicle...
    view full answer...
  • Tip for Finding Harness to Install Trailer Wiring on 2015 Subaru Outback Wagon
    Thanks for the tip! We normally only post questions and answers in this section but the info you gave is very helpful so we definitely want it to be accessible to our customers! "I removed the luggage tie down fitting by the wheel arch, which provided a hole to see through as well as allowing the side panel lining to spring out from the side so that I could get my hand in. Sure enough the harness plug was there secured with a small piece of blue tape. I then was able to make the connection,...
    view full answer...
  • Finding Trailer Wiring Install Connector for 2020 Subaru Outback for Tekonsha Trailer Wiring
    Sounds like you did find it. We've heard the trailer wiring harness the 2020 Subaru Outback has for installing the # 118467 can be buried a bit and that you have to reach pretty far back to get it so based on what you described you have found it. I attached an install video link to this page that shows how we found it on a similar 2019 Outback. Here's text from a review we got from a customer detailing their experience finding the harness as well: "The only problem I had was in "finding"...
    view full answer...
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  • Trailer Wiring Recommendation for a 2015 Subaru XV Crosstrek
    For trailer wiring for your 2015 Subaru XV Crosstrek you would want the Tow Ready Harness part # 118467. This will plug in the port at the rear of your vehicle and would not require running a power wire up to the vehicle battery like the "powered" units do. A powered unit wiring harness means that it runs a wire up to the battery of the vehicle so that all of the amperage drawn for the trailer taillights comes from the battery and not the vehicle wiring. This type of harness is used on...
    view full answer...
  • Where Does a Trailer Wiring Harness Plug Into on a 2014 Subaru Outback
    Subaru can put the factory connector in different locations on the same year vehicle. The only reason I can think of for them to do this is that different assembly plants have the line set up slightly different and on some models in is on the passenger's side, others it is on the driver's side, and still others it is located up at the front of the vehicle behind the passenger's side kick panel. Also please note that none of the harnesses will fit if your 2014 Outback is a Sport model.
    view full answer...
  • How to Route Tekonsha Trailer Wiring Harness for Mounting on 2019 Subaru Outback Wagon
    The Tekonsha T-One Vehicle Wiring Harness # 118467 is actually designed so that the harness wiring and connector just gets stored inside the rear cargo area when it's not in use. Then when it's time to hook up to a trailer you will just pull the 4-Way out and close the hatch door on the wiring (this will not damage the wiring in any way). I know this sounds kind of weird but this is very common and in a lot of ways better than keeping it mounted to the hitch or bumper, as it keeps the...
    view full answer...
  • Can Tow Ready Trailer Wiring Harness be Used on a 2013 Subaru Outback with a Backup Camera
    The only exclusion for trailer wiring harness # 118467 is that it will not fit Sport models of the 2013 Subaru Outback Wagon. Installation of the harness should not affect the operation of the camera nor should the camera have any effect on the wiring harness. All 2013 Subaru Outbacks will have the factory connection point. Sometimes, though, Subaru likes to move it around so it may not be in the exact spot the harness instructions indicate. If it is not then other places to look or forward...
    view full answer...
  • Plug and Play Trailer Wiring Harness for a 2013 Subaru Outback 2.5 Premium
    It sounds like the shop installed a hardwire harness with a powered converter that would require a direct connection to the vehicle battery. Harness # 118467 does not require a connection to the battery because the power wire is part of the factory wiring this harness plugs into. The wire you are talking about under the car should have been secured with loom clamps, or even zip ties. Perhaps this shop needs to take a look at the FAQ article I wrote which I have linked to the right on different...
    view full answer...
  • T-1 Connector from 2006 Subaru Forester Not Compatible with 2010 Model
    The T-1 Wiring Harness you currently have, part # 118461 is for the 1998-2008 model years only. Unfortunately, Subaru changed the connector that the T-1 plugs into beginning with the 2009 model year. For your 2010 Forester, you would need part # 118467.
    view full answer...
  • Location of Factory Plug on 2018 Subaru Outback Wagon to Install Trailer Wiring Harness
    The Tekonsha T-One Vehicle Wiring Harness # 118467 referenced in your question (great choice) will install by plugging into a white factory plug that is located in the rear cargo area around the spare tire compartment (see attached image). You will need to remove some interior paneling to access the harness. I have attached an installation video on the 2018 Outback Wagon that you can also use for reference.
    view full answer...
    Image 1 for
  • Recommended Trailer Wiring Harness for 2020 Subaru Outback Wagon
    For your 2020 Subaru Outback Wagon I highly recommend the Tekonsha T-One Wiring Harness # 118467. This custom harness will plug right into an existing port in the vehicle's rear cargo area, either behind the driver's side trim panel or in the spare tire compartment. This is a simple "plug-and-play" install and the Tekonsha converter boxes tend to hold up much better over time than those from other manufacturers. This will provide you with a 4-Way connector to power the trailer's basic...
    view full answer...
  • How To Route The Trailer Connector To The Hitch on a 2019 Subaru Outback Wagon?
