bing tracking image
  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 # 118773
Our Price: $64.95
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: 1.66 lbs
Quantity: 
In Stock
Tekonsha Custom Fit Vehicle Wiring - 118773
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

Customer Photos

Need help with installation?
Locate installers near me
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. Powered ModuLite reduces strain on wiring system. 1-833-496-1390 to order Tekonsha custom fit vehicle wiring part number 118773 or order online at etrailer.com. 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.
  • All Info
  • Reviews (25)
  • Q & A (0)
  • Photos
  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - 118773

  • 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. 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
    • Locate connection points behind tail lights
    • Plug in T-connector
    • Run hot lead 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
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 5 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the floor trim panels, access panels, and tail light assemblies to access this harness.


T-One Connection Location Points Behind Tail Lights

Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery and insert the provided fuse.


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 plugs on your automobile and the 4-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 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.



118773 Tekonsha T-1 T-Connector - 4 Wire - Modu-Lite

Installation Details 118773 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 - 118773

Average Customer Rating:  4.9 out of 5 stars   (25 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. Powered ModuLite reduces strain on wiring system.

by:
Volvo

Had my Volvo dealer install the harness when they installed the hitch. Everything seems to function well - no troubles at all no matter what the weather.




by:
2019 Volvo XC60

The kit fit well in a Volvo XC60. It's kind of strange that Volvo didn't provide more of a plug-in option, but this worked well. I'm very glad the battery was located in the trunk, because I would not have been excited about routing the battery wire all the way to the front.




by:
2018 Volvo XC60

This harness is almost perfect. One gripe is that the instructions say to install this on the drivers side rear compartment. I don't know why anyone would want to do that. The factory harness kit attaches on the passenger side, the gasket to pass wires through the body is on the passenger side, and there is a fuse box with 12V stud as a spare grounding stud for the factory trailer wiring. Installing it on the drivers side would require lengthening the trailer 4 pin wires and stringing a longer power back across the vehicle.

So I installed on the passenger side. My complaint with that is the yellow/brown wires going to the drivers side taillight is too short to reach across the vehicle, so I had to splice in a wire to extend it. Making the inline wires the same length as the passenger side would have made this a perfect wiring kit allowing install on either side of the vehicle.

Like the hitch, I referred to the Volvo hitch/wiring harness install for details on body removal, and existing wiring details. (Google Volvo Instruction No 31454723 for Part No 31439424).

When you remove the passenger side panel, there is a circuit breaker box and two factory connectors covered in a small bag. These are the connectors for the factory wiring harness module. If you add a breaker in the spare slot between the existing 40A and 20A breakers, this will provide power (always hot) to the Red/Brown wire on the 2 wire power connector. I terminated the black wire from the Tekonsha module with a spade crimp which fit right into the connector (could have cut off the factory connector and just spliced the wire, but decided against that). Taped and secured the connection to make sure it doesn't separate over time. I added a 20A fuse since that was the smallest amperage I could find at the auto parts store (factory module comes with a 40A fuse but the power plugs right into their module, and Tekonsha kit came with a 15A fuse).

I originally installed the 4 pin connector to the left of the hitch receiver. When I started to trim the bumper fascia, I realized the sensor to open the tailgate with your foot was in the way, so had to move it to the right side of the receiver.




by:

Products didn't fit on my model. Was charged restocking fee and had to pay for return shipping




by:

Easy installation on 2021 Volvo XC 90!!!! Works great with great instruction. Because hybrid did not link into internal electrical system.




by:

Clear, easy to follow instructions. Good quality product.




by:

Easy to Insall and all directions clear.




by:

Awesome! Everything I needed and it fit like a glove. Very impressed.




by:

Instructions were phenomenal. Kit was exactly as described. Very cool that they follow up a year later to see how things are working out, and happy to report that it has been a positive experience.




by:

The order process was easy. Delivery was within a few days… fast! But, the best part was the easy to follow video instructions that allowed me to install the hitch in an hour. I haven’t done the wire harness yet, but if it’s like the hitch… it’ll be a breeeze. Thanks etrailer!!




by:

This is an excellent product. Would definitely recommend to anyone. Makes installing very easy.




by:
2018 Volvo XC60

The light wire harness was a perfect fit and as always, the video guide made it easy to install.




by:

Product was easy to install. The adaptor box gits nicely in the spare tire compartment, along with the connector. It was great for my occasional use of a trailer. A great pairing with the hitch for the bicycle rack




by:
2018 Volvo XC60

Perfect fit for my 2018 Volvo XC60. Getting access to the tail lights was the most difficult part. Installation took one hour. The instructions included show the battery in the engine compartment, but my vehicle has the battery in the spare tire compartment under the cargo area. No need to route the black 12 ga. power wire forward under the vehicle. Bonus! Tested the 4-Flat connector and good to go.




