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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. 4 Flat
  5. Trailer Hitch Wiring
  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 # 118808
Retail:$126.53
Our Price: $75.40
You Save: 40%
Custom Fit Vehicle Wiring

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Custom Fit Vehicle Wiring 118808 - Powered Converter - 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. Powered ModuLite reduces strain on wiring system. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118808 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.
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  • Reviews (8)
  • Q & A (0)
  • Photos

Tekonsha Custom Fit Vehicle Wiring - 118808

  • Custom Fit
  • 4 Flat
  • Trailer Hitch Wiring
  • Tekonsha
  • Powered 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. 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 in rear cargo area
    • 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 in the rear cargo area. You will have to remove the threshold panel and corner felt trunk liner to access this harness.


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.



118808 Tow Ready T-1 T-Connector - 4 Wire - Modu-Lite

Installation Details 118808 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 - 118808

Average Customer Rating:  5.0 out of 5 stars   (8 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:
2019 Mazda 3

This was the only plug and play harness I found at the time for my car, but so far I'm very pleased. Due to amount of technology and sensitive electronics in these new cars, I wouldn't want to try to probe a bunch of wires and connect a standard trailer light kit. The voltage and current with the LED tail lights might not even trigger a standard kit. This kit made it much easier, although it's much more involved as you have to remove a bunch of panels, and run power to it. It's great that absolutely no wires were cut or tapped, and no holes needed to be drilled.

Couple of install notes:
* The instructions are for a sedan, but I installed it on a hatchback where you have to remove a few more panels. Nothing too complicated, but take your time and look for all the fasteners. The plug for the right rear is a little more involved as it's behind a few more things.

* The rear hatch weather stripping has to be pulled away in a few areas. It's got a sealant underneath it that is easy to get everywhere, so remove the stripping slowly and try not to make a mess - it sticks to everything.

* Instead of running to the battery, I used an add-a-tap fuse connection at the drivers kick panel fuse block. I used a 15amp fuse just like the package came with.

* I taped the module in the left rear area under the taillight where you ground it to a factory ground point near by.



by:
2019 Mazda 3

I installed this on my 2019 Mazda 3 Sport. It was not a very hard install. In fact I was impressed with the kit having never done this before in my life. I’ve used it many times to tow two different trailers. There have been zero issues. If you are in Canada like me, I still recommend you get this one off etrailer. One year later they asked me to review this product… This was a good buy!



by:
2021 Mazda 3

Well built. Connectors fit perfectly. Now if I can just figure out the best way to get the power wire from the trunk to the battery in the engine bay. The instructions and pictures could be a little better and more descriptive.



by:
2020 Mazda CX-30

Great product, excellent customer service! Would recommend to anyone looking for a trailer hitch and harness.



by:

Works as advertised.



by:

The part worked perfectly!



by:

Wiring was professionally installed and functioned without any problems all season.



by:


