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

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

Item # 118449
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Retail:$74.23
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Custom Fit Vehicle Wiring

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Custom Fit Vehicle Wiring 118449 - 4 Flat - Tekonsha
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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. Powered ModuLite reduces strain on wiring system. Call 800-298-1624 to order Tekonsha custom fit vehicle wiring part number 118449 or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price 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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  • Reviews (35174)
  • Q & A (369)
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  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - 118449

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

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. Powered ModuLite reduces strain on wiring system.


Features:

  • 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 or splicing of wires
  • Includes ModuLite to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading vehicle's electrical system
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

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


Installation on 2014 and 2015 Toyota Highlander

2014-15 Toyota Highlander connection points

This custom-fit T-One connector plugs into your vehicle's wiring harness. The connection points for the 4-way tow harness and the ModuLite (converter) are located underneath the spare tire compartment. Once you've plugged in the ModuLite, locate the "towing fuse" position in your fuse box and insert the included 10-amp fuse.


Installation on 2013 and Earlier Toyota Highlander

This custom-fit T-One connector plugs into your vehicle's wiring harness. The connection point for the 4-way tow harness is located behind the driver's-side interior trim panel in your rear cargo area. The ModuLite plugs into the factory wiring harness beneath your dash, on the driver's side. Once you've plugged in the ModuLite, locate the "towing fuse" position in your fuse box and insert the included 10-amp fuse.


Once installation is complete, the 4-way flat connector will be stowed in an out-of-the-way location within your cargo area.


ModuLite Powered 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.


With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.



118449 Tow Ready T-1 T-Connector - 4 Wire - Modu-Lite

Installation Details 118449 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118449

Average Customer Rating:  4.8 out of 5 stars   (35141 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. Powered ModuLite reduces strain on wiring system.

- 118449
by:

Great hitch!! Relatively easy to install and at a great savings over what you would pay at the dealership. I just pull a utility trailer and don't need electric brakes. I bought the electrical kit that allowed me to connect to the factory wiring with no cutting/splicing. I saw a Youtube video in which a fellow used a floor jack with the hitch connected with Vicegrip pliers and used that example to install by myself. Completely satisfied with the Draw-Tite hitch and etrailer.com


Comments
Everything working fine, still completely satisfied with this purchase.
Terry C - 08/18/2020


- 118449
by:

This is the third time I have purchased a trailer hitch from etrailer in the last 8 years. Great experience each time! Very good instructions included. Plus excellent videos on YouTube! Almost forgot, the plug in light wiring kits are simple to install and work great!



- 118449
by:

Did the job. No complaints. Everything in order and all necessary cable ties etc. I was connecting to a 7 point connector and therefore fed it through the body (already a hole for cables that can be used) under the vehicle as opposed to only hanging through the closed back hatch per one of the videos.


Comments
Nothing changed, still happy with the product a year later
Evan - 06/14/2021


- 118449
by:

This is the best product with the best installation guide I have ever installed. Every step is exactly how it is described. Well done Etrailer !


Comments
Sold the car. New owner will be very pleased
John - 06/09/2021


- 118449
by:
2017 Toyota Highlander

This was a very complete kit. Excellent instructions. I had to find a video on the internet on exactly how to remove the toolkit tray from the back of my 2017 Highlander. Once I saw someone pop off those 7 snaps and yank out that small tray on the driver's side, it was easy after that.



- 118449
by:

Very very simple install! I ran the trailer wire through the rubber Grommet so that it would be on the exterior underneath the vehicle. Then used some zip ties to secure to lower valance on the vehicle gives it a finished look.



- 118449
by:

Everything was installed as instructed, and we didn't run into any surprises, although the video and other illustrations will instruct you to hang the plug out the back door, i dint like that cheesy look so i ran the wire through a drain grommet that is already in the floor on the left side and mounted the 4 prong flat connector to a Mounting Bracket that i attached close to the receiver area for a cleaner more professional look (note the pics was taken prior to the bracket installation) i will update pics later, Item # 18144,



- 118449
by:
2018 Toyota Highlander

Phone assistance was exemplary as Ashley knew the equipment I needed to order and made an important suggestion. The kit arrived promptly and it had all necessary parts to install a 7 way brake connector to my 2018 Highlander. There was even a 28 minute how to video that provided step by step instructions. Great equipment, great service, great support makes etrailer my go to company for rv equipment.