by:
2018 Volvo XC60

Great product, plug & play, & video's on line made it easy. Dealer was going to charge me $850 for what I did for $65 & less than an hour of my time. Great deal




by:

Easy to install perfect fit works as advertised great system.




by:

The product worked great




by:

Trailer wiring kit has worked flawless for more than a year. I am very satisfied.




by:

We did not install it ourselves and paid about $90 to have it done. It works well




by:




by:




by:




by:
2019 Volvo XC60




by:




by:



25
25

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

  • Location of Plugs to Install Trailer Wiring Harness on 2020 Volvo XC60
    It sounds like you're trying to install a wiring harness like the Tekonsha # 118773, and the plugs you're looking for are located behind the trim panels in the cargo area on the driver and passenger side. I've linked the instructions for this harness that show where these are located as well as added a photo that one of our customers sent in that shows what that area looks like when the covers are removed.
    view full answer...
    Image 1 for
  • How To Install The Tekonsha T-One Connector Wiring Harness In A 2022 Volvo XC60
    The Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118773 is a simple installation that will just plug into the tail light connecters. You'll have to remove the floor panel/trim and then remove the side panels to gain access to the tail light wiring. One you are able to access the tail light wiring you'll just pull it from the tail light housing and plug it into on end of the T-connectors and the other end back into the tail light housing. I've attached a video...
    view full answer...
  • Finding Someone to Install Trailer Hitch on 2019 Volvo XC60
    Since we aren't familiar with your area the best solution I can give you for finding someone to install the Draw Tite Hitch # 76194 and wiring kit part # 118773 on your 2019 Volvo XC60 is to check with mechanics and garages near you that have solid reputations. Hitch installs are very basic for mechanics based on what they normally work on so the install does not take a specialist by any means at all.
    view full answer...
  • Recommended Trailer Hitch for 2018 Volvo XC60
    We sure do! For your 2018 Volvo XC60 I recommend the Draw-Tite Class III Max Frame Receiver Hitch # 76194. The hitch will use existing holes in the Volvo's frame for a no-drill installation and features a nice hidden design where only the receiver is visible behind the vehicle. This is currently the only hitch available that is confirmed to fit your vehicle. It has a towing weight capacity of 6,000 pounds and a tongue weight limit of 900 pounds. You will also want to verify the towing...
    view full answer...
    Image 1 for
  • Installing Tekonsha T-One Vehicle Wiring Harness on 2019 Volvo XC60
    The Tekonsha T-One Vehicle Wiring Harness # 118773 plugs into factory ports behind the driver and passenger side tail lights. To access the connection points on your Volvo XC60 you should just need to remove the floor trim panels and access panels inside the rear cargo area (see attached image). It might take a bit of digging but the factory harness will then be located inside the access panel area. If you are still having trouble find the harness please let me know and I will be happy...
    view full answer...
    Image 1 for
  • Does Trailer Hitch Receiver for 2019 Volvo XC60 Interfere With Hands-Free Liftgate
    It is possible that the Draw-Tite Trailer Hitch Receiver # 76194 for your 2019 Volvo XC60 will interfere with the hands-free liftgate feature. Many times with hitches you only need to kick your foot to either side of the receiver for it to work but with this hitch it is possible you may lose the hands-free feature. I have added a link to a video install for you to check out as well of the Draw-Tite Trailer Hitch Receiver # 76194. Additionally, if you plan on towing and need trailer wiring...
    view full answer...
  • Draw Tite Hitch that Fits 2020 Volvo XC60
    The Draw Tite hitch part # 76194 that you referenced is a confirmed fit for your 2020 Volvo XC60 with or without air suspension. There also isn't any special fascia trimming required for the R models either. For trailer wiring the Tekonsha kit # 118773 would then be a great choice as well as it installs easily and is very reliable.
    view full answer...
  • Trailer Hitch Receiver and Wiring Harness Fit For a 2022 Volvo XC60 Recharge
    The installation for the Draw-Tite Max-Frame Trailer Hitch Receiver # 76194 on your 2022 Volvo XC 60 Recharge will be the same as the video on the 2021 we have. The exhaust is in the same location they simply use a turn down exhaust tip versus the rear exit. The bumper fascia and heat shield will still need to be trimmed just like in the video and the rear fascia will still have the support of the fasteners on either side to hold it in place. I recommend installing the T-One Vehicle Wiring...