8
8

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

  • Trailer Hitch and Wiring that Fits 2022 Mazda 3 Hatchback
    Yes we do have a hitch that fits the 2022 Mazda 3 Turbo hatchback that is AWD with the part # C98BR. We have confirmed this fit with Curt who designed the hitch. If you were in need of trailer wiring too the part # 118808 would be the correct fit.
    view full answer...
  • Recommended Hitch and Wiring Harness for a 2019 Mazda 3 Sedan
    The Curt Trailer Hitch Receiver item # C44DR is confirmed to fit your 2019 Mazda 3 sedan and it does have the capacity to pull your 650 lbs jet ski trailer. I just looked at your Mazda's owners manual and your max towing capacity is the same as this hitch at 2,000 lbs. You will also need a wiring harness to control your trailer's lights. I recommend the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item # 118808. This custom-fit T-One connector plugs into your...
    view full answer...
  • Hitch Fit for 2020 Mazda 3 Sedan
    The Draw-Tite # 24982 Class I hitch is a fit for 2019 - 2021 Mazda 3 Sedan, so it'll work perfectly for you. If you'll be using the hitch for light duty towing, you'll also need a trailer wiring harness like # 118808, a ball mount like part # 3593 and a trailer ball like # 19256 for a 1-7/8 inch ball or # 19258 for a 2 inch ball.
    view full answer...
  • Tips for Routing Power Wire of Trailer Wiring Kit for 2019 Mazda 3
    When routing the power wire of the Tekonsha trailer wiring kit part # 118808 to the vehicle's positive battery post we don't have an exact route you'll need to take for your 2019 Mazda 3 but I can help steer you in the right direction. Basically you want to route it up to the front of the vehicle from underneath it securing it with the included zip ties avoiding anything hot (exhaust) and moving components (suspension). I attached a help article on routing the power wire for you to check...
    view full answer...
  • Recommended Hitch for a 2023 Mazda 3 Hatchback
    I just heard back from Curt and the correct hitch for a 2023 Mazda 3 Hatchback is the Curt Trailer Hitch item # C98BR. This hitch is custom fit and bolts to your Mazda with included hardware. This is a class I hitch with a 1-1/4" receiver. I have attached a couple of pictures below so you can see what this hitch looks like once installed. If you are planning on towing you will also need a wiring harness item # 118808 and the Draw-Tite Drawbar item # 3593 and then for hitch balls item...
    view full answer...
    Image 1 for Image 2 for
  • Recommended Hitch for a 2023 Mazda 3 Sedan
    The Draw-Tite Trailer Hitch item # 24982 is confirmed to fit the sedan models only of the 2023 Mazda 3. This hitch is custom fit and bolts to your Mazda with included hardware. This is a class I hitch with a 1-1/4" receiver. It has a 2,000 lbs towing capacity and a 200 lbs maximum tongue weight. If you are planning on towing you will also need a wiring harness item # 118808 and the Draw-Tite Drawbar item # 3593 and then for hitch balls item # 19258 for a 2 inch ball or item # 19256 for...
    view full answer...
  • Recommended Vehicle Wiring Harness For 2020 Mazda 3 Sedan
    There sure is! The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118808 is confirmed to fit your 2020 Mazda 3 Sedan, and plugs into the factory connectors. The only thing you will need to do is run the black wire to the the battery with the included fuse to keep the harness from overloading your vehicle's factory wiring. I included the written instructions of the # 118808 for you to take a look at.
    view full answer...
  • Fit of Curt C98BR Class I Hitch on 2021 Mazda 3 Turbo Hatchback
    The Draw-Tite Class I hitch, part # 24984 is a fit for all models of the 2021 Mazda 3 according to Draw-Tite. Usually, the on the more sporty models of small cars, the dual exhaust can present a fit problem, but as you can see in the linked installation instructions as well as the provided photo, the hitch fits perfectly with a dual-exhaust equipped vehicle. The receiver tube is hard to see, so I've circled it in red. If you'll be using the hitch for light duty towing, you'll also need...
    view full answer...
    Image 1 for
  • Will Trailer Hitch Receiver Fit on 2010 & 2021 Mazda3
    There is a trailer hitch receiver that will fit a 2021 Mazda3 (both the sedan and hatchback), though a hitch from a 2010 won't be able to be transferred. The reason for that is the Mazda3 underwent a design change for the 2019 model year, so the different body style necessitated a change in the hitch design. So for a 2021 Mazda3, you have a pair of options for a hitch, again depending on if you are going with the sedan or hatchback: - Hatchback: Curt Trailer Hitch Receiver # C98BR -...
    view full answer...
  • Towing Set Up for a 2021 Mazda 3 Hatchback
    Yes, the Curt Trailer Hitch Receiver item # C98BR is a confirmed fit for the hatchback model of the 2021 Mazda 3. This hitch is custom fit and bolts directly to your Mazda with included hardware. It has a maximum gross trailer weight of 2,000 lbs and a maximum tongue weight 200 lbs. This will be suitable for the 800 lbs uhaul trailer and your 417 lbs bike but you will want to check your owner's manual to ensure your Mazda 3 has the capacity to pull that much of a load. For a wiring...
    view full answer...
  • Is Underbody Trim Panel Reinstalled on 2023 Mazda 3 For Draw-Tite Hitch Installation
    Yes, to install the Draw-Tite Sportframe Trailer Hitch Receiver # 24984 on your 2023 Mazda 3 you will need to remove that panel and it won't be put back into place. Hitch instructions only mention this when the hitch either prevents the panel fitting back into place or there is excessive trimming that needs to be done on the panel for it to fit back in place so it's easier to just remove it and leave it off. If you'll be using the hitch for towing I recommend installing the T-One Wiring...
    view full answer...
  • Trailer Hitch Receiver and Bike Rack For a 2020 Mazda 3 Hatchback
