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  1. Custom Fit Vehicle Wiring
  2. Kia
  3. Niro
  4. 2019
  5. Tekonsha
FITS 2019 Kia Niro
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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

Item # 118749
Retail:$93.80
Our Price: $60.32
You Save: 36%
Custom Fit Vehicle Wiring
Confirmed to Fit
2019 Kia Niro

EV

excluding Plug-In Hybrid and EV

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Shipping Weight: 1.65 lbs
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118749 - Custom Fit Tekonsha Trailer Hitch Wiring
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Tekonsha custom fit vehicle wiring for your 2019 Kia Niro are available from etrailer.com. Installation instructions and reviews for your Kia custom fit vehicle wiring. Expert service, and great custom fit vehicle wiring prices. etrailer.com carries a complete line of Tekonsha products. Order your T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part number 118749 online at etrailer.com or call 1-800-940-8924 for expert service.
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2019 Kia Niro - T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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

Quickly and easily install a 4-way trailer connector on your Kia Niro 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
    • Locate connection points in rear cargo area
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes ModuLite power converter to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects 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: 4.2 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 inside your rear cargo area. You will have to remove the cargo door and some interior paneling 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.



118749 Tekonsha T-1 T-Connector - 4 Wire - Modu-Lite Converter Included

Installation Details 118749 Installation instructions

California residents: click here


Customer Satisfaction Score:


Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118749

Average Customer Rating:  4.8 out of 5 stars   (26 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.

by:

The package shipment was very efficient and the contents were exactly as described. The instructions provided were precise for my vehicle and easy to follow, and installation went perfectly. Initially my car dealer advised against wiring up a hitch on my KIA Niro for a light trailer, but when I showed them the photos and description of the custom etrailer harness, they were impressed and approved installation. Everything works just as hoped for to hook up my new kayak trailer. Thanks etrailer for a great product!




by:
2022 KiaNiro

This was very easy to install, and works perfectly. I installed mine on the PHEV model, and it was much easier than the standard model since the 12V battery is actually in the back next to the passenger side blinker, so I was able to run the power wire beside the right blinker wire, and never had to run a wire to the front. The whole installation took me less than an hour, and I have no experience.




by:

The hitch and wiring harness seem like great quality. I did not install and have sold my Kia Niro. Mow I have to sell my brand new hitch and wiring harness.




by:

Plan on spending a fair amount of time installing the power source under the vehicle.




by:
2017 KiaNiro

I followed the video and proceeded with install on the 17 Nero. I was worried it would be too much for me. Not an issue… all work I did was on my back without jacking up the car. Total job literally took me an hour sand a half. Instructions were ample and precise. It was a great buy




by:

Easy to follow instructions. Works wel l.




by:
Kia

Works great
Installed on Kia Niro EV

Install was a bit of work but it works just fine




by:

Appears to be products as ordered




by:
2018 KiaNiro

Even though this item isn't supposed to be compatible with the PHEV Niro, it does actually work with it. In fact, installation is a little easier than with the regular hybrid because you can bolt the power cord to the 12v battery in the luggage compartment instead of running it up to the front. If you're a little handy you can figure it out but other than that one bit the installation video is the same for the PHEV. I use this with the Curt 2-inch hitch for the Niro, which I had to modify slightly to fit the PHEV (had to take out a small notch on one flange with an angle grinder in order to clear a bit of frame support that I guess the regular hybrid doesn't have). As always, etrailer is a great company to work with.




by:

Install Video online was spot on. After plugging in via flat 4 to 7 pin adapter it did not work. Wife turned off her car and restarted and it then started working. I added a wireless camera to the license plate bracket tapped the running lights and all is good ATT . I can recommend it but took 1 star off for the false start. Whether it was a connector issue or controller needed rebooted is unknown but I do have lights working on my camper and the camera is great since the Pup blocks sight lines of cars behind (wider/higher than my wife's Niro's mirrors ). Not now clear view behind trailer.




by:

