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

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

Retail:$76.74
Our Price: $47.15
You Save: 39%
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 C56217 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 (1016)
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CURT Custom Fit Vehicle Wiring

  • 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. 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
    • Tow harness with 4-way connector plugs into connection point in rear cargo area
  • 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 interior trim panel in your rear cargo area. 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 in an out-of-the-way location within your 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.


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.



56217 CURT T-Connector - Surface Mount Technology - 4 Wire

Replaces 56034

Item # C56217

Installation Details C56217 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56217

Average Customer Rating:  4.8 out of 5 stars   (1016 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 website gave me the perfect fit for our Highlander. Shipping was fast and arrived on time. Installation was a breeze with the hitch and wiring harness. Great overall experience. FYI…I installed this entire system by myself in under an hour.

Joshua

6/12/2023

Works perfect

Etrailer Expert

Mike L.

9/6/2023

@Joshua Awesome, we're glad to hear that!


by:

This is my second order with etrailer. Both experiences with your company have been very positive. The knowledge and friendliness -along with following up on orders and satisfaction have been much appreciated. Brittany, the customer representative, is a huge asset to etrailer.



by:

Quality trailer wiring harness at a fair price with good pictorial install instructions.



by:
2009 Toyota Highlander

Everything plugged in and worked well. The only reason it's not a 5 star review is because they didn't include the nut needed to secure the ground to the vehicle, and I unfortunately didn't have a nut that would work on-hand, so I had to waste an hour driving to the nearest hardware store to get an $0.18 nut that should have been included in the package.

If you're not sure what I'm referring to, in the video you'll see the ground wire typically connects to an existing bolt that sticks out under your dash. If you live far from a hardware store, you might first see if you have a nut on-hand that'll fit on that ground bolt, or put that on your list to buy the next time you're in town.



by:
Pontiac Trans Sport Van

Have not installed the hitch yet. Will be used for a bike rack and for a cargo carrier to transport a surf fishing cart to the beach. Hitch is well made but rather heavy. The order came earlier than expected which I appreciated.



by:

Good service, delivery and communication.
Connector
head was wider than the drain hole. Had to shave off edges.
Works well and would purchase again.



by:

It was very easy and quick to install with the help of the step by step online video at the etrailer.com website



by:
2019 Toyota Highlander

Very easy installation and it works great. I would suggest using etrailer's installation video rather than the printed instructions.



by:

The connector was easy to install after watching the video, and worked well after installation. The whole install and check out only took 30 minutes



by:

Great products. Install guides were well written and I couldn’t be more pleased with my whole “etrailer” experience. Thank you very much.



by:

I appreciate the assistance given me by the personnel at etrailer. They have always been very courteous and helpful. Would not hesitate to buy from them again. Thanks!



by:

It was a very easy installation, everything needed was in the box.



by:
2019 Toyota Highlander

I have a 2019 Highlander and the installation went very well. I bought the Drawtite hitch with the mounting bracket for my wiring plug, so I wanted my wires to go under the vehicle and not through the rear door. Once I removed the trays from the back of the vehicle, there was a rubber plug in the corner that could be removed that allowed access under the vehicle. I decided to use my box knife to cut a slit in the rubber plug. I had to cut my wiring harness across the 4 wires to run them through the rubber plug. I crimped them back together as seen in the photo. I used zip ties under the vehicle and inside the back to clean things up.

Etrailer Expert

Mike L.

1/28/2019

Nice job on the install! I would make one recommendation.. Id use some silicone to seal the hole in the grommet where the wire passes through to prevent moisture or exhaust gasses from entering the passenger cabin.



by:
2018 Toyota Highlander

Fast service, arrived prompts. Product is as advertised ( I have to mount it), but Do not see any problems. Should fit as video suggested



by:

Fast and easy install for 2019 Highland er



by:
2016 Toyota Highlander

Shipping was prompt. Arrival was without damage. Instructions were clear and easy to follow. Installation time was about an hour as the instructions predicted. The fit was perfect! The qualtiy seems good and the hitch looks good on my vehicle!

Tom D.

9/17/2018

Excellent..no problems!



by:

Everything went well during hitch install. However, the wiring harness instructions did not clearly identify exactly where the extra fuse goes. Nor does the included 10 amp fuse match the rating in the fusebox, which states 30 amp. So ... will need to wait and see if it works. Great looking trailer hitch!



