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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

Item # C56217
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Custom Fit Vehicle Wiring

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C56217 - Custom Fit Curt 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. Call 800-298-8924 to order Curt custom fit vehicle wiring part number C56217 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price 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 (492)
  • Q & A (144)
  • Videos (12)
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Curt Custom Fit Vehicle Wiring - C56217

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

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

Installation Details C56217 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


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

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Curt T-Connector Vehicle Wiring Harness Installation - 2019 Toyota Highlander

Today on our 2019 Toyota Highlander, we're going to be taking a look at and showing you how to install the Curt vehicle wiring harness with 4 pole flat trailer connector.This is going to give us our 4 pole connection and our converter box, if our vehicle does not have the factory tow package. It's going to allow us to tow a trailer safely and give us all the proper light functions, both turn signals, our running lights, and our brake lights.When you're ready to use it, simply lay it over top of the rubber seal, close your hatch, hook up your trailer and you're ready to go. When not in use, you can roll it up and store it in an out of the way compartment.What our converter box is going to do, it's going to protect our factory wiring in our vehicle from any back feed if our trailer wiring has any issues. It's going to come with a nice dust cap to help protect your connections from any dirt and debris.First thing we need to do, we need to remove all of our floor coverings on the inside rear of our vehicle. We're going to have a few tie downs here that have fasteners in them, we're going to need to remove those, remove everything down here on the bottom. Taking your trim panel tool, you're going to have some little push pin fasteners that run across the back of your carpet here.

We're going to pull those off, just like this. And we'll go ahead and pull these out, so you don't lose them. And then we'll fold that up just like that. We're going to have a panel right over here on the side, we're just going to pop it up. It's easier if you have a trim panel tool, you just get it under one side there like that, and then we'll set that aside.Then we're going to have a 10 millimeter head nut right here.

Keep in mind, this is on our driver's side. And then we're just going to pop out our center section, we'll go ahead and take it out and set it aside. We're going to take our wiring harness, we're just going to plug it right into it like that. Now we'll take our modular box, we're going to connect it into the other plug, and then we need to ground our ground wire. You can go anywhere on the metal, just make sure it's metal, not plastic.

Now I'll insert my fuse, and what I'm going to do is, this existing wiring here, I'm just going to zip tie everything right here, keep it nice and secured.Once you have both installed, you can go ahead and reinstall your panels. We're going to come underneath our hood, driver's side, and remove our fuse panel lid. We're going to find the towing, which is going to be right here. That's going to be our center. Going to be the third one up.

Per our instructions, we're going to insert the 10 amp short fuse. Now we'll test out our wiring using part number I26. Left turn, right turn, brake lights, running lights.That'll do it for a look at an installation on the Curt T-connector vehicle wiring harness with 4 pole flat trailer connector on our 2019 Toyota Highlander.


Customer Reviews

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

Average Customer Rating:  4.8 out of 5 stars   (492 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.

- C56217
by:

Easy to install and directions are good. No cutting or soldering, just plug in and route where it works best for you. I did not cut hole and run cable to underside of vehicle as suggested. Instead I leave the trailer connector inside the the rear hatch area when not in use and it pull out so the hatch squeezes the wire against the hatch gasket. Thus no leaks or rust on underbody sheet metal and connector does not get contaminated. 661957



- C56217
by:

Excellent harness. Simple instructions, everything included, easy install. Since it is self powered I could wire in additional lights with no worries about circuit overload. This is actually the third Curt wiring harness I bought. That's all I use. It just flat out works. 576412


Comments
Most Excellent trailer light connection assembly
Mike S - 10/22/2019

62965

- C56217
by:
2008 Toyota Highlander

They thought of everything with this set up and then some. Worked perfectly and was a snap to install. Saved a lot of money over what the Toyota agency wanted for the same thing. 575830



- C56217
by:
2015 Toyota Highlander

Ordered Curt Class 3 Hitch Receiver and custom T-connector Wiring Harness for 2015 Highlander. Order dispatched immediately Monday morning. Delivery as promised Thursday. Box was pretty badly beaten up and harness had been expelled from separate clamshell packaging. Nothing appeared damaged and all parts (except for 10 amp microbus for vehicle fusebox) were present. Video instructions for installing both parts were excellent and was able to do install in about 2 hours (don't have a lift and was working by self). Now just have to see if wiring actually works when I go rent my trailer. Thanks 405621



- C56217
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!! 130916


Comments
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.
Joe M - 05/18/2015

