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  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 # TK77VR
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Retail:$140.39
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Custom Fit Vehicle Wiring

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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 TK77VR or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price 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 (6)
  • Q & A (0)
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  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - TK77VR

  • 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
    • 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 your rear cargo area. You will need to partially remove the plastic threshold cover, side panels, and cargo trays to access the 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 beneath your vehicle, near the trailer hitch. 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 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.



118830 Tow Ready T-1 T-Connector - 4 Wire - Modu-Lite

Installation Details TK77VR Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - TK77VR

Average Customer Rating:  4.8 out of 5 stars   (6 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:
2021 Toyota Venza

Trailer wiring kit for my 2021 Venza fit and works fine as promised
Ron




by:
2021 Toyota Venza

When exactly is the instruction set no fuss no muss took me about an hour




by:




by:
2021 Toyota Venza




by:




by:
2021 Toyota Venza



6
6

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



  • Trailer Wiring that Fits 2021 Toyota Venza Hybrid
    We have trailer wiring solutions that fit your 2021 Toyota Venza Hybrid with the Tekonsha trailer wiring harness # TK77VR.
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  • Trailer Wiring Recommendation for 2021 Toyota Venza Hybrid
    The Tekonsha trailer wiring harness part # TK77VR is a confirmed fit for your 2021 Toyota Venza Hybrid and would be what I recommend as it has the most reliable converter box and is also very easy to install.
    view full answer...
  • Why is Hitch Made for 2022 Toyota Venza Hybrid if Manufacturer Says No Towing
    I pulled up the online owners manual of your 2022 Toyota Venza and Toyota states that it is not recommended to tow with your vehicle which is why they also do not list a towing capacity. So this begs the very valid question of why do we have hitches that fit your vehicle like the Curt # C89UR that you referenced which fits the hybrid models. The answer is that against manufacturer advice many people will still use the vehicle for towing or carrying bike racks so since there is a demand...
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  • Recommended Trailer Wiring Harness for a 2021 Toyota Venza
    The trailer wiring harness I recommend for a 2021 Toyota Venza is the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # TK77VR which is a direct plug-in-play fit with no splicing required. The kit has everything you need and comes with a 4-way connector which is most common and likely the one you'll need. If you don't already have a trailer hitch picked out yet, I recommend the etrailer Trailer Hitch Receiver part # e25AR which is a bolt-on fit.
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  • Will the Backup Camera Still Work After Installing Curt C89UR on 2021 Toyota Venza
    The Curt Trailer Hitch Receiver # C89UR will not interfere with the backup camera on your 2021 Toyota Venza. The camera is located just above the license plate on the rear of your vehicle, and the hitch mounts below the rear bumper. I have attached a picture below showing the receiver tube below the bumper. Based on this picture you wouldn't even be able to see it on the backup camera. The # C89UR is a custom fit Class III hitch with a 2" receiver. It has a concealed cross tube so only...
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  • What 4-Way and 7-Way Harness do You Recommend for My 2022 Toyota Venza?
    For a great-quality 4-way harness that fits your 2022 Toyota Venza, I recommend the T-One Vehicle Connector # TK77VR. This harness comes with a better converter box than the competitor Curt T-Connectors. With the T-One, your trailer receives basic tail light, turn signal, and brake light functions. Once the 4-way is installed, you are ready to install the 7-way. For that harness, you need the Universal Installation Kit for Trailer Brake Controller # ETBC7. With this kit, you prep your...
    view full answer...
  • Recommended Hitch for a 2022 Toyota Venza
    The hitch that I recommend for your 2022 Toyota Venza is the Curt Trailer Hitch Receiver # C89UR. This hitch is made in the USA, has a bolt-on, no-drill installation and will provide you with a 2" hitch receiver which 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 pick up the T-One Vehicle Wiring Harness # TK77VR and the etrailer Ball Mount Kit # 989900 to round out a tow package.
    view full answer...
  • How Much Does the Curt Trailer Hitch Receiver # C89UR Weigh that Fits a 2021 Toyota Venza?
    The Curt Trailer Hitch Receiver # C89UR for your 2021 Toyota Venza weighs only 28lbs. While it is light enough for one person to maneuver a 2nd set of hands is very helpful in lining up the receiver during installation. I have linked and installation video below that should help you with any installation questions you may have. I do recommend installing the Tekonsha T-One Vehicle Wiring Harness # TK77VR when you install the receiver. This 4-way connector is needed if you plan to tow small...
    view full answer...
  • Custom Fit Hitch Receiver for a 2022 Toyota Venza
    I did some research and the CU89FR Curt Trailer Hitch Receiver item # C67JR fits a 2020 - 2022 Subaru Legacy and a 2020 - 2022 Subaru Outback Wagon. It will not fit a Toyota Venza. For your 2022 Toyota Venza you will want the Curt Trailer Hitch Receiver item # C89UR. I have linked an installation video below. If you need a wiring harness I recommend the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item # TK77VR. This custom-fit T-One connector plugs into your...
    view full answer...
  • What Hitch, Wiring, and Brake Controller do You Recommend for a 2022 Toyota Venza?
    For the best hitch option we carry for your 2022 Toyota Venza, I recommend going with the Curt Hitch - 2" # C89UR. Not only does it come with the easiest installation process out of the hitches we have, it also comes with a superior outer gloss coater over the base powder coat that provides more resistance against rust and corrosion than the Draw-Tite and etrailer option. It comes with all required installation hardware for a bolt-on installation. As far as wiring, you need both a 4-way...
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  • What Hitch Fits My 2021 Toyota Venza Limited Hybrid Model?
    We definitely carry what you are looking for! For a great hitch that fits your 2021 Toyota Venza Limited Hybrid, I recommend the Curt Trailer Hitch Receiver - Custom Fit - 2" # C89UR. Not only does the Curt hitch involve an easier installation than the competitor Draw-Tite Hitch # DT46MR, it also comes with a superior gloss coating over the base powder coat to provide you with greater protection against rust and corrosion. To add a cherry on top, the hitch is manufactured here in the U.S.A....
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  • Towing Package For A 2021 Toyota Venza
    When it comes to installing a trailer harness on your vehicle you will have to start out with a 4-flat harness at first, but you can make it into a 7 round plug with additional items. The T-One Vehicle Wiring Harness # TK77VR will give you a 4-flat plug. Using this harness will make it to where your trailer's stop, turn, and taillights mirror your vehicle's stop, turn, and taillights. This harness will plug into your vehicle's wiring harness which is located in the rear cargo area. When...
    view full answer...

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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 Mike S
Written by:
Mike S

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