by:
2017 Toyota Highlander

I just received the trailer hitch and the wiring harness about 2 hours ago. So I really can't read it yet. But reviewing the YouTube how to install them I believe I am going to be very very happy



by:
2016 Toyota Highlander

I was extremely happy with the etrailer hitch, l had a little problem installing the hitch because l had one bolt hole that did not line up, l did not have a vise to hold the the hitch in place move it a few inches however l did have a come along l was able to loosen two of the bolt attach the hook from the come along and ratchet the hitch bolt hole a few inches until it aligned with the hole on the truck body. I was able to screw in the bolt. The hitch looks great.l highly recommend etrailer for any towing needs



by:
2008 Toyota Highlander

This wiring harness fit my 2008 Toyota Highlander Sport perfectly! It's very easy to install, especially if you watch the installation tutorial video. It's literally plug and play. Everything you need comes with it, including the fuse and zip ties to hold everything in place. The only hard part for me was getting under the dash and tucking everything away neatly, but that's because I'm a big guy and there's not much room down there. I ran mine to the outside of the vehicle to the hitch and installed it in a mounting bracket instead of leaving the harness inside the car and pulling it out every time I need to use it. There was an extra hole that had a rubber plug in it near the tail light area where the connector for the harness is. I took the rubber plug out and ran the wiring to the hitch. I filled the hole with silicone caulking on the inside and outside to prevent any water from getting in. I also wrapped all of my connections with electrical tape. The four way has a dust cap to protect the pins from dirt and debris when not in use. I installed it on the hitch using the mounting bracket (item 18144) here: https://www.etrailer.com/p-18144.html . Looks great! I tested my connections and everything works perfectly! Great product, great price, and you save a ton of money on installation by doing it yourself! Thanks, etrailer.com, for the great tutorial and product research!



by:

15 mins and harness was in and trim put back in place. Very happy with video from etrailer on install. Super easy plug and play. So simple thanks to you guys. Saved at least $200 doing harness and hitch by myself. Thank etrailer

Chris

5/1/2023

Holding up very well after being on for a year



by:
2011 Toyota Highlander

The customer service, as others have mentioned, is amazing. From the initial order confirmation through product install, they were very helpful. My hitch arrived bent and after a brief call to Bill in customer service, I was up and running in NO time. The online videos were super helpful, thanks!!

Joe M.

5/18/2015

Thanks for the follow up!It?s awesome. Works like a charm!A friend gave me some advice that sadly I didn?t listen to though. He told me, ALWAYS remove the ball hitch when not in use. That way when you walk around the back with groceries you didn?t hit the hitch with your shin! lol Sadly last week, after a year, i had my first encounter with the hitch while carrying groceries! lol Hopefully it?s my last.



by:
2010 Toyota Highlander

Hitch arrived w/in a week of placing the order, free delivery! Box was slightly banged up, but hitch was not damaged at all. Please note there is no interior packaging around the hitch. This was a self-install, one man job. Hint: watch the etrailer videos & other videos online as this will help a lot. I had no issues w/fitting the hitch but one of the tips I did use, was to reuse the box the hitch shipped in as support for the hitch during installation. I also used a scissor jack for final mounting to line up all bolts. I tightened to the recommended torque and was VERY pleased w/the final outcome. Passenger side under panel trim did not need trimming, drivers side did require a cutout but you can trim this smaller than the instructions detailed. Hitch looks great on my 2010 Toyota Highlander! Ordering from etrailer was easy & I would do so again, if needed.



by:

Easy set up



by:
2018 Toyota Highlander

Today I installed:
- Draw-Tite Max-Frame
Trailer Hitch Receiver (Item #76156)
- Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector (Item #C56217)
- 7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires (Item #ETBC7L)

It took about 4 hrs at an amateur pace with manual tools.

This is the second time I put a trailer hitch receiver on a Toyota Highlander. My first installation was a Curt on a 2010 Highlander. This time I got the Draw-Tite for my 2018 Highlander.

Few observations:
- The fact that the car comes pre-wired and with welded nuts for the hitch makes the installation smooth and easy. Nicely done by Toyota.
- The Draw-Tite hitch receiver is NOT designed for use with weight distributing hitch, which may be an issue for some users.
- I like the that the hitch is nicely hidden under the rear bumper and comes with the bracket for trailer electric connector. Keeps things nice and tidy.
- The installation can be done by one person (with the aid of a couple of plastic buckets), but I STRONGLY recommend to have a helper. The hitch receiver is heavy and if you drop it can cause some serious damage to your body.
- There is no need to remove the passenger side plastic mud cover behind the rear wheel.
- There is a good reason why they don't show you the cutting and installation of the driver side mud cover in the etrailer videos. It's the proverbial PITA. :-)
- The receiver ends-up about 16" from the ground (with the car unloaded), so you will need a 2-3" rise ball mount to end around 17-18" once the trailer is hooked up.
- The cables can be routed nicely through an existing hole under the driver side plastic storage bin. It comes with a rubber plug which can be cut just enough to lush the connector through. This is the cable routing for OEM Toyota trailer cables. And because is it hidden under the plastic mud cover, you don't have to worry water getting in when driving on a rainy day.
- Make sure to protect the cables with a plastic hose or by wrapping them with plenty of insulating tape to prevent chaffing in the places where the cables cross hitch members. Some edges can be sharp and sooner or later will cut through the insulation.
- Trailer wiring and the T-connector are power all the time, regardless of if the key is in the ignition or not. So make sure to unplug your trailer when parked for extended period of time to prevent running down the battery. The T-connector itself draws only about 1 mA when idle, so you don't have to worry as long as the trailer is not connected.
- The fact that you can see the hitch with the rear view camera makes hooking up the trailer a breeze by just person.