11814

- C56217
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. 181275



- C56217
by:
2011 Toyota Highlander

Please read the product reviews before installing a Curt trailer hitch for a 2011 Toyota Highlander. The instructions for trimming the panels is incorrect. Nothing has to be done on the passenger side. Just bend it slightly to get it in place. On the driver's side, the printed instructions are wrong. A 1.5" cut not a 2.5" is what is needed. Follow along the edge of several small holes to the large hole near where the end is snipped away that portion of the directions are correct. I attached a photo, not sure it will be attached. Also loosely install the Curt trailer hitch on the driver's side first, otherwise it won't line up. Tolerances are bit short on the width in my opinion. But it's now on and working fine. 214617



- C56217
by:
2018 Toyota Highlander

Received in good order and in sealed package. Will install my 2018 Highlander. GREAT... 573553



- C56217
by:

I purchased the trailer hitch and wiring harness at the same time. The wiring harness was simple to install, we watched the video and played it along side us as we did the job. The only thing I found was that the large white connector has to be tucked back up out the way or the 'trunk tray' won't fit back in properly. Everything went great, lights tested and worked.......and then where's my Leatherman? Looked all over for it and couldn't find it. Surely I didn't reinstall everything and leave it buried in the bowels of the car...........sure did. 456143



- C56217
by:
2011 Toyota Highlander

The hitch was exactly as described. The packaging of the product was inappropriate for a heavy metal product - it was loose inside a large corrugate case. In shipping it was bent, as other reviewers have mentioned. (Some wooden bracing inside the case would be more appropriate.) Fortunately I have a friend with a large vise who was able to straighten the bent section. After that, installation was relatively easy (for two people). The wiring harness was particularly easy. In use for towing a trailer, the hitch has been trouble free. 288877



- C56217
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! 499598



- C56217
by:
2014 Toyota Highlander

Excellent product that took about an hour to install in my 2014 Highlander. 220763


Comments
Your trailer hitch and wiring harness fit flawlessly, and I recommended you to my good friend [...] who also bought one from you. Much better price than what Toyota wanted for theirs which was in the $700 range if I remember correctly.thanks,
Steven P - 08/23/2016

20527

- C56217
by:

The hitch receiver itself is great; easy to install etc. The only glitch is the Curt T-connector harness. Item C56217 is designed to attach under the dash to activate that part of the system that is not activated in a vehicle without the tow package. The wire with the trailer connector is then attached to a pigtail next to the taillight. BUT, the instructions contained in the package indicate that both the wiring and the control box are to installed in the rear of the car. Perhaps that's true of another version of this product, but not this one. It works great when you wire it according to the manual...just not if you try to follow the instructions in the package. 130639


Comments
The harness that I received had two sets of instructions, one for a 2008-2013 Highlander, and the other side of the paper had instructions for the 2014 Highlander.The 2008-2013 instructions worked perfectly for my 2010 Highlander, which had the mount under the steering wheel.The 2014 Highlander supposedly has the mount in the back with the pigtail as you described. I dont know, I dont have this model vehicle.Make sure youre reading the proper side of the instructions when installing.
-- comment by: Benjam W - 06/30/2014

5219

- C56217
by:
2015 Toyota Highlander

This product was cleared for my 2015 Toyota Highlander, so I purchased it thinking the instructions would be clear. They were to a point. I was able to install the harness with very little trouble. When it came time to install the 10 Amp fuse in the highlanders fusebox (under the hood), there was some confusion. The instructions specifically stated that the highlander fuse box would show a "towing" fuse location and that it would be 10Amps. I don't know if this is unique to the 2015's, but the fuse location marked "towing" on mine was labeled "30 Amps". BIG difference! I called support. They promptly answered and made a couple attempts at answering my question, but being an electronics engineer it was not really to my satisfaction. They first suggested that it was marked 30 Amps because if you installed the 2015 Toyota Highlander OEM harness, it was made for 7-Pin. WRONG! No such OEM harness exists for the 2015 and the OEM install direction clearly shows a 4 pin layout. The operator went back to the technician and came back with the answer, "install the 10 Amp fuse and if it blows we'll know it's a problem!" I did install a 10 Amp fuse they supplied. Don't mistake this for a negative review. My experience with etrailer has been good in the past, and good now. I'm hoping they will update their documentation to reflect my model vehicle and appropriate technical specifications. Etrailer is the best! 172397


Comments
Thank you for the query. The products I purchased from your company works so well one tends to forget about them. I have had no issues whatsoever and they perform as intended. Thanks again.
Nogrey - 02/06/2016

16700

- C56217
by:
2017 Toyota Highlander

Great product. Installed the wiring system in about an hour and tested the lights. Very clear and concise installation instructions with accurate pictures. I recently purchased a 2017 Toyota Highlander that did not have a tow hitch and when I inquired about Toyota installing one for me, lets say the cost was obscene. So I bought the wiring kit along with their tow hitch. A very happy customer 420709


