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Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
CURT

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

Part Number: C76CR
In Stock
$74.06
Retail:$111.95
You Save: 34%
Custom Fit Vehicle Wiring

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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. 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 C76CR 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 with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (21)
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CURT Custom Fit Vehicle Wiring - C76CR

  • 4 Flat
  • Trailer Hitch Wiring
  • CURT

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. 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
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection points behind tail lights
  • 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
  • 1-Year limited warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness. The connection point for the 4-way tow harness is located behind the rear driver's-side and passenger's-side tail lights. Once you've plugged in the converter, insert the included 10-amp fuse into the integrated fuse holder.


Once installation is complete, the 4-way 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.


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.



56452 CURT T-Connector - Surface Mount Technology - 4 Wire

Installation Details C76CR Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C76CR

Average Customer Rating:  4.6 out of 5 stars   (21 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.

by:

The wiring fit perfectly and the instructions were good

Arnold profile picture

Arnold

7/7/2023

Great



by:
2020 Toyota Highlander

The harness is very good quality and the actual connections area snap but getting to the connectors behind the tail lights was not easy for me. There are no videos made yet for the 2020 and 2021 highlander installation and the instructions are not comprehensive on the body panel separation needed at the tail lights to get to the connectors. I was concerned that I was going break something. I did two additional things for my installation also. First I enclosed the wire from the battery in a 3/8 plastic wire loom slit tubing for added protection, and secondly, I did not use the crimp connectors that came with the kit but soldered and heat shrunk those connections instead. I also put a drop of solder on the pre made white ground wire connector. I made sure all the wiring was secured with zip ties as best as possible wherever I could get to it. It’s not difficult per say to install this kit but it was time consuming for me and a bit nerve racking behind the taillights. Final result: works great!



by:
2021 Toyota Highlander

I wish I had bought a towing package with my new Highlander regardless of the cost. Then it would have been plug and play and no concern. I routed the wiring to the best of my ability to hug the bottom of the car but know that if I ever drive off the pavement (and I use my car for everything) there is the risk of something snagging the power wire. I also found regular butt connectors vs heat shrink sort of cheesy - did not use. Was also very nervous in removing tail lights and re-installing. Only takes one break of something to wish you had never gone this route.



by:
Toyota Highlander

This Curt T-Connector wiring harness was relatively easy to install on my 2020 Highlander. I tried the behind-the-taillight version and it was a no-go. After a year of use I haven't had any problems.



by:
2021 Toyota Highlander

Excellent customer service, great pricing and on time delivery.
Very easy install on my 2021 Toyota Highlander .
Highly recommend purchasing products from etrailer.com

Thanks again etrailer



by:

Products (Hitches ) are excellent, very easy to install,(even without directions. Videos sure were helpful too. Great,quick response from your employees. Sure beats the dealers in explanations and prices. WILL DEINITELY USE AGAIN.



by:

I have done business with E-Trailer a lot in the past and as always I received Excellent customer service. The products is as advertised with the best price I could find.



by:

Everything I needed was in the kit and has been working great since installed.



by:

It doesn't fit my vehicle, I ended up paying shipping to send it back and paying shipping to get the right part.



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by:

Easy -up and it works the way it should.



by:

It fit perfectly



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Looks great on our vehicle



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2020 Toyota Highlander



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2020 Toyota Highlander



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

  • Does Installation of Trailer Wiring Harness on 2020 Toyota Highlander Void Vehicle Warranty
    Good question, and the installation of any aftermarket parts such as a trailer wiring harness will not void the warranty on your 2020 Toyota Highlander Hybrid, or any other vehicle. The reason for that is because you are protected by what is called the Federal Magnusson-Moss Warranty Act. This act says if something breaks on your vehicle and you take it in for warranty repair, the dealer must honor your warranty unless whatever you have added to your vehicle or its installation actually...
    view full answer...
  • Most Concealed Hitch for a 2022 Toyota Highlander Limited
    The most hidden hitch for your 2022 Toyota Highlander Limited is going to be the Curt Trailer Hitch item # C99FR. The Curt hides the crosstube behind the bumper so all you see is the receiver tube opening and safety chain loops. This hitch is custom fit and bolts to your Highlander with included hardware. I have attached a picture below so you can see what this hitch looks like once installed. The wiring harness you will want is the Curt Wiring Harness with 4-Pole Flat Trailer Connector...
    view full answer...
    Image 1 for
  • Recommended Trailer Hitch for a 2021 Toyota Highlander Platinum Model
    For your 2021 Toyota Highlander Platinum, I recommend the Curt Trailer Hitch item # C99FR which has a hidden crosstube for a sleek install look and a welded-on trailer connector mounting bracket for convivence. This hitch is custom fit and bolts directly to your Highlander with included hardware. To tow with this hitch you will also need a wiring harness item # C76CR for a 4-way and item # TK57VR for a 7-Way and a ball mount and ball item # C45534.
    view full answer...
  • 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 # C56RV 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...
    view full answer...
    Image 1 for
  • Recommended Mounting Bracket 4-Pole Flat Connector to etrailer Trailer Hitch Receiver
    I recommend using the Mounting Bracket 4-Pole Flat, # 18144 to affix your 4-Pole Flat connector of the Curt T-Connector Vehicle Wiring Harness, # C76CR to the etrailer Trailer Hitch Receiver, # e75ZR. Please note the linked video below.
    view full answer...
  • Need Hitch And Wiring For A 2020 Toyota Highlander Limited AWD
    Hello Geoffrey. For your 2020 Toyota Highlander Limited AWD I recommend the etrailer Class 3 Hitch # e75ZR. This hitch will be compatible with your T165/90D18 temporary tire. Anything larger than an 18" wheel would not fit, but you will be able to continue to store your spare under the vehicle with this hitch installed. As far as the kick sensor, the hitch may interfere with it slightly. In almost every case, the sensor will still function, it will just work a bit differently. Instead...
    view full answer...
  • Best Hitch for a 2022 Toyota Highlander
    The etrailer hitch from the 2018 Toyota Highlander model does not fit the 2022 Highlanders. You will need the Curt Trailer Hitch item # C99FR. This hitch is custom fit to your 2022 Highlander and bolts directly to the frame with included hardware. If you need a wiring harness to control your trailer or accessory's lighting functions you will want the Curt Wiring Harness with 4-Pole Flat Trailer Connector item # C76CR.
    view full answer...
  • Recommended Hitch for a 2022 Toyota Highlander XLE Hybrid
    The best hitch for your 2022 Toyota Highlander XLE Hybrid is going to be the Curt item # C99FR. This hitch is custom fit and bolts directly to your Highlander with included hardware. It is confirmed to fit the Hybrid model of your Highlander. We have two options for wiring harnesses on Highlanders without the towing package depending on what you type of connector you need. The first is the Curt Wiring Harness with 4-Pole Flat Trailer Connector item # C76CR. This will provide you with...
    view full answer...
  • Troubleshooting Curt Trailer Wiring Harness Not Active at All
    If you installed the Curt harness part # C76CR on your vehicle and it's acting like it's not active that would most likely indicate that you didn't run the red wire to the battery or even more likely the fuse didn't get installed in the fuse holder. I'd check those two things.
    view full answer...
  • Hitch Install for 2020 Toyota Highlander Hybrid Regarding Fascia Trimming
    This Curt # C99FR Hitch is verified to fit your 2020 Toyota Highlander. There is some minor trimming on a plastic under body panel located underneath the vehicle between the back bumper and the spare. It is a simple procedure that most of our customers do with tin snips. The trimming is the same for Hybrid and Non-Hybrid models. I have included a link to a video showing the entire installation. At the 11:40 mark you can see the panel and the trimming. All the parts needed to install...
    view full answer...
  • Recommendations for Hitch and Wiring Harness for 2020 Toyota Highlander Limited
    I am happy to help you find the right setup to tow with your 2020 Toyota Highlander Limited. First, you need the Curt Hitch # C99FR which is a confirmed fit for all 2020 Toyota Highlander Trim types including your Limited package. Next, you need one of two wiring harnesses depending on whether or not your Highlander has a factory installed tow package. You can look under the rear bumper on the driver's side to find a quick connect (see picture below). I recommend the T-One 4 Pole Wiring...
    view full answer...
    Image 1 for
  • Troubleshooting Tekonsha Trailer Wiring TK74FR not Active on 2021 Toyota Highlander
    The # TK74FR that fits your 2021 Toyota Highlander if it had the OEM tow package does not come with the converter box needed for vehicles with the tow package, and at this time we do not offer the box separately. But we do have a different trailer wiring solution that will work with the # C76CR which plugs in behind the taillights and comes with it's own converter box. The box might be available if you checked with Toyota directly.
