1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 7 Blade
  6. Powered Converter
Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector

Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector

Item # 22119
lowest price pledge
Retail:$257.73
Our Price: $145.69
You Save: $112.04
Custom Fit Vehicle Wiring

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

This item qualifies for Free Shipping
Shipping Weight: 4 lbs
Quantity: 
In Stock
Tekonsha Custom Fit Vehicle Wiring - 22119
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Replace the 7-way, RV-style trailer connector on your vehicle with this T-One harness. ModuLite reduces strain on wiring system. Brake controller adapter attaches to included body harness and lets you easily plug in your electric brake controller. Call 800-298-1624 to order Tekonsha custom fit vehicle wiring part number 22119 or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (34951)
  • Q & A (40)
  • Photos
  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - 22119

  • Custom Fit
  • Trailer Hitch Wiring
  • 7 Blade
  • Tekonsha
  • Powered Converter

Replace the 7-way, RV-style trailer connector on your vehicle with this T-One harness. ModuLite reduces strain on wiring system. Brake controller adapter attaches to included body harness and lets you easily plug in your electric brake controller.


Features:

  • Towing prep kit replaces damaged factory 7-way, blade-style trailer connector at the back of your vehicle
    • Enables your vehicle to power your trailer's signal lights
    • Compatible with 4-pole, 5-pole, and 6-pole adapters (sold separately)
  • T-One connects quickly and easily
    • Locate connection point in rear cargo area
    • Splice blue wire into vehicle wiring
    • Run body harness up to car battery
  • 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
  • Wiring adapter eases installation of your electric brake controller
    • Pigtail end connects to included body harness and vehicle battery
    • Other end plugs into the back of your electric brake controller
      • Compatible proportional brake controllers: Tekonsha P2 (90885), Tekonsha P3 (90195) and Tekonsha Primus IQ (TK90160)


Specs:

  • Maximum amperage:
    • Stop/turn lights: 4.2 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


Installation of Tekonsha T-One Connector

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located inside your rear cargo area. You will have to remove access panels, storage trays, and some interior paneling to access this harness. Once you've plugged in the T-connector, run the body harness up to your car battery, and route the blue wire up to the grommet that leads into the cargo door. Then connect all of the wires per the included instructions.


Once installation is complete, the 7-way connector will be stowed beneath your vehicle. 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 7-pole connector itself - to help prevent corrosion.


ModuLite Powered Tail Light Converter

A ModuLite power module is built into this T-One connector. Because most trailers run on a 2-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's 3-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.


Installation of Tekonsha Brake Controller Adapter

This adapter hardwires to the body harness that is included in this kit. Just connect the black wire from the brake controller adapter to your car battery, and connect the white wire to a suitable ground. The remaining wires can then be easily spliced into the body harness with the included butt connectors.


This adapter is designed to plug directly into your electric brake controller. Because the harness does not hardware to your controller, installation is not permanent. You can unplug and remove your brake controller at any time and securely stow it away.



22119 Tekonsha Replacement Harness with Brake Control Adapter for Factory Tow Package - 7 Pole - Modu-Lite

Installation Details 22119 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector - 22119

Average Customer Rating:  4.8 out of 5 stars   (34951 Customer Reviews)

Replace the 7-way, RV-style trailer connector on your vehicle with this T-One harness. ModuLite reduces strain on wiring system. Brake controller adapter attaches to included body harness and lets you easily plug in your electric brake controller.

- 22119
by:
2014 Toyota Highlander

This was supposed to be a custom fit for a 2014 Toyota Highlander, however I had to make a number of customizations to make it fit. For example, the length of wires from the 10-pin connector to the grommet was too short and required inserting a 12-18 inch extension (about 4 or 5 wires plus 8 to 10 heat shrink butt connections). The wires from the grommet to the 7-blade plug connection were also too short and required extending all 7 wires about 12 inches (additional 14 heat shrink butt connections required plus a lot of electrical tape to protect it). The grommet was kind of funky - seems like it was installed upside down. I used the old grommet and cut it to allow wires to run through it. The old grommet mounts on the inside versus the outside mount that came with the kit. The length of wire running from the converter box to the battery and brake controller was more than enough. Directions were more of any overview and I had to search for Toyota Service Manual instructions to get specifics for removing trim panels, locating the 10-pin towing connector, and running wires through the firewall (follow the hood release cable that runs between the frame and fender liner). Took longer than expected, but got it to work.



