T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
(66 reviews)
Price: $71.56
In Stock
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Item # 118683
Our Price: $71.56
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- All Info
- Reviews (66)
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Tekonsha Custom Fit Vehicle Wiring - 118683
- 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 in rear cargo area
- Plug in T-connector
- Connect hot lead to power cable stud
- 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, behind the tail lights on both the driver's side and passenger's side. You will have to remove some interior paneling to access this harness. Once you've plugged in the T-connector, run the hot lead to the power cable stud on the driver's side and connect the wire using the ring terminal. Then insert the included 15-amp fuse into the fuse holder.
Once installation is complete, the 4-way connector will be stowed in your trunk.
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.
118683 Tekonsha T-1 T-Connector - 4 Wire - Modu-Lite Converter Included
Installation Details
This Product Fits The Following Vehicles
- 2020 - 2021 Volvo S90
- 2017 - 2022 Volvo S90
- 2016 - 2024 Volvo XC90
- 2016 - 2024 Volvo XC90
- 2021 - 2024 Volvo XC90 Recharge
- 2021 - 2024 Volvo XC90 Recharge
California residents: click here
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
- Wrong item was ordered
- Product did not meet expectations
- Did not arrive in time
Customer Reviews
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118683
Average Customer Rating: 4.9 out of 5 stars (66 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: Ken -05/11/2024
2022 Volvo XC90
It’s my experience that installing wiring harnesses takes much longer than advertised if you want to complete a more “finished” installation. That is not the fault of the product, but a choice by the installer. This T-One wiring harness came with all of the components necessary for an installation on a 2022 Volvo XC90 T6 Inscription. It is really just plug and play. The hardest part is getting access to the locations to make the easy connections. Be prepared to remove interior finish panels, or find someone with long, thin, and flexible arms (!!!).
I can highly recommend this product.
by: Doug01/23/2024
Volvo
Bought the harness to wire my volvo to pull a small trailer.
Installed easily and works well.
by: Warren06/10/2019
2019 Volvo XC90
I have a 2019 Volvo XC 90. It took about 2 hours to install The Drawtite hitch and taillight kit. Taillights worked perfectly. No programming the cars computer. Total price etrailer: less than $300. Volvo wanted $1,600.
etrailers sales person: home run. Very nice.
by: Jim12/04/2023
2023 Volvo XC90
Installed easy and quickly, only problem was dripping the grounding screw. Could be my 77 year old fingers.
by: Jim05/04/2019
Volvo
The directions are OK except you have to remove the "threshold" before you can remove the side panels. Also there is a little cap over the anchors that has to be removed to gain access to the hold down bolt. The battery on a Volvo 2019 is not in the engine compartment, but under the spare tire. Much easier to tie into.
by: Dominick 01/04/2024
2016 Volvo XC90
Quality product and great customer serv ice!!!!
by: Michael 02/19/2023
Install was pretty straight forward. Like the ability to store the connector as I don't use it often.
by: Nicholas03/12/2018
2016 Volvo XC90
This was incredibly easy to install with the online video. The wires were all plenty long enough which is where a lot of companies cut corners since copper is very expensive. Thanks for selling a great product, it is appreciated.
by: David M10/18/2019
2019 Volvo XC90
everything worked perfectly, i was very happy with how easy this was to install and how well it worked. it did not mess with any of my car sensors or anything so i am very please. i would totally buy again if needed. directions could be a bit better in the box but youtube had some quick and easy help to make it work well.
David M.
10/20/2020
works perfectly on our 2019 Volvo xc90, i am very happy with it.
by: Gil08/23/2019
2017 Volvo XC90
Frankly working with etrailer is as easy as working with [online retailer], the one big difference is the personal interaction and the review/installation videos. I installed the wiring on my wife's Volvo just by watching the video and I am NOT mechanical in any way.
etrailer runs the way, I run my business. Customer-centric, communicative and attention to detail.
Well done!!
by: Jeffrey08/20/2021
Be careful loosening the bolt to the negative battery terminal. The little box connected to the negative cable is only soldered or brazed together and while loosening the nut mine broke in half, rendering my car undrivable. Of course in the video, the nut is very easy to get off and there is no mention of the fact this piece can break.
I'm also not sure why the loop connector doesn't fit the battery terminal when this harness is supposedly made for the vehicle.
by: Jason T07/18/2017
2016 Volvo XC90
The wiring fits perfectly and is easy to install. I would have given 5 stars if the instructions were easier to read/see. I couldn't even tell what the pictures were because the quality was so bad. I had to take interior panels off and feel around to find where the plugs were.
by: Robbie 05/02/2023
The order was received on time and in excellent condition.
by: Mike Z.08/19/2022
Installed myself. Good video instruction! Perfect fit!
by: Jhf02/13/2020
Fairly price, clear instructions for the type of vehicle, easy to install. I used it with a to light up several different trailers with no issues
by: CRives07/01/2021
This is an excellent product and the customer service for install is great. I will only use etrailer in the future.
by: Michael02/09/2021
Shipped before anticipated date. Arrived when projected after shipment. etrailer delivered to what they said.
by: James06/11/2020
Good price and high quality product. Install was very straightforward with the detailed videos at etrailer. Saved over $1000 versus dealer install!
by: Andrew04/13/2022
I went to use it after a winter of not using it and all the lights on my trailer worked perfectly. I had a garage install it for me.
by: Patrick03/25/2022
Great product and fairly easy installat ion.
by: Robert03/23/2022
Easy to put on my car. Accurate instructions with all parts as required. Thanks
by: John 07/01/2021
Easy installation! Worked excellent
by: Joseph 04/28/2020
Went in just as the instructions descri bed.
by: Douglas 09/25/2021
The installation video was spot on! Super straightforward.
by: Brad05/16/2019
Jason was very professional and helped me addd additional items to my order. The items arrived in two days as promised in great condition.
I’ll know more about the hitch when I install it.
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66
Show More Reviews
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Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Edited by:
Lindsey S
Video Edited:
Joshua S
Video Edited:
Jacob T
Video by:
Kathleen M
Video by:
Dustin K
Video by:
Chris R
Installed by:
Cole B
Updated by:
Wilson B
Updated by:
Isabelle B
Written by:
Alexander C
Test Fit:
Robert C
Test Fit:
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Test Fit:
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Nicholas
3/14/2019
Thanks for asking. I’ve only towed a small garden trailer a few times so far but I wouldn’t hesitate to haul a max load across the country and back. The Volvo suv the hitch is on stays garaged so I can’t give good feedback on how it would hold up in a salty slushy winter. Luckily we are in Georgia. : This was the third hitch I have installed on my vehicles and each one was perfect. If I end up needing another hitch I will be back. Thanks, have a nice day.