Perfect fit on Niro PHEV SX 2020
Work
fine, i'm completed satisf




by:
2019KiaNiro

i haven't had a chance to install them but everything looks of good quality and expect them to perform good like past parts purchased from etrailer.




by:

15min to install. Easiest hitch I have ever done




by:

Prompt shipment.




by:
2019KiaNiro

Quick order processing and delivery




by:
2017 KiaNiro

great quality and very good detailed video for installation




by:


Comments
I have used it several times and it gets the job done!
James - 02/23/2022


by:

Customer service was excellent received product as described in a timely fashion easy to talk to and good follow up communication




by:




by:




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by:
2020 KiaNiro




by:
2008 Toyota Prius




by:
2017 KiaNiro

Exactly as described, works like a char m!




by:
2017 KiaNiro



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

  • Could Power Wire for Tekonsha Trailer Wiring Run to Rear Battery of 2019 Kia Niro PHEV
    Not all models of the 2019 Kia Niro have an auxiliary battery at the rear of them which is why a power wire wasn't ran to it when installing the part # 118749. If you have a PHEV which has the second battery you could do this.
    view full answer...
  • Trailer Wiring that Fits 2021 Kia Niro EV
    Yes, the Tekonsha trailer wiring kit part # 118749 is a confirmed fit for your 2021 Kia Niro EV and would work great. This is the easiest to install and most reliable kit available. I attached an install video for this for you to check out as well.
    view full answer...
  • Can Trailer Wiring for 2019 Kia Niro be Used as Tow Bar Wiring in Reverse
    We have tow bar wiring solutions that will work great on your 2019 Kia Niro but trailer wiring does not work in reverse so you wouldn't be able to use the kit you mentioned. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front...
    view full answer...
  • Trailer Connector Testes Fine But Trailer Lights Dont Work
    If you've used a circuit tester like # PTW2993 on the pins of the 4-pole trailer connector provided by the # 118749, then the wiring problem exists on the trailer. In order for none of the functions to work, you probably have a bad ground connection. The ground wire from the trailer connector will typically ground to the trailer tongue. Make sure this connection is secure and made to clean, non-rusted metal. If not, sand the grounding point down to bare metal and install a star washer between...
    view full answer...
  • Wiring Harness Fits for 2018 Kia Niro
    The wiring harness fits we have for the 2018 Kia Niro, which include Curt part # C56376 and Tekonsha part # 118749 that you purchased, specifically exclude fitment on the plug-in hybrid version of the car. You'll see this notice on the linked page. If you have the plug-in hybrid we do not have a trailer wiring harness for it. I did check with my technical contact at Curt about installing wiring in your vehicle. He said that a Niro plug-in hybrid owner has reported using a 12V circuit for...
    view full answer...
  • Trailer Hitch Recommendation For A 2022 Kia Niro
    When it comes to installing a trailer hitch on your 2022 Kia Niro The Draw-Tite Trailer Hitch Receiver - Custom Fit - Class II - 1-1/4 inch # 36600 will work. The hitch has a gross towing weight up to 3,500 pounds and has a tongue weight up to 350 pounds. Your Kia Niro has a towing capacity of 2,866 pounds, so do not go over the vehicle's towing capacity. It has a bolt-on installation with no welding required. The hitch has a concealed cross tube which will have a sleeker look under your...
    view full answer...
  • Recommended Trailer Hitch For A 2022 Kia Niro EV
    When installing a trailer hitch on your 2022 Kia Niro EV The Curt Trailer Hitch Receiver - Custom Fit - Class III - 2 inch # C37BR is confirmed to fit your vehicle. Currently at this time we have not done an installation on this hitch at etrailer.com because it is a new vehicle and a newer hitch. We will have an install video soon. The hitch has a bolt-on installation with no welding required. The hitch has a gloss black powder coat finish over a protective base coat that offers superior...
    view full answer...
  • Recommended Trailer Hitch For A 2023 Kia Niro