- 22119
by:

I have received the items I ordered from etrailer and expect to have them installed and used for the first time on 10/21. I can review them after 10/21. I was impressed with how fast my order arrived.



- 22119
by:



- 22119
by:

This is a great product. etrailer did the installation. It turned out great. I definitely recommend the product.



- 22119
by:



- 22119
by:

I looked at my order status and it said that it wouldn’t be delivered for 2 to 3 months. I called and they fixed my order and found similar products For the same price that could ship immediately. They were great on the phone and my order arrived a day earlier than I was told. Excellent phone customer service and the product arrived undamaged. Thank you very much!



- 22119
by:
2016 Toyota Highlander

arrived this morning! everything looks to be here. Thanks for shipping so quickly! will let you know how installation goes.



- 22119
by:

Works



- 118258
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


Product quality very high, delivery very fast, shipping container (cardboard box) was not strong enough to support handling/shipment, box bottom was ruptured with hitch assembly hanging out, box should be supported stronger, no parts missing, hitch was scratched up somebut, nothing that a little black paint didn't fix. I installed the wiring harness connections and fuse box on the external side of the vehicle to eliminate having to take apart the internal sheet metal panels and providing easy access to the fuse in the event of fuse failure, this eliminates the necessity of interior Panel removal to change a fuse. Easy installation, product has great great design features ,great customer service with prompt delivery. Just ordered the bracket (#18140) to secure the 4 prong plug to the hitch neatly and secure to eliminate the loose plug. (not shown in photos (Bracket in transit),


Comments
Great, works like a charm.
Anthony J - 09/27/2020


- 118252
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


Just installed Draw Tight hitch, wire assembly along with the brackets for a nice look. Everything went smooth with installation and it has a nice clean look as the hitch is well hidden. This is going to work for our bike rack and the cargo carrier I am now going to by. Now I can also get a small utility trailer to pull and haul stuff. I strongly recommend etrailer for all your needs as they communicated with me the whole way through and readily replaced a lock unit that somehow came without the key. Customer service is top notch.


Comments
Absolutely Fine!
Scott N - 04/26/2020


- 118265
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


I purchased this for my 2013 Honda Pilot EX-L. I have not used the wiring harness yet, but the installation was extremely easy and quick. The instructions were very straightforward, and I was able to install everything within 30 minutes. Everything you need is inside the package except some bolts/nuts to mount the connector. I decided to cut out a hole and drill some holes for bolts. I opted for some black ones to match the colors. I'm extremely happy with this product and etrailer's fast and reliable service.



- 118264
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


This is a perfectly tailored product for the do-it-yourselfer who with a little help adds a nice hitch to his vehicle. Getting an older vehicle's OEM installed weld nuts clean takes most of the time followed by installing the two washers and nuts in the fascia area. That part needs patience as the work area is limited. The Curt LED 4-Way Flat Connector (Vehicle End) Tester makes it very simple to verify the Tow Package - 4-Pole Flat Trailer Connector that is a snap to install to the vehicles pre-existing harness. One point to pay attention to in the instructional video is when pulling the square washer and bolt through the channel. They must slide in single file as shown. If you try to pull with the bolt through the washer it will get stuck and you will need to fish it out. So bottom line. Great product. Great support. Steve Stewart


Comments
Everything from the hitch to the wiring still works perfectly. Very pleased with the results
Stephen - 05/07/2020


- 118248
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


Wish I bought etralier's tow harness earlier. Easy installation. Toyota dealership sold me the wrong one and of course waited too long to return. But use some of the parts from that harness on the one from etrailer(see pics). Would order again from etrailer. Thank you



- 118269
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


Plug & play for 2020 Kia Sorento. Dinged a star because the trailer connector does not fit the extra bracket well. It does not appear to have been designed for a bracket mount. I had to force fit and secure in place with a zip tie.



- 118266
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


Good product and great service from etrailer! !!!Important note: 2012 Nissan Xterra (depending on what factory it was built) has the 12v power and brake wire REVERSED on the factory installed harness. Meaning when you plug in your trailer, there will be constant power to the brakes on no power to the charge line. If this happens to you like it did to me, you need a tester and a couple butt connectors to make the switch at the 7 pin connector. Also note, these plugs use the trailer for the ground so you're tester wont read if the trailer is not plugged in and you have to hold one of the tester ends to metal on the trailer.