    For your 2020 Mazda 3 hatchback you will need the Curt Trailer Hitch Receiver # C98BR. This hitch is custom fit for your Mazda 3 and has a maximum tongue weight rating of 200lbs. Be sure to check your owners manual or with a dealer for the maximum weight you can carry. You will need to enlarge 1 hole one each side of the frame to be able to insert the mounting hardware. I recommend the Thule Camber 2 Bike Rack # TH9058 that will allow you to carry 2 bikes that weight up to 37.5lbs each....
    view full answer...
  • Hitch Receiver and Capacity for a 2020 Mazda 3 Hatchback
    I have a hitch for your 2020 Mazda 3 hatchback but there are no 2" receivers available. At this point I would say there is not going to be one made for it. You can still do some towing with the Curt item # C98BR. This hitch has a 1-1/4" receiver but it still has a towing capacity of 2,000 lbs and a maximum tongue weight of 200 lbs. It looks like your Mazda 3 has a 2,500 lbs towing capacity so this hitch would be just under your vehicles capacity. I have linked a picture below to show...
    view full answer...
    Image 1 for
  • What Is The Highest Capacity Trailer Hitch Available For A 2021 Mazda 3 Hatchback?
    For your 2021 Mazda 3 Hatchback, I recommend going with the Curt # C98BR. At the time of this writing, this is actually the only hitch we have that is confirmed for your vehicle, but due to its hidden design, it is one that I do like. With this being a Class I hitch, it will have a 1-1/4" receiver and is rated up to 2,000 pounds towing and 200 pounds of tongue weight, though you will need to check your owner's manual for your vehicle's capacities. To complete a towing set up, you will...
    view full answer...
    Image 1 for
  • Where To Get Trailer Hitch and Wiring Installed At on 2022 Mazda 3 Sedan
    In order to tow a trailer with a 2022 Mazda 3 Sedan you'll need a trailer hitch, the Draw-Tite Sportframe Trailer Hitch Receiver part # 24982 is what I recommend. This hitch offers an easy bolt-on install with no drilling required. In order to complete your setup you'll also need a trailer wiring harness, the T-One Vehicle Wiring Harness part # 118808 is what I recommend. Finally, you'll need a ball mount/hitch ball, the Draw-Tite Drawbar part # 3593 with 1-7/8" Hitch Ball part # 19256...
    view full answer...
    Image 1 for
  • Recommended Trailer Hitch Receiver For A 2021 Mazda 3 Hatchback
    Currently, the Curt Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4" # C98BR is the only confirmed fitting hitch for a 2021 Mazda 3 Hatchback. It has a maximum gross trailer weight of 2,000 lbs and maximum tongue weight of 200 lbs. It is a no-drill, bolt-on installation and comes complete with hardware kit and installation instructions included. If you also need trailer brake wiring for hauling a trailer, I recommend the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector...
    view full answer...
  • Recommended Hitch for a 2023 Mazda 3 Sedan
    No, it does not. I checked with our vendors and the only hitch that fits a 2023 Mazda 3 sedan is the Draw-Tite Trailer Hitch item # 24982. This is a class I hitch with a 1-1/4" receiver. It has a 2,000 lbs towing capacity and a 200 lbs maximum tongue weight. I have linked the installation instructions below and they are pretty detailed, lots of pictures, so you will get a great idea of what is involved. If you are planning on towing you will also need a wiring harness item # 118808...
    view full answer...
  • Will Curt Trailer Hitch Fit 2021 Mazda 3 Hatchback
    We do have a hitch that will fit your 2021 Mazda 3 hatchback, but it is not the Draw-Tite # 24982. This hitch is a confirmed fit for the sedan only. The correct fit for your hatchback is the Curt Trailer Hitch Receiver # C98BR. This custom fit Class I hitch has the same 1-1/4" receiver with a maximum gross trailer weight of 2,000 lbs and tongue weight of 200 lbs. If you plan on doing some towing, I recommend the # 118808 T-One Vehicle Wiring Harness for your wiring needs. This custom...
    view full answer...
  • Best Hitch Available For A 2021 Mazda 3 Hatchback To Tow A Small Trailer
    As your 2021 Mazda 3 is the hatchback version, you will need the Curt # C98BR. The other hitch that comes up ( # 24982) will be specific to the sedan model, so it will not fit your vehicle. With that said, this will be rated up to 2,000 pounds towing and 200 pounds of tongue weight, so it will definitely handle the trailer you are looking to tow. The Tekonsha # 118808 wiring harness would have been the one I was going to recommend so you are good to go there. Though one wire will need...
    view full answer...
  • Trailer Hitch Receiver and Wiring Harness Confirmed to fit a 2022 Mazda 3 Hatchback
    Currently the Draw-Tite Sportframe Trailer Hitch Receiver # 24984 is our only receiver that is confirmed to fit your 2022 Mazda 3 hatchback. The EcoHitch Hidden Trailer Hitch Receiver # EH23VR that you found is only confirmed to fit the 2019-2020 Mazda 3 sedan. The T-One Vehicle Wiring Harness # 118808 will give you a 4-way flat connector. This connector is needed for the lights on most small trailers you may pull and can also be used with Auxiliary Lights # C53201 on any hitch mounted...
    view full answer...
  • Which Hitch Fits 2019 Mazda 3 Hatchback All Wheel Drive
    Yes the Curt hitch part # C98BR does fit the all wheel drive models of the 2019 Mazda Hatchback like you have! We had a customer with your exact vehicle leave us a review letting us know if fit perfectly as well which I attached a picture of. If you were in need of trailer wiring as well the correct fit is the part # 118808. This kit installs easily and has a very reliable converter box so it will last a long time!
    view full answer...
    Image 1 for
  • Recommended Hitch for a 2023 Mazda 3 Sedan
    The only hitch available for the 2023 Mazda 3 Sedan is the Draw-Tite item # 24982 you were looking at. This is a class I hitch with a 1-1/4" receiver. It has a 2,000 lbs towing capacity and a 200 lbs maximum tongue weight. If you are planning on towing you will also need a wiring harness item # 118808 and the Draw-Tite Drawbar item # 3593 and then for hitch balls item # 19258 for a 2 inch ball or item # 19256 for a 1-7/8 inch ball.
    view full answer...

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


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Alexander C
Written by:
Alexander C

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