- 118449
by:
2019 Toyota Highlander

Install went just as shown on the helpful video. The 10 amp fuse is already installed in the conversion module. e-trailer products and instructions are the real deal. This was the 4th product purchased (2 hitches; 1 set of roof rails prior to this). All have performed as promised.



- 118449
by:
2016 Toyota Highlander

The whole project went together on on my 2016 Toyota Highlander Limited in about 1.5 hours. It was very easy and came out looking great! I used the install video, which was very easy to follow and complete. I appreciated the free shipping and being able to install myself (with the help of my wife). Saved me a TON of money!



- 118449
by:
Toyota Highlander

Installation could not have been easier. The video on the e-trailer website for installation in the Highlander was a great help. Even though the vehicle came with the factory tow-prep package that includes a wiring harness, the T-One harness or equivalent is still required. Go figure. As an earlier reviewer noted, with the third-row seat it is necessary to remove the driver-side flip-up third-row cover (the piece just ahead of the tool kit cover). Easy enough to do by simply laying down the rear seat and prying up the rear edge of the cover to loosen the clips. See the attached photos, the first with the cover in place, and the second with it removed. It is necessary to remove this cover to permit removal of the left-side tray to gain access to the existing harness and plug. One other piece of advice is to thoroughly clean the surface to which the box will be mounted to assure a strong bond with the included two-sided tape. I used alcohol-soaked gauze. The price through e-trailer was the best I could find anywhere, and the service was second-to-none!



- 118449
by:
2019 Toyota Highlander

Product was great, instruction sent with it could be used, but I went on line and watched the video for the hitch & the light wiring and it was really great. Made it so easy that me & my wife did it and she is 67 and I am 71.



- 118449
by:
2016 Toyota Highlander

To say that the instructions were perfect and the installation was 5 times easier than I thought would still be an understatement. Very easy installation in a 2016 Highlander; anyone with basic skills can do this with professional results. 30 minutes job if you are slow like me. The only tools you will need are a 10mm wrench or socket, and an auto trim removal tool for popping up the carpet from the rear tray. No wires to cut, or splicing; very clean plugs to connect with built-in plugs already in Highlander. Too easy!



- 118449
by:
2011 Toyota Highlander

Great product. Easy to install (2011 Highlander SE). Fit perfectly. I ran my wiring thru the rubber grommet under the left tray and then under the chassis as described in another customer's review (my pic is prior to sealing the cut with silicone). The product's instruction sheet was good but pics a bit hard to see clearly. etrailer.com's videos really helped. Disclaimer: the wire routing described is not spec'd by the mfr. in the instructions. It's only an option for you if you choose.



- 118449
by:
2011 Toyota Highlander

Installed on a 2011 Toyota Highlander Base Model Although the instructions missed some parts on my 3rd row seating model, they were very readable and the installation went quickly. I'll only point out a few things I saw that strayed from the written word, and something that I "modified" for your consideration. I hope this is not considered something that would affect safety/warranty. Under the dash, the converter box has sticky tape. I couldn't find anything that this would stick to (it just came off once stuck), so I just zip tied it in place. In the back, there are no instructions on how to remove the "folding cover" for the third row seat. I ended up just pulling it out, which probably wasn't the best. I got lucky, and none of the blind fasteners broke off. Once this folding cover is removed, there's a sticky "tab" that goes over the box over the trailer lighting connector. It's straight forward enough, but not explicitly mentioned. I did not like the idea of the 4 way flat sticking out the back door. Maybe it would be okay for occasional use, but I'd rather have it under the vehicle. Plus, I use a lighted hitch cover that would not work well if the wire went out the door. Under the tray that is removed to access the trailer connector, there is a large drain/access plug in the steel floor. I removed this plug, then used a sharp utility knife to X out the center of the rubber plug. I only cut enough out to allow the vehicle connector (not the trailer connector, which is larger) to be pushed through; up from the bottom. I replaced the plug in the vehicle, then routed the wires along a factory harness to the connector. I filled the rubber plug with silicone to stop water and fumes from entering the cabin, then replaced all the interior bins and covers. Under the car, the wiring set is just long enough to reach the hitch. Here I have it plugged into a lighted hitch cover. I keep a 4 foot 4 way flat extension in the vehicle with the draw bar for when I'm towing. Overall, I'm very satisfied with etrailer.com and their products. Not everything goes to plan, but the products themselves are very good. The price of this DIY job was 1/3 of the cost that the dealer wanted, and I know it was done right. I will buy from them again. (In the pic, the hitch wiring lights up my hitch cover, which I didn't buy from etrailer.com, but had from a previous vehicle).



