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Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Item # C79VV
Retail:$121.37
Our Price: $69.24
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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 harness. T-connector plugs directly in OEM tow package port. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C79VV or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (16)
  • Q & A (0)
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CURT Custom Fit Vehicle Wiring - C79VV

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • Powered Converter
  • CURT

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly in OEM tow package port. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Designed for use with a factory tow package
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily
    • Locate connection point in rear cargo area
    • Plug in T-connector
  • Includes a tail light converter 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 using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 3 amps per circuit
    • Tail lights: 6 amps per circuit
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's factory tow package, which is located in your cargo area, on the driver's side. You will have to remove the scuff panel and the cargo holder to access this port. Once you've plugged in the T-connector, insert the included 10-amp fuse into the fuse holder.


Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your trunk.


It is recommended that you use a small amount of grease on all electrical connections - the plug on your automobile and the 4-pole connector itself - to help prevent corrosion.


Powered Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.


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 the trailer. This converter combines 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.


Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.


Curt SMT Circuit Boards

Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.


Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.



56480 CURT T-Connector - OE Replacement 4-Flat

Installation Details C79VV Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - C79VV

Average Customer Rating:  4.7 out of 5 stars   (16 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly in OEM tow package port. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.

by:

Easiest trailer wiring I have ever inst alled!



by:

No problems so far. Installation directions were clear and easy to follow. Would recommend.



by:
Toyota Highlander

The harness made the Highlander wiring connections very simple.



by:

Great service. Cammi was very helpful and polite.



by:

Directions for hitch install are spot on great fit sales staff was knowledgeable to product line.



by:

Beautiful!



by:

Easy to follow directions, very easy in stallation



by:
2021 Toyota Highlander

Super simple to install. No issues, tha nks!



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2023 Toyota Highlander



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2024 Toyota Grand Highlander