    Per the manufacturer the Draw-Tite Trailer Hitch Receiver # 36600 is confirmed to fit your 2023 Kia Niro. The trailer hitch has a bolt-on installation and has a concealed cross tube so after installation the trailer hitch will be completely hidden besides the 2 inch receiver head. If you plan on towing a trailer you will also need the T-One wiring harness # 118749 and the Curt Towing Starter Kit # C45554. If you have any further questions please feel free to reach back out to me anytime...
    view full answer...
  • Recommended Trailer Hitch For A 2023 Kia Niro PHEV I purchased a Curt hitch from you 4 years
    The Curt Trailer Hitch Receiver # C77NR just became available and at this current time we have not had the chance to install it onto a 2023 Kia Niro PHEV. So at this current time we do not have an installation video. We more than likely will have one further down the road. But per Curt the hitch is confirmed to fit. Per the instructions it states that on gas models, you will need to lower the canister on the driver side as well as the exhaust by removing the two nuts and the one bolt that...
    view full answer...
  • Will the Curt Trailer Hitch Receiver Fit a 2018 Kia Niro Hybrid
    The Curt Trailer Hitch Receiver part # C13329 is a fit for a 2018 Kia Niro Hybrid, it will not however fit PHEV or EV models. That said, the standard Hybrid models it will fit and work well for towing (if applicable) or hauling a bike rack/cargo carrier. The hitch features a simple bolt-on install with standard receiver size for use with a wide variety of accessories. Please note, if you will be towing then you'll also need the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector...
    view full answer...
  • Recommended Hitch for a 2023 Kia Niro
    The Draw-Tite Trailer Hitch item # 36600 will definitely fit your 2023 Kia Niro. This hitch is custom fit and bolts to your Kia with included hardware. It will not fit the hybrid and EV models. I really like this hitch because it tucks in right below your rear trim. The Draw-Tite Trailer Hitch item # 36600 a class I hitch with a 1-1/4" receiver. It has a 3,500 lbs towing capacity, and a 350 lbs maximum tongue weight. I have linked a couple of pictures below so you can see what this...
    view full answer...
    Image 1 for Image 2 for
  • Recommended Trailer Hitch For A 2022 Kia Niro EV
    When installing a trailer hitch on a 2022 Kia Niro EV The Curt Trailer Hitch Receiver - Custom Fit - Class III - 2 inch # C37BR is confirmed to fit your vehicle. The hitch has a concealed cross tube and has a bolt-on installation with no welding required. The hitch has a gloss black powder coat finish over a protective base coat that offers a superior rust resistance. The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118749 has a plug and play installation that plugs...
    view full answer...
  • Troubleshooting Tekonsha 4-way Harness 118749 Not Powering Trailer Lights
    I'd be happy to help troubleshoot this with you. First off you'll want to remove the electrical tape and wire nut as that is not the correct way to make the connection from the harness to the battery of the Tekonsha 4-way Harness # 118749 you linked to. Instead you'll need butt connectors # DW05745-5 to make that connection, and some crimpers such as # PTW30764 to make sure your connections don't fail like the original. Once you verify that all of those corrections are secure and correct,...
    view full answer...
  • Trailer Hitch Receiver and 4-Way Wiring Harness For a 2023 Kia Niro Hybrid LX
    For your 2023 Kia Niro LX Hybrid we offer the Curt Trailer Hitch Receiver # C77NR. This is a class III receiver with a 2" square opening for your ball mount or hitch mounted accessories. It is a custom fit unit so you will not have to drill into the frame to mount. There is some trimming required for your underbody panels which you can see in the instructions I have linked below. I recommend installing the T-One Vehicle Wiring Harness # 118749 when you install the receiver. This will...
    view full answer...
  • Do You Need a Draw Bar for the Draw-Tite Hitch On a 2021 Kia K5
    I do show the Draw-Tite Sportframe Trailer Hitch Receiver part # DT63MR as a fit for all sub-models of the 2021 Kia K5. In regards to parts needed, if you re simply using the trailer hitch for a bike rack or cargo carrier then there will be no other components aside from that particular accessory. That said, if you are using the trailer hitch for towing you will need a few other items which I have listed for you below. T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part...