    The hardest part about the installation of the Tekonsha T-One # 118467 for your 2019 Subaru Outback Wagon is finding the plug to plug the harness into. Once you've located the plug on the driver's side of the vehicle in the rear cargo area, you can route the wiring along wheel well and under the cargo area panels for storage. This wiring harness is designed to stay inside the vehicle when not in use, so you'll want to store it inside the spare tire carrier compartment when it's not in use;...
    view full answer...
    Image 1 for
  • Recommended Trailer Wiring Harness for 2018 Subaru Outback Wagon
    I recommend the Tekonsha T-One Vehicle Wiring Harness # 118467 for your 2018 Subaru Outback Wagon (as long as it's not the Sport model) because of its superior reliability and converter box mounting design that simply leads to a longer lifespan than the alternative option. This custom harness will plug right into a factory port located behind the driver side trim panel on your vehicle (see attached image) to provide you with a 4-Way connector to connect with and power the trailer's signal...
    view full answer...
    Image 1 for
  • Where to Find Plug for Installing Trailer Wiring on a 2016 Subaru Outback Wagon
    To see exactly where the port is for the install of the Tow Ready Harness part # 118467 check out the install video I attached. It sounds like you have found the correct area by your mention of the blue wire that should be holding the harness to the body of the vehicle. We have heard from customers with similar Outbacks that this harness is still hard to find even with the videos and install instructions as guides. We had one customer say they had to use a mirror and flashlight to help...
    view full answer...
    Image 1 for
  • Trailer Wiring Harness Location for 2015 Subaru XV Crosstrek
    The Tow Ready Trailer Wiring Harness part # 118467 that you referenced has been confirmed as a fit for the Hybrid models of the Subaru XV Crosstrek so it would work well for you. I attached a picture of the trim panel that needs to be removed to access the harness on your vehicle to install the trailer wiring.
    view full answer...
    Image 1 for
  • Trailer Wiring Recommendation for 2017 Subaru Outback Wagon
    In terms of keeping trailer wiring protected there is no better way to accomplish this than how the Tekonsha wiring harness part # 118467 is designed to be used. The 4-way is stored on the interior when not in use which protects it from road debris and developing corrosion from weather and then when needed pulls out of the hatch and the door is shut on it. The thick rubber door seal protects the wiring.
    view full answer...
  • Trailer Wiring Harness Recommendation for a 2016 Subaru Outback Wagon
    The Tow Ready wiring harness part # 118467 is a confirmed fit for your 2016 Subaru Outback Limited and would work well. I attached an install video that shows it being installed in a 2016 Outback just like yours.
    view full answer...
  • Recommended Trailer Wiring Harness for 2019 Subaru Crosstrek
    For your 2019 Subaru Crosstrek I highly recommend the Tekonsha T-One Vehicle Wiring Harness # 118467, which will plug right into the factory port that's either located behind the driver's-side trim panel or in the spare tire compartment in the rear cargo area. I like the Tekonsha harnesses because they use a superior converter box that's known for its durability and long lifespan. This will provide you with a fully-functional 4-Way connector to power the basic signal lights on your trailer....
    view full answer...
    It sounds like the converter box is not stopping the power coming from the vehicle to the trailer. I suggest checking your trailer wiring on any of the trailers you have connected wiring to before you pull them again. Bad trailer wiring is typically what will cause the malfunction. A wiring problem on one of the trailers has likely caused the converter box to short out. The converter box did what it was supposed to do by preventing back feed to the vehicle wiring. The short has allowed...
    view full answer...
  • Wiring for 2018 Subaru Outback Wagon with Rear Bumper Sensors
    To install the T-One Vehicle Wiring Harness # 118467 in your 2018 Subaru Outback Wagon with backup sensors there is a certain way you are going to need to plug it in (please see accompanying photo) but apart from that, there is nothing special you will need to do. The harness in the Outback can be tricky to find, so I do recommend watching the linked video of this harness being installed on a '18 Outback Wagon.
    view full answer...
    Image 1 for
  • Trailer Wiring Harness Recommendation for 2017 Subaru Crosstrek
    For your 2017 Subaru Crosstrek the wiring harness I would recommend is the part # 118467 which is a confirmed fit and because the Tekonsha brand of wiring harnesses has shown to be the most reliable of all of the kits we offer. It may not seem like it, but storing the trailer wiring on the interior of the vehicle is actually the preferred way. It keeps the connector dry so corrosion doesn't develop and you don't have to worry about debris on the highway damaging it.
    view full answer...
  • Troubleshooting Trailer Wiring Where It Stops Working When Headlights Are Off
    There's a significantly different amount of amperage draw on vehicle's electrical system when the headlights are on vs. when they are off. When we see trailer wiring issues where the headlights being on or off is the variable that causes the issue the problem is always that the trailer wiring ground just isn't sufficient and improving that fixes the problem. Make sure it's connected securely to a clean portion of the frame.
    view full answer...
  • Where Does Trailer Wiring Connect to 2014 Subaru Outback Wagon
    I attached an install video for the Tekonsha trailer wiring harness part # 118467 on a 2014 Subaru Outback Wagon that will show you exactly where it connects to the vehicle. Basically you have to take apart the rear interior panels in the cargo area of the vehicle to find the connector.
    view full answer...

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