    view full answer...
  • 4-Way to 5-Way Trailer Wiring Harness Adapter For Vehicle
    Yes, we do have a 4-way to 5-way adapter for your vehicle to activate the surge brakes on your trailer. What you need is the following: - Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter # 20036
    view full answer...
  • Trailer Hitch Recommendation for 2018 Volvo XC60
    For your 2018 Volvo XC60 we have the really great option from Draw Tite part # 76194. This hitch has a concealed crosstube which allows it to be mostly out of plain sight and has great towing capacities at 6,000 lb trailer weight. Then for wiring we have the T-One kit part # 118773 which is a custom fit and uses the most reliable converter box so I recommend it highly. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts;...
    view full answer...
  • Ground Clearance With Draw-Tite Trailer Hitch Receiver 76194 Installed On 2021 Volvo XC60
    Luckily we have the exact measurement you are looking for. When we installed the Draw-Tite Max-Frame Trailer Hitch Receiver # 76194 on a 2020 Volvo XC60 we found that from the bottom of the safety chain loops to the ground is 9", and from the bottom of the receiver tube to the ground is 11" as shown in the included diagram. The Draw-Tite # 76194 is a great option for your 2021 Volvo XC60 as it is a very strong trailer hitch receiver that has a maximum tongue weight rating of 900lbs, and...
    view full answer...
    Image 1 for
  • Recommended Trailer Hitch Receiver For2019 Volvo XC60 Plug In Hybrid
    We have just what you are looking for. I recommend the Draw-Tite Trailer Hitch Receiver # 76194 which my contact at Draw-Tite was able to confirm will fit your 2019 Volvo XC60 T8 Plug In Hybrid. This hitch has a 900lb tongue weight rating and a 6000lb trailer weight rating making it a perfect option for a variety of accessories ranging from a bike rack, to a ball mount to tow a trailer. If you are planning on towing with your XC60 Plug In Hybrid you will also need a vehicle wiring harness...
    view full answer...
  • What Hitch Receiver And Wiring Do You Recommend For My 2022 Volvo XC60
    I can definitely get you set up with a wiring harness. At this moment, there is not a hitch receiver that is available for your 2022 Volvo XC60. I spoke with a representative from Curt and he does not have an idea on when a hitch receiver will be made available for your vehicle. However, I do have the wiring you will need for you vehicle. You will first need a to install a 4-way connector on your vehicle. The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, part # 118773,...
    view full answer...
  • Trailer Hitch and Wiring Harness for 2022 VolvoXC 60 Recharge Plug In Hybrid
    I can confirm that both the Draw-Tite Max-Frame Trailer Hitch Receiver item # 76194 and the Tekonsha T-One Vehicle Wiring Harness item # 118773 fit your 2022 VolvoXC 60 recharge plug in hybrid. This hitch is custom fit and bolts directly to your Volvo with included hardware. The T-One connector plugs into your Volvo's wiring harness, which is located behind the tail lights to give you a 4-flat connector to control your trailer or accessories lighting functions. To round out your towing...
    view full answer...
  • Do Curt & Draw-Tite Trailer Hitch For 2019 Volvo XC60 Interfere With Hands-Free Liftgate
    It is possible that with both the Curt and Draw-Tite trailer hitches that fit your 2019 Volvo XC60, the hands-free liftgate will be interfered with: - Draw-Tite Max-Frame Trailer Hitch Receiver # 76194 - Curt Trailer Hitch Receiver # C53HR Having said that, most of the time you simply need to kick your foot to the side of the receiver as opposed to the middle and the hands-free liftgate will still work; while this isn't absolutely guaranteed, there haven't as of yet been reports from...
    view full answer...
  • Recommended Trailer Hitch for 2022 Volvo XC60
    Yes we do, I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver, # 76194. This is a Class III hitch with a 2" receiver that uses existing holes in the Volvo's frame for a no-drill installation. This is a hidden design meaning that only the receiver is visible once installed. If you intend to use for towing and not just a bike rack or other accessories, I suggest the Tekonsha T-One Vehicle Wiring Harness, # 118773. This is a plug-and-play installation so no need to cut and splice...
    view full answer...
  • Trailer Hitch For a 2022 Volvo XC60
    Yes, there is a hitch other than the Stealth hitch for your 2022 Volvo XC60. - Curt Trailer Hitch Receiver # C92WR This hitch is made in the USA, has a bolt-on, no-drill installation and will provide you with a 2" hitch receiver. The 2" hitch receiver is the most common size used for hitch mounted accessories such as bike racks, cargo carriers, and ball mounts. If you plan to do any towing, you can round out a tow package by adding the T-One Vehicle Wiring Harness # 118773 and the etrailer...