Comments
Thank you for your review. This is a common issue on the Nissans. I have attached a very helpful article that explains the issue and how to fix it.
-- Etrailer Expert Heather A - 05/12/2021


- 118265
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


Needed a harness for my 2015 Honda Pilot LX and didn’t want to pay a king’s ransom for dealer parts and install. Ordered from etrailer and got a deal. Came with everything I needed and also had excellent, easy to understand instructions. Works perfectly.


Comments
This harness has worked like a charm. No problems at all.
Randy B - 06/01/2020


- 118252
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


FITS the new 2020 HIGHLANDER! There is a new connector with the 2020 Highlander redesign under the driver side rear bumper. This cable plugs directly into the Highlander connector. See photo. There is no need to route or run wires for the trailer wiring. You will also need a converter to provide the correct signals to this cable. I recommend using the Toyota Plug-n-play converter part number: PT725-48200. It’s around $60 online. Be aware it is installed behind a panel located next to the driver’s side second row seat. Toyota completely changed the vehicle wiring for the 2020 model year. I also recommend the CURT C99FR hitch. Fits perfectly, easy to install and hides behind the bumper.



- 118248
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


Instructions provided with adapter are good. My 04 Highlander without tow package had the connector under rear, driver-side cargo tray. Lift the cargo floor, remove the tire-change-tool tray, remove the two plastic nuts on the bottom of the left-side tub, and lift it out. Also under that storage tub is an unused 6mm threaded hole in the body to be used for the ground. Put a fuse in the correct spot of engine compartment fuse block (mine was empty) and good to go. See underside of fuse block lid for tow adapter fuse placement.


Comments
Used 20 times this summer with no issues. I would buy again.
Michael A - 01/09/2021


- 118266
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


The hitch is great, but the screws for the electrical connector have rusted.


Comments
It’s still working. The screws are still rusted, though.
Tim M - 07/18/2020


- 118266
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


This kit worked great. It took about an hour to install on my 2005 Xterra. The process was just like the video on etrailer.com. The only difference was that I mounted the bracket directly to my bumper instead of the hitch.


Comments
Working great. Im glad I purchased the 7-pin version for this car
Keith - 07/16/2020


- 118259
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


Plug and play! This trailer power cable plugged directly into my factory Cadillac SRX wire harness. No wire cutting and splicing, absolutely the easiest installation I could imagine. Highly recommended for anyone who can use it. See photos showing the purchased product and where it plugged into the factory wiring harness.



- 118253
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


Jesse at eTrailer help me with configuring my 2009 Honda Pilot to be able to pull legal loads. I had previously installed their 4 pin connector but I want to be able to use trailers with brakes to full extent. I added a Redarc brake controller in a convenient location. Easy to replace the current harness with the 7 way connector. A little more work to pull panels to locate the Redarc control head exactly where i wanted it, but no biggie. As always, great customer service and a great product. Thanks Jesse and all at eTrailer.



- 118249
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


If it were not for the Great Hitch I bought from you that I installed at a DIY garage I would be Homeless during this PANDEMIC, your Hitch saved me from all kinds of problems Your Product is Great!



- 118269
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


This is my second hitch I purchased and installed. Both were great and the instructions for installing were spot on. My only complaint is that it is disappointing that the hitches do not have a nice integrated trailer light hook up. It’s a crappy bolt on or zip strip unsturdy light hook up. It doesn’t look nice after installed. And are very flimsy.



- 118269
by:

Review from a similar T-One in Custom Fit Vehicle Wiring


I was very happy with etrailer.com The items were delivered in 3 days. The wire harness was an easy plug and play. And mounted nicely to the hitch wit items the short mounting bracket and 4-Pole mounting bracket.