- 118449
by:
2017 Toyota Highlander

Great Product and Excellent support!!! The email sent to confirm the equipment was delivered has a specific page with additional links to installations, questions and answers, and videos showing how to install. This is a wonderful purchase experience!!!!



- 118449
by:

My trailer hitch and wiring harness arrived within two days. All needed parts were included. The videos online were excellent and all the parts lined up perfectly. Excellent recommendations on the website. The only suggestion that would have been helpful, as a non- mechanic layperson, would have been a specific warning that the bolts/ screws on my vehicle are metric. Fortunately the friend who helped me install it had a large metric socket set. The bolts to attach the hitch were SAE, so no problem there. Very pleased with your product, service, and website. Saved me $500.00 compared to dealership quote.


Comments
Harness was easy to install. The instructions were easy to follow and everything has worked nicely.
Darryl - 04/13/2020


- 118449
by:

2011 HL, bought OEM hitch and this wiring harness. Pre-wired under dash was just a direct plug-in. Not sure the double sided tape will hold. Getting the plastic tray out of back was a little difficult. Easy plug-in once I got it out. Decided to just leave the plug and wires in the storage bin but could not find a way to route it into the black storage bin without creating a larger hole. I used a Dremel and expanded one hole (see picture). Probably an easier way.



- 118449
by:
2017 Toyota Highlander

This went together easily in the 2017 Highlander. There was no 10 amp fuse provided as indicated and the Highlander fuse lid calls for a 30 amp fuse in the towing slot (?) although the Toyota wiring doesn’t seem heavy enough to warrant that kind of protection.



- 118449
by:
2015 Toyota Highlander

I just recently installed the kit, everything went together as the video described.This system is a do it yourself pleasure. Thanks For Your Support



- 118449
by:
2013 Toyota Highlander

Great standard shipping time was in stock and ordered Saturday received Tuesday. Installed Tuesday night in no time. The only issue is the install of rear Tow-Plug Adapter on Toyota 2013 Highlander Hybrid is different that the pictures in the instructions. In the Toyota 2013 Highlander Hybrid they (Toyota) moved the 12 volt battery into the back driver side compartment, still has the same connector (see picture)



- 118449
by:

This is the third frame hitch we have purchased from y'all in the last 5 years. - Always a good fit. - Always good instructions. - Always fair pricing. Thank you!!



- 118449
by:
2016 Toyota Highlander

Wiring harness was spot on in terms of length, connection type, ease of installation and installation instructions.



- 118449
by:

By far the most easy to install electrical harness I have ever used!


Comments
Works every time I use it!
Terry W - 02/04/2021


- 118449
by:
2019 Toyota Highlander

Installed on 2019 Highlander AWD XLE. Installation was very simple. Watch the install video as it will walk you through simple installation. I chose to route the trailer plug through the plugged hole located driver side rear floor deck.