    view full answer...
  • Trailer Hitch Receiver And Vehicle Wiring Harness For a 2021 Volvo XC60 Recharge Plug In Hybrid
    Yes, the Draw-Tite Max-Frame Trailer Hitch Receiver # 76194 is confirmed to fit your 2021 Volvo XC60 Recharge plug in hybrid. This has been confirmed by Draw-Tite. This receiver is rated for a maximum of 900lbs of tongue weight and 6,000lbs total trailer weight. Be sure to check with your Volvo dealer for the exact specifications for your vehicle. The Tekonsha T-One Vehicle Wiring Harness # 118773 will give your Volvo a 4-way flat trailer connector. With this connection it will allow...
    view full answer...
  • Hidden Hitch Trailer Hitch Receiver and Wiring For a 2023 Volvo XC60
    Yes, we do have the Hidden Hitch by Draw-Tite Trailer Hitch Receiver # DT82GR for your 2023 Volvo XC60. This receiver has a removable locking receiver tube to secure it to the crossbar when needed. When not needed the removable receiver can be stored in its included storage case. The T-One Vehicle Wiring Harness # 118773 will give you a 4-way connector. This connector allows you to connect to the lights on most small trailers and will allow you to use Auxiliary Lights # C53201 with a...
    view full answer...
  • Recommended Hitch for a 2022 Volvo XC60 Recharge
    You will want to go with the Draw-Tite Hitch item # 76194. There is no stealth hitch for the 2022 Volvo XC60 Recharge. The Draw-Tite hitch is confirmed to fit your Volvo. I like this hitch because it has the highest capacity amongst available hitches and it installs with a hidden cross tube. This leaves only the 2" x 2" receiver visible when you are not towing. It has an identical installation method and as of 12/03 you'll save some money over the Curt item # C92WR. The Draw-Tite Hitch...
    view full answer...
    Image 1 for Image 2 for
  • Trailer Hitch Receiver and 4-Way Wiring Harness Confirmed to Fit 2022 Volvo XC60 Recharge Hybrid
    Yes, the Curt Trailer Hitch Receiver # C92WR is confirmed by Curt to Fit all trims of the 2022 Volvo XC60 including your recharge hybrid. I recommend installing the T-One Vehicle Wiring Harness # 118773 when you install the receiver. This 4-way connector will allow you to control the lights on most small trailers and can also be used with Auxiliary Lights # C53201 in the event your hitch mounted accessory impairs the view of the taillights on your Volvo. The Curt Easy Mount Bracket #...
    view full answer...
  • Will Auto Hitch on 2018 Volvo XC60 Prevent Installation of Aftermarket Hitch
    My contacts at Curt and Draw-Tite haven't seen a vehicle with the automatic hitch feature (which is what I'm assuming you're speaking of), so I couldn't say with total certainty if its presence would interfere with the installation of a Class III hitch like the Curt # C53HR, but from the videos I've seen online, the auto hitch sure looks like it would interfere with the installation of an aftermarket hitch.. I'd imagine if the automatic hitch is removable, an aftermarket hitch could be...
    view full answer...
  • Hitch Ball Height of Stealth SH87FR Hitch Installed on 2019 Volvo XC90
    The receiver included with the Stealth # SH87FR hitch for the 2019 Volvo XC60 isn't meant for towing, it's meant for hitch mounted accessories like bike racks or cargo carriers. In order to tow, you'll need the # SH87FRT hitch kit which includes the ball mount that's meant for towing which provides a 2 inch rise which will place the top of the trailer ball around 18 inches which wouldn't be sufficient to tow your trailer so it's level. Unfortunately, this height isn't adjustable. I'd recommend...
    view full answer...
  • Concealed Hitch Option for 2021 Volvo XC60
    We offer both a partially concealed and a fully concealed option for your 2021 Volvo XC60. For a partially concealed option that would have only the receiver tube and the safety chain hoops visible from the rear, the Curt Class III hitch, part # C92WR would be a great choice. When installed, the hitch crossbar will be concealed behind the bumper/fascia. If you decide to go this route, you'll also need a # 118773 trailer wiring harness, a # 2753 ball mount. For a 1-7/8 inch trailer ball,...
    view full answer...


< Previous
12



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




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • 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 Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Joshua S
Video by:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Alexander C
Written by:
Alexander C
Employee Conner L
Test Fit:
Conner L
Employee Ryan G
Test Fit:
Ryan G

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.