36
3640
Show More Reviews

Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring

  • 7-Way Trailer Wiring Connector Recommendation for 2018 Toyota Highlander
    To install a 7-way trailer wiring connector on your 2018 Toyota Highlander I recommend the Tekonsha kit part # 22119 which comes with everything needed to install the 7-way and make it fully functional. Only thing else you'll want is a mounting bracket to secure the connector and for that you'd want the part # PK12711U.
    view full answer...
    Image 1 for
  • Installation of Tekonsha OEM Replacement Trailer Wiring Harness on 2019 Toyota Highlander
    The Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22119 has an 18 gauge blue wire as you stated. This wire is run to the reverse light circuit at your tail lights. It should be a red wire connecting to a harness that is directly connected to a bulb for that reverse light function.
    view full answer...
  • 2016 Toyota Highlander Hybrid 7-Way Wiring with Rear Battery
    Yes, you would just tie into the battery at the rear of your 2016 Toyota Highlander Hybrid with the 7-Way Wiring Harness # 22119 for the different circuits that need the constant 12V power. The fuses are required for the installation to protect the wiring from overheating which could cause a fire. For mounting the 7-Way on the back of your Highlander I recommend the Mounting Brackets # 18138 and # C57202. These will allow you to mount the 7-way on the receiver hitch without having to...
    view full answer...
  • How To Add a 7-Way Trailer Connector To A 2019 Toyota Highlander
    The Tekonsha OEM Replacement Vehicle Wiring Harness part # 22119 is the correct option to add a 7-way trailer connector to a 2019 Toyota Highlander without tow package. If you don't already have a compatible brake controller I recommend the Tekonsha Primus IQ Trailer Brake Controller part # TK90160.
    view full answer...
  • 7-Way Trailer Connector For 2019 Toyota Highlander To Tow A Trailer With Brakes
    Yes, I recommend the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector part # 22119 which plugs into the rear cargo area of the vehicle and extends to the front to plug into a compatible brake controller. The brake controller I recommend is Tekonsha Prodigy P3 part # 90195 which is designed with storable settings if you decide to tow more than 1 trailer in the future. It also has a nice LCD display screen that has easy to read troubleshooting...
    view full answer...
  • 2020 Highlander Platinum AWD Trailer Wiring Recommendation
    Since your 2020 Toyota Highlander has the factory towing package the correct trailer wiring kit is the part # 22119 which will give you a 7-way harness. This kit (and any other option) does require the harness have the power wire ran from the rear to the front of the vehicle. This ensures that the vehicle wiring and trailer wiring is protected in case of a trailer wiring short. The more inexpensive kits are basically hardwire kits which require you to use a circuit tester to test all...
    view full answer...
  • Locating Red Wire in Rear Cargo Door When Installing Tekonsha Wiring Harness # 22119
    I spoke with my contact at Tekonsha regarding the OEM Replacement Vehicle Wiring Harness # 22119 that you are installing on your 2015 Toyota Highlander. He said that if you found more than one red wire in your cargo door harness, your best option for ensuring that you tap into the correct one is to simply test them for function using a circuit tester like # PTW2993. You are just looking for a reverse light circuit wire. You can have a buddy activate the reverse lights on the vehicle while...
    view full answer...
  • Wiring Needed to Tow a Trailer with a 7-Way with a 2018 Toyota Highlander
    If your 2018 Toyota Highlander didn't come with the factory tow package then I highly recommend installing the Tekonsha OEM Replacement Vehicle Wiring Harness # 22119. This comes with everything that you need for a fully functioning 7-Way plus it includes an adapter so that you can install a Tekonsha brake controller. To mount the 7-Way connector to your trailer hitch I recommend using the mounting bracket # PK12711U and the no-drill unit # 18140. I recommend using the Tekonsha Prodigy...
    view full answer...
  • Does Brake Controller Have to Install Tekonsha 7-Way for 2020 Toyota Highlander for Lights to Work
    The trailer lighting circuits of the Tekonsha harness part # 22119 that you referenced will be fully functional without having a brake controller installed. Brake controller circuits are totally independent from the light functions.
    view full answer...
  • Mounting Bracket for Tekonsha OEM Replacement Vehicle Wiring Harness on 2014 Toyota Highlander
    For the Tekonsha OEM Replacement Vehicle Wiring Harness # 22119 you need the 2 inch Pollak Mounting Bracket # PK12711U. You can see the dimensions of this bracket in the accompanying photo.
    view full answer...
    Image 1 for
  • Installation of the OEM Replacement Tow Wiring for 2020 Toyota Highlander
    The Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22119 will have the connectors behind the side trim panels in the cargo area on the driver and passenger side. Farther to the sides behind the trim panels on each side than shown in your photos which only shows the floor trim panel removed.
    view full answer...