Overall, I'm happy with the product.

And etrailer customer services and prompt shipping was, as always, 5-stars. (I am a returning customer)


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Show More Reviews

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

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    Thank you for your purchase directly from etrailer.com for your 2019 Toyota Highlander of the Curt Trailer Hitch Receiver # C13394 and Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56217. As for your question, you do not need to purchase a separate 30 amp fuse and only need to use the provided 10-amp ATC fuse.
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    I would be happy to help! The Curt T-Connector Vehicle Wiring Harness # C56217 you were looking at installs in your 2021 Lexus RX 350 the exact same way as it would get installed in a Toyota Highlander which is why the instruction manual only shows the install being on the Highlander. There is not a specific instruction manual that shows the install in your RX 350, but at the bottom of the included instructions in the 2014+ section that will be what you need to follow. The picture you...
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    I went ahead and did some investigating and it turns out that the reason your Curt T-Connector Vehicle Wiring Harness for Factory Tow Package # 56083 is not working is due to the fact that you do not have the factory towing package. Instead, you're going to want to use the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56217, as # 56083 was designed to be used with vehicles that have the factory towing package. This would be the workaround to taking your...
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  • Troubleshooting Installation of Tow Ready Wiring Harness on 2016 Toyota Highlander
    The Curt Wiring Harness # C56217 does have an external ground for the converter box harness that would need to be grounded to the vehicle's sheet metal. However, when I checked your order, you ordered the Tow Ready Wiring Harness # 118449 and this wiring harness does not have a ground wire that needs to be grounded separately. To begin troubleshooting, I recommend using a circuit tester, # PTW2993, to test the 4-Way connector of the # 118449 harness. I've attached a video showing how...
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  • Is a Brake Controller Required for a 2014 Toyota Highlander Pulling a 16ft Airstream Trailer
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  • Determining Correct Trailer Wiring Harness for 2014 Toyota Highlander
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  • Recommended Trailer Hitch and Trailer Wiring Harness for 2012 Lexus RX450h
    A Lexus dealer should be able to tell you how the vehicle's equipped if you provided them with the VIN. You can also determine this for yourself using a circuit tester like part # PTW2993 on the trailer wiring connector located behind the bumper under the driver's side of the vehicle at the rear (see provided photo). Have a helper activate each turn signal function as you probe the pins in the connector under the vehicle. If the plug is active, all you'll need is the # 118252. If it's not...
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  • Troubleshooting Trailer Wiring Harness # C56217 on 2011 Toyota Highlander
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  • Can Curt T-Connector # C56217 be Routed to Outside of 2015 Toyota Highlander
    The Curt T-Connector Vehicle Wiring Harness # C56217 referenced in your question is confirmed to fit your 2015 Toyota Highlander. The harness will plug into factory ports that are located behind the interior trim panel in the rear cargo carrier. While we find that it's easier to leave the wiring in the cargo area, it may be possible to route the wiring under the vehicle and over to the trailer hitch. If there is a nearby grommet that allows access to the outside of the vehicle, you will...
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  • Wireless Controller Needed for Towing with a 2018 Toyota Highlander
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  • How to Determine if a 2012 Toyota Highlander has a Factory Tow Package
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  • Trailer Wiring Harness Connection Location Under the Dash of a 2008 Toyota Highlander Limited
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  • Activating the Curt Trailer Wiring Harness for a 2008 Toyota Highlander
    For the Curt wiring harness, # C56217, for a 2008 Toyota Highlander, the harness itself has an inline fuse with the fuse already inserted. You can check that fuse to make sure that it is in place and not blown. There is also a 10 amp mini fuse that needs to be installed in the power distribution box under the hood. This amp goes in position 30 in the fuse panel as indicated in the instructions I have linked. With the fuses in place the harness should work properly. If it does not, consult...
    view full answer...
  • Where is the Underdash Connector to Install Curt Wiring Harness # C56217 in 2014 Toyota Highlander
    The connection point for the 4-way tow harness is located behind the driver's-side interior trim panel in your rear cargo area. The ModuLite plugs into the factory wiring harness beneath your dash, on the driver's side. Once you've plugged in the ModuLite, locate the "towing fuse" position in your fuse box and insert the included 10-amp fuse. Once installation is complete, the 4-way flat connector will be stowed in an out-of-the-way location within your cargo area.
    view full answer...
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  • Will Curt Hitch part # 87660 Fit a 2016 Toyota Highlander with a Full Size Spare
    Curt trailer hitch # C13200 is compatible with the full size spare tire on the 2015 Toyota Highlander. When raising or lowering the spare though you will need to angle it some to clear the hitch instead of just straight up or down. As long as the spare tire cover is a factory option the Curt hitch will fit it and work fine. This hitch also comes with all needed install hardware. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with...
    view full answer...


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