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

  • 2024 Toyota Grand Highlander Trailer Wiring Harness for No Factory Tow Package
    Since your 2024 Toyota Grand Highlander doesn't come with the factory tow package you need the Curt T-Connector Vehicle Wiring Harness # C79VV. The module plugs into that 10-Pin connector you found under the cup holder and then the 4-Way harness connects to the plug found under the driver-side rear bumper section. There will be a dust cover you need to remove prior to plugging the 4-Way harness into this connector.
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  • Parts for Installing the Curt Echo In-Line Controller on a 2024 Toyota Highlander
    Hey Danial! If your 2024 Toyota Highlander is already equipped with a 7-Way then the Curt Echo In-Line # C79DR is a pretty simple installation since it just tees into the US CAR connection behind the 7-Way, and the only other thing I really recommend picking up is the Manual Override Button # C83HR so you don't have to have your phone out to use the manual override feature. If your Highlander doesn't have any wiring connector on it then you'll need the following: - 4-Way - part # TK74FR...
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  • Trailer Wiring Harness and Hitch Recommendations for a 2023 Toyota Highlander Hybrid XLE
    I recommend going with a T-Connector wiring harness for your 2023 Toyota Highlander XLE: - With Factory Tow Package # C79VV - Without Factory Tow Package # C59496 The easiest way to determine if you have the factory tow package or not is to look at your paperwork for the vehicle and/or call in to your local Toyota dealer with your VIN and they can look it up and let you know. Aside from that the only other way I know how to determine this is to check your vehicle and see if it already...
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  • How to Tell if 2020 Toyota Highlander XLE Has Factory Tow Wiring
    The 2 easiest ways to tell if your 2020 Toyota Highlander XLE has the factory tow wiring is to either check behind the paneling next to the 3rd row seating on the driver's side to see if a connector is there that the Curt # C79VV module plugs into, or to reach out to your local Toyota dealer with your VIN and they can get that info for you. If you don't have the factory wiring then you need the Curt T-Connector Vehicle Wiring Harness # C76CR which tees in behind your tail lights and pulls...
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  • 2024 Toyota Highlander Hybrid Trailer Hitch and Wiring Recommendations
    I have the perfect parts to get your 2024 Toyota Highlander Hybrid setup for taking your bikes with you on a trip as well as moving and hauling with your trailer! The etrailer Trailer Hitch Receiver # e75ZR is my go-to brand when it comes to trailer hitches because of the matte black finish. I've had a few of these on my own vehicles and I love how the matte black is more subtle than the glossy black finish and it does a better job at hiding any scratches that might happen from road debris. Then...
    view full answer...
  • Trailer Hitch For A 2024 Toyota Highlander - Can I Use A Weight Distribution Hitch?
    We do have a trailer hitch option for the 2024 Toyota Highlander. The correct hitch is the etrailer class 3 hitch # e75ZR. Unfortunately this hitch is not rated for use with a weight distribution hitch. At this time there is no hitch available for the 2024 Highlander that will allow you to use a weight distribution hitch. This is likely because the 2024 Highlander has a unibody frame, and you cannot use weight distribution on vehicles with a unibody frame as it can damage the vehicle. The...
    view full answer...
  • 2024 Toyota Grand Highlander Correct Curt T-Connector Trailer Wiring
    Hey Barry, I've got exactly what you're looking for! The Curt T-Connector Vehicle Wiring Harness # C79VV is a fit for your 2024 Toyota Grand Highlander XLE and it gives you that 4-Way flat connector you're needing. It comes with 2 main wiring bundles that plug into your OEM wiring ports; one gives you the 4-Way connector while the other includes the wiring to activate your tow package trailer signals.
    view full answer...
  • Recommended Parts to Tow a Trailer w/ Brakes w/ a 2024 Toyota Grand Highlander
    To install a 7-Way harness on your 2024 Toyota Grand Highlander you will need two separate wiring harnesses because they don't make just one that'll do the job. The first harness you'll need is either the Curt T-One Vehicle Wiring Harness item # C59236 if you have the tow package or item # C59236 if you do not. The item # C79VV is a custom-fit T-connector that plugs into your Toyota's wiring harness, which is located in your cargo area. The Curt item # C59236 is a universal option for...
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  • Troubleshooting Brake Lights Not Working With Curt Wiring Harness on 2024 Toyota Grand Highlander
    There isn't a lot to the installation of the # C79VV so it is likely one of two things. The first is the ground connection. Double check the ground connection and make sure it is secure on a clean, bare-metal surface. The other possibility is that your connectors aren't all the way together. Go ahead and pull each apart and reconnect to make sure they are fully seated. If that doesn't fix the problem feel free to reach out and I will help you troubleshoot further. UPDATE: We have updated...
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  • Recommended Trailer Hitch and Wiring for a 2023 Toyota Highlander
    For your 2023 Toyota Highlander you can use the etrailer Trailer Hitch Receiver # e75ZR for a hitch and the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package # C79VV if you have the towing package or # C59496 if you don't have the towing package. This hitch has a 2" receiver opening, a 5,000 lbs GTW, and is made in the USA.
    view full answer...
  • Do You Have The Curt Trailer Hitch Receiver 13519 For a 2024 Toyota Grand Highlander?
    We already carry the Curt Trailer Hitch Receiver(13519) # C26VV. This is the receiver for the new 2024 Toyota Grand Highlander. If you will be towing or need Auxiliary Lights # C53201 we do have the Curt T-Connector Vehicle Wiring Harness # C79VV which will give you a 4-way flat connector.
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  • Trailer Hitch Receiver & Vehicle Wiring Harness For 2024 Toyota Grand Highlander Hybrid MAX Platinum
    We have the Curt Trailer Hitch Receiver # C26VV for your 2024 Toyota Grand Highlander Hybrid Platinum MAX. This hitch requires no drilling and will install with the included hardware into existing holes in your frame. I do recommend installing the 4-Way Wiring Harness # C79VV when you install the receiver. This way you can plug in Auxiliary Lights # C53201 with hitch mounted accessories or connect to the lights on most small trailers you might pull. If you plan on towing you will also...
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  • Recommended Hitch for a 2023 Toyota Highlander w/ the Full Size 20" Spare Tire
    The only hitch that is compatible with the full size 20" spare tire on a 2023 Toyota Highlander is the EcoHitch Hidden Trailer Hitch item # EH35VR. This hitch is custom fit and bolts to your Highlander with included hardware. This is a class III hitch with a 2" receiver. It has a 5,000 lbs towing capacity and a 750 lbs maximum tongue weight. Aside from being able to work with the full size spare, I really like this hitch because the crosstube is concealed behind the rear bumper and the...
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    Image 1 for Image 2 for
  • Parts Needed to Install 7-Way and Brake Controller 2024 Toyota Grand Highlander
    We can definitely help install a brake controller and 7-way on your 2024 Toyota Grand Highlander but first the brake controller I recommend is the Redarc Tow Pro Liberty part # RED24FR with the install harness part # RED69FR. As this controller puts only a small knob on the dash of your vehicle and works really well using an inertia sensor to sense how hard to apply the trailer brakes. If you don't get the factory 4-way you'll need to go with the Curt kit part # C79VV and then use the...
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  • Wiring Needed For Installing a Trailer Brake Controller and 7-Way on a 2024 Toyota Grand Highlander
    First you will need the Curt T-Connector Vehicle Wiring Harness # C79VV to connect to the factory wiring on your 2024 Toyota Grand Highlander. This will take care of the lighting needed for the trailer which will connect through the 7-Way Kit # ETBC7. This kit also provides you with the wiring needed to install a Trailer Brake Controller # RED52VR. You can attach the 7-Way to your Receiver # C26VV using one of the No-Drill Brackets # 18140 if you would prefer not to drill into your rear...
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  • Recommended Hitch for a 2023 Toyota Highlander XSE
    To attach a Curt hitch to your 2023 Toyota Highlander XSE you will want item # C99FR. This hitch is custom fit and bolts to your Toyota with included hardware. It is a class III hitch with a 2" receiver. I have linked an installation video below to help you get this hitch set up. Please note that the Curt item # C99FR does not work with 20" spare tires only 18" or smaller. If you have the full size spare you will need to install the EcoHitch Hidden Trailer Hitch item # EH35VR. If you...
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Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Michael B
Installed by:
Michael B
Employee Sabrina W
Written by:
Sabrina W

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