    Image 1 for Image 2 for
  • Is Splicing Into Reverse Lights Necessary if Trailer Does Not Have Reverse Lights
    If you are adding the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22119 to your 2018 Toyota Highlander and your trailers do not have reverse lights then you do not need to splice into the reverse light circuit. Since it will not be used there would be no reason for you to have to splice into it.
    view full answer...
  • Parts Needed to Install 7-Way Trailer Connector on 2015 Toyota Highlander
    I'd go with the Tekonsha # 22119 if you think you might go with a different bake controller at some time in the future, but if you're happy with the Curt # C51180 Echo wireless brake controller, you can install a functional 4-pole using part # 118449 and convert that 4 pole to a 7-way using part # ETBC7L. In addition to all the wire, circuit breakers and hardware needed to complete the install, the kit also includes an adapter that will convert the 4-pole provided by the # 118449 to both...
    view full answer...
  • Recommended Trailer Hitch and Wiring for 2018 Toyota Highlander
    For your 2018 Toyota Highlander, I recommend the etrailer.com Class III hitch # E98844 which has a nice matte black powder coat that matches the rear trim well. It has a high weight capacity and will work very well for your vehicle. I've attached a photo to assist. If you want a hidden cross tube, then the only option we currently have is the EcoHitch # 306-X7250 which is a nice clean look with a little more ground clearance. Then I recommend the Tekonsha T-One Vehicle Wiring Harness...
    view full answer...
    Image 1 for
  • Parts Needed to Tow a Trailer with 2020 Toyota Highlander
    We have exactly what you're looking for. In order to tow a travel trailer you will need a hitch, wiring harness, ball mount, hitch ball, plus a hitch pin and clip. If your trailer has brakes you'll need to add a 7 way connector and a brake controller to power the brakes. Then, if your trailer weighs more than 50% of the weight of your tow vehicle then you'll likely want to start thinking about adding a weight distribution system. To start, for a hitch you'll want to use the Curt # C99FR...
    view full answer...
  • Adding 7-Way Trailer Connector to 2016 Toyota Highlander
    For your 2016 Toyota Highlander XLE, I recommend using the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118449 to give you the basic 4 way function, then I recommend using the # ETBC7 to give you the 7-way connector along with 4-way connector and the wiring needed to complete the other functions. This will set you up for the brake controller of your choice that you will then hardwire using the included circuit breakers and wiring. I've attached a video to assist. Alternatively...
    view full answer...
  • Trailer Hitch and Towing Equipment Recommendation for 2018 Toyota Highlander
    I'd be happy to help with that. For a hitch, the # C13200 Curt Class III hitch you'd looked at would work great, but if you'd prefer a hitch that isn't so visible with the crossbar tucked up behind the bumper so the receiver tube and safety chain loops are the only visible portion of the hitch, I'd recommend the Curt # C13394 instead. Either hitch would be compatible with your Hybrid model. I've provided a side by side photo showing what each hitch looks like once it's installed. You'll...
    view full answer...
    Image 1 for
  • Wiring Needed to Tow Travel Trailer With Brakes With 2016 Toyota Highlander
    We can certainly assist you with getting your 2016 Highlander geared up for towing your new travel trailer. Let's begin with the hitch, if you don't already have one. I'd recommend the Curt # C13200, unless your Highlander has a spare tire that's mounted on an aluminum rim, in which case the Draw-Tite # 75896 is recommended. You'll also need a ball mount like # C93KR a hitch pin like # PC3 and a trailer ball like # 19261 for a 1-7/8 or # 63845 for a 2 inch diameter ball. For a trailer...
    view full answer...
  • Is Tekonsha 7-Way Compatible With Redarc Tow-Pro Elite Brake Controller in 2014 Toyota Highlander
    Since the Tekonsha OEM Replacement Vehicle Wiring Harness - 7-Way # 22119 gives you a complete 7-way on your 2014 Toyota Highlander, it is absolutely compatible with the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR. The brake controller adapter that comes with the 7-way will still require you to hardwire in the Tow-Pro Elite, though it is such a good brake controller that is easy to use and doesn't take up space in the cab of your Highlander it is still worth it. The other...
    view full answer...
  • Does Undercoat Need Removing To Install Trailer Hitch on 2014 Toyota Highlander
    You'll want to scrape off the undercoating so that the hitch will mount to a flat surface. If you expose any bare metal from the scraping, you can shoot any bare metal with a quick shot of rust inhibiting spray paint if you wish. Since the hitch and the vehicle body are both constructed of steel, you needn't worry about any galvanic corrosion. If you leave the undercoat in place, it could deteriorate over time and leave the hitch loosened. Which would be bad. If you'll be towing with...
    view full answer...
  • Trailer Connector Recommendation for 2018 Toyota Highlander