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Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring

  • How to Determine if a 2017 Toyota Highlander has a Factory Tow Package
    To determine if a 2017 Toyota HIghlander has a factory towing harness, start by opening up the rear hatch. Then, lift up on the rear compartment panel and pull it out. Remove the two driver-side panels by pulling up on them. There, you may see a factory 4-pole. If you do, then you know for sure you have the factory towing harness. If you do not, you may still have one that didn't come with the 4-pole connector so continue to the next steps. Pull up on the tabs connecting the floor covering...
    view full answer...
  • Does the Tekonsha T-One # 118449 Need to be Used for 2012 Toyota Highlander Without Front Converter
    I'm glad that you like the etrailer.com Trailer Hitch Receiver # E98858 and Curt Class III Ball Mount Kit # C45036 that you purchased for your 2012 Toyota Highlander. When it comes to the Curt T-Connector # 56042 that you purchased, you can verify whether your Highlander is equipped with the tow package by contacting your local Toyota dealer with your VIN but the picture you sent in indicates that you don't have the tow package for your Highlander. If you find that your Highlander...
    view full answer...
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  • Replacement 4-way Connector For 2018 Toyota Highlander With Aftermarket T-One Connector Installed
    Since the 4-way connector plugs into the factory wiring via a 4-pin connector and not into the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118449 you have installed on your 2018 Toyota Highlander, the Curt T-Connector Vehicle Wiring Harness # 56042 will work just fine as a replacement. I included videos of the products mentioned for you to take a look at.
    view full answer...
  • Trailer Wiring Recommendation for 2016 Acura RDX 2015 Toyota Highlander 2013 Ford Edge
    For your 2015 Toyota Highlander the best trailer wiring harness is the Tekonsha part # 118449 as it installs the easiest and has the most reliable converter box. For the 2016 Acura RDX you'd then want the part # 118569 and the 2013 Ford Edge # 118515. For the Ford Edge the etrailer hitch part # e98870 is the way to go. It has great towing capacities and also has a mostly hidden appearance as well.
    view full answer...
  • Does Tekonsha Trailer Wiring Kit # 118449 Fit 2017 Toyota Highlander Hybrid
    Yes, the Tekonsha trailer wiring kit part # 118449 that you referenced does fit the hybrid versions of the 2017 Toyota Highlander like you have.
    view full answer...
  • Will Full Size Spare Tire Fit Under 2019 Toyota Highlander With etrailer Hitch e98844
    So long as the full size spare tire on your 2019 Toyota Highlander does NOT have an aluminum rim, it will still fit after installing the etrailer Trailer Hitch Receiver # e98844. If your full-size spare does have an aluminum rim, you will need a different trailer hitch receiver in order to keep the spare under your Highlander, the Draw-Tite Max-E-Loader Trailer Hitch Receiver # 75896. Both options will fit hybrid models as well, and I have added links below to video installs of both...
    view full answer...
  • How to Determine if 2019 Toyota Highlander Has Factory Tow Package for Wiring Harness
    There are a couple ways you can determine whether or not your 2019 Toyota Highlander is equipped with the factory tow package. The first method consists of simply looking for the plug(s) that the appropriate trailer harness would connect to; either the Tekonsha T-One # 118449 if you don't have the tow package or the Curt T-Connector # 56042 if you do. With regards to wiring the tow package essentially provides the needed converter box, so it's not included/needed with the Curt harness....
    view full answer...
  • Brake Controller Recommendation for a 2013 Toyota Highlander
    You will need to start with a 4-way (if you do not have one). For that you would want the # 118449. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling...
    view full answer...
  • Brake Controller Wiring for a 2008 Toyota Highlander Sport
    You will actually need the T-One Vehicle Wiring Harness with 4 Pole Trailer Connector, item # 118449, for your vehicle and the, item # ETBC7, Brake Controller Installation Kit, along with the brake controller of your choice. I recommend going with a proportional controller, like Tekonsha Prodigy part # 90885. The following link below will take you to the recommended brake controllers for your Highlander. You will need to hard wire the additional brake, power and auxiliary functions that...
    view full answer...
  • How To Determine if the 2018 Toyota Highlander Has A Tow Package For Trailer Wiring
    I am happy to help you determine if your 2018 Toyota Highlander has a tow package or not. The easiest way is to visually inspect your vehicle on your own. If you take a look at the video for part # 118449 that I attached on a 2018 Toyota Highlander without a tow package he removes the back tray in the rear cargo area to find the plugs he needs to plug the wiring harness into. If you remove the cargo area tray and you have two plugs (one for a converter and one for the wiring harness) then...