    view full answer...
  • Trailer Hitch and Wiring for 2020 Toyota Highlander
    Curt has their trailer hitch that fits your 2020 Toyota Highlander with the part # C99FR and then for trailer wiring the kit I would recommend is actually the Tekonsha kit part # TK99FR which installs much easier than the Curt # C76CR that fits your vehicle. But if you wanted to stick with the Curt it would work just fine.
    view full answer...
  • Best Trailer Hitch for Mounting Trailer Wiring Harness on 2021 Toyota Highlander
    For your 2021 Toyota Highlander Curt Trailer Hitch Receiver # C45CR is because it has a high towing and tongue weight capacities and cab be used with a weight distribution system if needed. The correct 4-way trailer wiring harness for your 2021 Highlander will depend on if you have the factory tow package or not. If you DO have the factory tow package you need the T-One Vehicle Wiring Harness for Factory Tow Package # TK74FR. If you DO NOT have the factory tow package you need the...
    view full answer...
  • Is The Curt Wiring Harness Item # C76CR Compatible With A 2020 Toyota Highlander
    Yes, the Curt T-Connector Vehicle Wiring Harness Item # C76CR is compatible with your 2020 Toyota Highlander. We have not installed the harness on that vehicle as of this time so we do not have a video to provide however; I have included a copy of the instructions which will also come with the harness. The instillation is not difficult and can be done with the vehicle on the ground in your driveway.
    view full answer...
  • Trailer Hitch Receiver Fit for 2020 Toyota Highlander
    You can get a Class III trailer hitch receiver for your 2020 Toyota Highlander right here, with the Curt Trailer Hitch Receiver # C99FR. This is a Class IIII, 2" hitch that also fits the Hybrid models of '20 Highlander and will be exactly what you need to tow your boat trailer; I have added a link to a video install for you to check out as well. To complete your towing setup with your Highlander you will need a trailer wiring harness, either the T-One Vehicle Wiring Harness # TK74FR if...
    view full answer...
    Image 1 for
  • Correct Trailer Hitch for a 2021 Toyota Highlander XSE
    I called Curt and confirmed the Curt Trailer Hitch Receiver part # C99FR is a fit for a 2021 Toyota Highlander XSE. The Curt Trailer Hitch Receiver part # C45CR is not a fit for XSE models. The former was redesigned for the XSE. In order to complete this setup you'll need the Curt T-Connector Vehicle Wiring Harness part # C76CR, Brake Controller Install Kit part # ETBC7L, and the Curt Echo part # C51180.
    view full answer...
  • Wiring Harness For Connecting Trailer Behind 2021 Toyota Highlander XSE Without Factory Tow Package
    The Curt T-Connector Vehicle Wiring Harness # C76CR will fit your 2021 Toyota Highlander XSE. This will give you a 4-way flat trailer connector which is the most common connector for small trailers. If you are going to be towing larger trailers which have electric brakes you will want to look at the Tekonsha # TK57VR which will include all the wiring needed to connect a Brake Controller # 90195.
    view full answer...
  • Difficulty Of Installation For etrailer Receiver Versus Draw-Tite On a 2021 Toyota Highlander Hybrid
    The etrailer Trailer Hitch Receiver # e75ZR is rated 5 out of 10 for installation difficulty, which is the same as the EcoHitch # EH35VR. They both offer hidden crosstubes for a clean look. I actually prefer the etrailer hitch # e75ZR over the EcoHitch because I like that the receiver tube is matte black so that the part that does show, blends in better than the glossy finish of the other hitches. The etrailer hitch has a 500lbs tongue weight and 5,000lb trailer weight ratings, while...
    view full answer...
  • Trailer Hitch Options for 2020 Toyota Highlander Platinum
    We do carry more than one option for the 2020 Toyota Highlander excluding XSE. We have the Curt Class III # C45CR, and my recommendation, the Class III etrailer Trailer Hitch Receiver, # e75ZR. The Class III etrailer Trailer Hitch Receiver, # e75ZR has a maximum gross trailer weight of 5,000 lbs. and a maximum tongue weight of 500 lbs. This is a bolt-on installation so no welding is required and comes complete with all needed hardware. For trailer wiring you will want the Curt T-Connector...
    view full answer...
  • Trailer Wiring for 2020 Toyota Highlander without Converter
    The # TK74FR that fits your 2020 Toyota Highlander does not come with the converter box and at this time we do not offer the box separately but we do have a different trailer wiring solution that will work with the # C76CR which plugs in behind the taillights and comes with it's own converter box.
    view full answer...
  • Recommendation Trailer Hitch 2021 Toyota Highlander XLE
    Yes, the Curt Trailer Hitch Receiver # C99FR is a confirmed fit to your 2021 Toyota Highlander, it fits all models of the Highlander so it would fit your XSE model. For trailer wiring I suggest the Curt # C76CR. This will quickly and easily install a 4-way trailer connector, this plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.
    view full answer...
  • Which Hitch is Least Likely to Interfere w/ the Lift Gate Function on a 2020 Toyota Highlander?
    There isn't a hitch made that won't interfere somewhat with the functionality of the hands free liftgate sensor. However, the Curt Trailer Hitch item # C99FR will cause the least amount of interference from the available hitches. What we have found out from testing after the hitch is installed is you will need to kick to the left or right of the receiver to find an area where the sensor is not blocked. The reason I chose the C99FR over the other options is that only the receiver portion...
    view full answer...


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


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Written by:
Kristina F

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