    view full answer...
  • 2017 Kia Niro Hybrid Trailer Hitch Receiver and 4-Way Flat Vehicle Wiring Harness
    Yes, the Curt Trailer Hitch Receiver # C12171 is confirmed to Fit your 2017 Kia Niro Hybrid. This class II receiver has a 1-1/4" receiver tube with a weight capacity rating of 350lbs of tongue weight and 3,500lbs towing capacity. Be sure to check with your Kia dealer for your exact towing capacity and use whichever rating is lower. We also have the Class III 2" Curt Trailer Hitch Receiver # C13329 that is confirmed to fit your Niro. The larger receiver will give you a larger selection...
    view full answer...
  • Trailer Hitch Receiver & Wiring Harness For 2017 Kia Niro For Towing U-Haul Trailer
    We can get your 2017 Kia Niro set up with a trailer hitch receiver, wiring harness and rest of the parts needed so you can safely tow a small trailer for your move. The hitch does not come with the harness, ball mount, or hitch ball, but I can tell you exactly what you will need, including the Curt hitch you mentioned. - Curt Trailer Hitch Receiver # C13329 - Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118749 - Draw-Tite Ball Mount - 6-3/4" Rise, 8" Drop...
    view full answer...
  • 2019 Kia Niro Ex Hitch Recommendation
    I checked with Curt and the Curt Trailer Hitch Receiver # C13329 is a confirmed fit for the non-PHEV version of the 2019 Kia Niro like what you have so this would work well for you. It's a Class III hitch with a 2 inch opening and has a concealed crosstube so it's less visible than other hitches. If you need trailer wiring too we have the T-One kit part # 118749 would be what I recommend. It's a custom fit that won't require any splicing and it has the most reliable converter box of all...
    view full answer...
    Image 1 for
  • Trailer Hitch Receiver and 4-Way Flat Harness Confirmed To Fit a 2022 Kia Niro EV
    Yes, the T-One Vehicle Wiring Harness # 118749 has been confirmed to work on your 2022 Kia Niro EV. This will give you a 4-way flat connector for use on most small trailers, and will also allow you to use Auxiliary Lights # C53201 with any hitch mounted accessory that impairs the view of your tail lights. The Draw-Tite Trailer Hitch Receiver # 36600 is the class II receiver we have that is also confirmed to fit your Niro. Draw-Tite recommends using the Ball Mount # 36071 with either a...
    view full answer...
  • Trailer Hitch and Bike Rack Recommendation for a 2022 Kia Niro (Non Plug-In Hybrid or EV)
    I recommend using the etrailer Trailer Hitch Receiver # e33AR for your 2022 Kia Niro because it has the hidden crosstube and matte black finish so you get a great looking hitch that's also more durable than the standard glossy black finish. If you don't already have a bike rack I highly recommend checking out the Kuat Piston Pro X Bike Rack # KU98VR. This rack is a premium option as the tilting/folding functions are easy to use and the ratcheting arms with hydro-pneumatic pistons make...
    view full answer...
  • Trailer Hitch Receiver and Wiring Harness For a 2023 Kia Niro For Carrying a Bike Rack
    The installation of the Draw-Tite Trailer Hitch Receiver # 36600 will not require any drilling to install on the frame of your 2023 Kia Niro. You will have to trim portions of the under body panels to fit the hitch. I have linked the installation instructions below so you can see what panels need trimmed. I recommend installing the T-One Vehicle Wiring Harness # 118749 when you install the receiver. This will give you a 4-way connection allowing you to use Auxiliary Lights # C53201 with...
    view full answer...

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Info for this part was:

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Expert Research:
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Employee Jameson C
Expert Research:
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Employee Lindsey S
Edited by:
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Employee Joshua S
Video by:
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Employee Jacob H
Video by:
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