    view full answer...
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  • Need Instructions to Install T-One Vehicle Wiring Harness # 118449 on 2015 Toyota Highlander
    The installation instructions can be a little bit confusing because they include instructions for the 2008 - 2013, as well as the 2014- current, Highlander. I have included a snapshot of the instructions that are specifically for your 2015 Toyota Highlander. For the 2015 model, the 10-pin connector will be located behind the rear interior trim panel. I have attached an installation video for you to check out. This is for part # C56217 which is Curt's version of the Tow Ready Custom...
    view full answer...
    Image 1 for
  • 2013 Toyota Limited Highlander 7-Way and Trailer Hitch Recommendation
    You will need to start with a 4-way (if you do not have one). For that you would want the # 118449. Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # ETBC7 instead of the # 37185 and a brake controller. This kit comes with everything needed to wire up the 7-way and install a brake controller. For a brake controller I would recommend the Prodigy P2 Brake...
    view full answer...
  • Trailer Wiring Harness Recommendation for a 2015 Toyota Highlander Limited
    For your 2015 Toyota Highlander the Tekonsha Trailer Wiring Harness part # 118449 is the kit we recommend because this brand has a reputation as being more reliable than Curt generally speaking. It isn't and etrailer.com brand harness either. We put our stickers on our products to help prevent other companies from stealing our pictures.
    view full answer...
  • Trailer Wiring Recommendation for 2017 Toyota Highlander
    The recommended trailer wiring harness for your 2017 Toyota Highlander is the Tekonsha part # 118449 which I attached an install video for. We like Tekonsha harnesses the best as they tend to be the most reliable. If you can find a grommeted hole in the rear cargo area of your vehicle you could route the 4-way through that, but you should note that it is actually preferred to keep the trailer wiring stored on the interior of the vehicle. Having it stored there keeps it protected from...
    view full answer...
  • Best Trailer Wiring Recommendation for a 2015 Toyota Highlander
    Both the Tow Ready Wiring Harness part # 118449 and Curt Harness part # C56217 that you referenced have been confirmed to fit your 2015 Toyota Highlander and would work well for you. But we tend to have more luck with the Tow Ready harnesses. They tend to last a bit longer than the Curts so I would recommend the # 118449 for you. I attached an install video for you to check out as well.
    view full answer...
  • 7-Way Wiring and Brake Controller Installation in 2016 Toyota Highlander
    There is no direct plug-in 7-way for your 2016 Toyota Highlander but it is possible to add one by first installing a 4-pole harness. You can then add our 7-way install kit # ETBC7 which includes all components needed to have a fully-functioning 7-way trailer hookup on the Highlander. The linked page show you all 4-pole kits for the different versions of the Highlander. For example, if you do not have a factory tow package with a converter under the dash you can use aftermarket kit #...
    view full answer...
  • Recommended 7-Way Connector for 2019 Toyota Highlander for Trailer Lights
    We have everything you need to install a 7-Way connector on your 2019 Toyota Highlander and the process won't be difficult at all! To start you will need to add a 4-Way trailer harness. For this I highly recommend the Tekonsha T-One # 118449, which is custom-designed to plug right into an existing port beneath the spare tire compartment in the Highlander's rear cargo area. This is a completely plug-and-play install and it will provide you with a 4-Way connector that can power a trailer's...
    view full answer...
  • Adding 7-Way on 2008 Toyota Highlander
    To wire your 2008 Toyota Highlander with a 7-way and 4 pole connector, you'd first need a functional 4-pole trailer connector. Sounds like your Highlander doesn't already have one, so you can install one using part # 118449. With the 4-pole in place, you'll need a brake controller to activate the trailer brakes. I recommend the Tekonsha Prodigy P2, part # 90885. The P2 is very highly rated by our customers and is extremely easy to use. You'll also use our brake controller installation kit,...
    view full answer...
  • 2015 Toyota Highlander XLE Trailer Wiring Harness Recommendation
    The Curt Harness part # 56042 that you referenced is designed as a replacement harness for vehicles like your 2015 Toyota Highlander that came with a factory 4-way. Although Toyota said you have the factory tow package it sounds like you are missing the necessary under dash converter. This is a Toyota part that they might be able to set you up with, but we don't carry it. The best solution I can recommend for you would be to get the part # C56217.