    The correct connector will depend on the trailer you're planning on towing. If the trailer has a simple 4-pole trailer connecter, I'd recommend the Tekonsha # 118449. The connector/harness comes in 2 parts, the converter box and the harness with the 4-pole connector. Both pieces would install into the factory connetors located under the rear hatch threshold as shown in the provide photo. The converter plugs into the 10 pin socket closer to the driver's side and the trailer connector itself...
    view full answer...
    Image 1 for
  • Comparing Trailer Hitches and Parts Needed To Tow a Trailer With a 2018 Toyota Highlander
    The trailer hitch options for a 2018 Toyota Highlander (All Models) can be broken down into two categories, hidden and visible. The hidden options provide a cleaner look since the cross tube is hidden behind the bumper but they lack the capacity of the visible options which also allow you to use a weight distribution system. I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver part # 76156 so long as you don't need weight distribution. In regards to wiring, the best option for...
    view full answer...
  • Why Is Pigtail Wiring Harness with Diode for Brake Controllers Required for a 2019 Toyota Highlander
    The Pigtail Wiring Harness with Diode for Tekonsha and Draw-Tite Brake Controllers part # 7865 is required for a 2019 Toyota Highlander no matter which trailer connector or brake controller you're using as the diode is on the stop light switch connection which splices into the vehicle's brake pedal. This connection is independent of the harness or controller. The Tekonsha Prodigy P2 Trailer Brake Controller part # 90885 and Tekonsha OEM Replacement Vehicle Wiring Harness part # 22119 are...
    view full answer...
  • 7-Way and 4-Way Trailer Wiring Harness Recommendation for 2015 Toyota Highlander
    The big difference between 7-way and 4-way trailer wiring applications is if the trailer has brakes. If the trailer does not the 4-way is the common connector style but if the trailer does have brakes the 7-way is used. To cover everything the 7-way is the way to go for your 2015 Toyota Highlander with the kit part # 22119. You can then replace the inluded 7-way socket with the part # HM40975 and you'd have both connectors so you know you'd be covered.
    view full answer...
  • Parts Needed to Install P3 Brake Controller in 2017 Toyota Highlander
    If you have a factory 7-way on your 2017 Toyota Highlander you'd have to hardwire the controller to the vehicle as there isn't a factory port, but if you didn't have a factory 7-way we offer a solution that fits your vehicle and comes with a plug that attaches directly to the back of your P3 part # 90195 with the 7-Way kit part # 22119. For a wiring kit to install the brake controller to a factory 7-way you would want the Wiring Kit for 2 and 4 Brake Electric Brake Controllers # 5506....
    view full answer...
  • Trailer Hitch Recommendation for 2018 Toyota Highlander that Allows Full Size Spare
    For your 2018 Toyota Highlander the Draw Tite hitch part # 76156 is what I recommend for you as it allows you to keep the full size spare like you want and because it has a concealed crosstube which means it will be less visible than other hitches. See attached picture and install video for more info. If you need trailer wiring the 4-way the kit you'd want is the part # 118449 or if you need a 7-way part # 22119. Both of these kits have the most reliable converter boxes around so they...
    view full answer...
    Image 1 for Image 2 for
  • Parts Needed to Tow a Popup Camper with a 2018 Toyota Highlander
    The best class III trailer hitch receiver we have for your 2018 Toyota Highlander is the Draw-Tite Max-Frame Trailer Hitch Receiver part # 76156. The reason I recommend this trailer hitch is because it has a hidden crosstube which means only the receiver tube opening on the trailer hitch will be visible and it will allow for a full size spare tire to be used. This is the only option that has both of these features for your Highlander. The best trailer wiring harness we have for your...
    view full answer...
  • Trailer Wiring Harness Recommendation for 2018 Toyota Highlander
    For your 2018 Toyota Highlander I recommend the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118449. This will give you a converter box behind the rear interior trim panel and a 4-way flat trailer connector in that similar location. Tekonsha converter boxes are the most reliable of the wiring harness manufacturers. I've attached a video of this installation to assist. If you prefer a 7-way trailer connector, then I recommend the Tekonsha OEM Replacement...
    view full answer...

Do you have a question about this Custom Fit Vehicle Wiring?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality custom fit vehicle wiring for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate custom fit vehicle wiring information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Dustin K
Video by:
Dustin K
Employee Jonathan Y
Video by:
Jonathan Y
Employee Cole B
Installed by:
Cole B
Employee Sarah W
Updated by:
Sarah W
Employee Alexander C
Updated by:
Alexander C
Employee Isabelle B
Updated by:
Isabelle B
Employee Ronnie R
Written by:
Ronnie R
Employee Shane H
Test Fit:
Shane H
Employee David F
Test Fit:
David F

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.