    view full answer...
  • Adding a Trailer Wiring Harness to a 2012 Toyota Highlander without Factory Tow Package
    Yes, the converter box is needed on the 2012 Toyota Highlander in order for the connector at the back to have power. But it is not available by itself. But the cost will still be about the same because the 4-Way part of the system, such as # 118449, is the least expensive to make so it only would add a couple of bucks. There is also a 10 amp fuse that will need to be inserted which is explained in the instructions I have linked for you. I have also linked a video showing an example installation...
    view full answer...
  • Function of Under Dash Converter in Trailer Wiring Hanress # 118449 for a 2008 Toyota Highlander
    On the 2008 Toyota Highlander, the component that connects under the dash is the converter box. This is used to convert the 3 wire vehicle signals into 2 wire signals used by trailers by combining the directional and brake light signals into a single circuit to match the wiring set-up of the trailer. The signals come into the converter which converts then for trailer use and then it sends the converted signals back through the system to the rear of the vehicle where the second harness...
    view full answer...
  • Is a 7-Way Connector Required on a Vehicle to Tow a Trailer with a 7-Way Connector
    You can use a 4-Way to 7-Way adapter, such as # 37185 but if you only connect the white ground wire then only the lighting functions will work on the trailer. If the trailer does need to have the 12 volt and electric brake circuits functional then it would be best to install a 7-Way using the # ETBC7 kit. If the vehicle does not already have a 4-Way trailer connector you would need to install one first in order to install the ETBC7. And if a brake controller is needed I recommend...
    view full answer...
  • Wiring Harness for 2008 Toyota Highlander Pre-wired
    Yes, the # 118449 T-One wiring harness is the correct custom-fit wiring harness for your Highlander. If you have a trailer with electric brakes, you will need a brake controller to activate them and a 7-way plug for the back of your Highlander. We have a great selection of brake controllers. I suggest the Prodigy P3 # 90195, which is simple to install and operate, and offers a smooth stop. You will also need # ETBC7, which turns the 4-pole plug into a 7-pole plug and also has the wiring...
    view full answer...
  • Recommended Trailer Wiring For 2017 Toyota Highlander To Tow Camper With 7-Way Connector
    If you have the factory tow package and have a converter under the dash of your 2017 Highlander the wiring harness I recommend is the Curt T-Connector Vehicle Wiring Harness, part # 56042. This simply plugs into the factory tow package wiring harness located behind the driver side trim panel in the rear cargo area. If you do not have a toe package and converter, I recommend the T-One Vehicle Wiring Harness, part # 118449. The connection points for this are located under the spare tire...
    view full answer...
    Image 1 for Image 2 for
  • Can Brake Controller Install in 2018 Toyota Highlander
    The newest Toyota Highlander we've installed a brake controller in is a 2014 model. I attached the install video to this page to show you the processs. The 2014 and 2018 Highlanders are the same generation though so what you see in the install video would be the same as on your vehicle. Tekonsha (the maker of our nicer brake controllers) has informed us that they have successfully installed brake controllers in your vehicle so I would not anticipate a problem. That said, Toyota is the...
    view full answer...
  • Trailer Wiring Harness for 2015 Toyota Highlander
    The Curt T-Connector harness, # C56217 and the Tekonsha T-One Connector, # 118449 are designed for a Toyota Highlander without a factory tow package. The Curt T-Connector # 56042 is designed for a Highlander that has the factory tow package installed. If your Highlander came with a trailer hitch receiver installed, your vehicle probably has the tow package. If you are still not for certain you can contact your local Toyota dealer and have them run the VIN to see if your vehicle came...
    view full answer...
  • How to Determine if a 2018 Toyota Highlander has a Factory Tow Package
    You can have a Toyota dealer run the VIN number to determine how your 2018 Toyota Highlander is equipped. As far as trailer wiring you can check under the dash for any sort of wiring converter. It may or may not be labeled. Or you can find where a wiring harness plugs into the vehicle at the back and then use a circuit tester such as # 40376 to test that connector. Have someone sit in the vehicle and operate the lighting functions while you test the connector. If there is power on that...
    view full answer...

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