Comments
Lets just say that I AM VERY HAPPY WITH YOUR PRODUCTS. I would highly recommend them to any of my family and friends. Once again, you people continue to surprise me with this email. You really define the meaning of Customer Satisfaction Feedback !!! Thanks !!!!!!!
Carl H - 08/15/2018

42395

- C56217
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! 433334


Comments
Excellent..no problems!
Tom D - 09/17/2018

43672

- C56217
by:
2016 Toyota Highlander

Just bought a 2016 TOYOTA HIGHLANDER XLE. Had a trailer hitch but no wiring to it. Found etrailer online. Wasn't sure if it had trailer tow package or not. The online video etrailer put out there showed me how to easily determine. Took 15 minutes. Their website also explained what that meant: tow package meant the power converter was already under dash (from factory) and one connector in rear of vehicle; no tow package meant 2 connectors in rear, and no converter. Thus I ordered C56217. They sent me an email telling me it was at my door before I was even. The whole job took about one hour. (TOYOTA dealer wanted to charge me $130 for them to do it.) Shipped with detailed instructions and pix. A few things the video didn't show, but were included in instructions: disconnect neg lead of battery; insert additional 10A inline fuse into harness (slips right in and included); connect GND wire to a good GND point on vehicle. (I used an ohm meter to find an existing GND screw.) I also notched out a place for the wire in my trim (exacto knife) as to avoid crimping wire. Also, scissors slightly opened acts as great trim clip removal tool. To sum up, I would not hesitate to use etrailer again or to recommend them. 5 stars all the way around. 544685



- C56217
by:

One of my fuses didn't match what my manual said it should be 30AMP vs the 10AMP that it was sent with, lights still worked fine though. Super easy to install! 740042



- C56217
by:

Easy install. Functions perfectly. 736090



- C56217
by:

Easy! Only thing different than video instruction, was used fastener already in place for ground rather than self tapping screw. 734814



- C56217
by:
2015 Toyota Highlander

I want to thank "Tom" for his review on 1/10/2019 as it helped me out tremendously to use his same parts list for my own installation on our 2015 Toyota Highlander XLE vehicle. I luckily had a friend from church that had a lift so it made it a lot easier to get all the bolts in place and reassemble all the parts of the vehicle after installation. Here is my parts purchase list from etrailer: The Draw Tite 76156, 18144 plug mounting Bracket, Curt C56217 wiring kit, the ALL648544 Trim Pad Remover, and the Curt I26 Light Tester. You may not need the Trim Pad Remover but it was handy to have so we didn't break the plastic Grommets that hold a lot of the trimmings of the car together. These items also made for a clean look on the installation and this particular hitch (Draw Tite 76156) hides real well behind the bumber. I am very happy with the experience. I will definitely be using etrailer.com in the future. P.S. definitely watch all the videos attached to this product page. They were very helpful in find your way around the car and tricks for making the installation easier and cleaner. 734568



- C56217
by:

Easy to install, no problems. I have used the trailer about 6 times, and had no problems. A great product. 733928



- C56217
by:

Easy to install does what it design to do. Curt t-connector makes life much easier too. 730871



- C56217
by:

No issues after a year of install. Very pleased and easy to install. Directions were clear. 727707



- C56217
by:
2015 Toyota Highlander

At first I was confused by all the parts that came in the package. But after careful examination of other reviews I was able to install exactly what was needed for my 2015 Highlander. I have put it to use already and I can report that it works very well. Thanks. 723435


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Ask the Experts about this Curt Custom Fit Vehicle Wiring

  • How to Determine Correct Trailer Wiring Harness for 2019 Toyota Highlander
    Take a look at the rear of your 2019 Toyota Highlander in the spare tire compartment. You should be able to find a white connector like you see on the right hand side of the picture I've attached. If there is nothing plugged into that connector then you don't have the tow package. If there is something plugged into it, it should be a wiring harness with a converter (like is shown) which means you do have the tow package. If you do have the tow package I recommend the Hopkins harness,...
    view full answer...
  • How to Determine if a 2018 Toyota Highlander has a Tow Package
    To send me your picture you can just reply to me here. To me that connector you found sounds like where you need to plug a converter in which would mean you don't have the tow package. Look at the picture I've attached. If it looks like this will plug into the connector you found then that's what it is. It shouldn't be a connector for a brake controller because your 2018 Toyota Highlander doesn't have a custom adapter to install a controller. If this is what you need then I recommend...
    view full answer...
  • How To Tell If 2016 Toyota Highlander Has Factory Tow Package Wiring
    I cannot say for sure how you can tell whether or not you have the converter on your Highlander but I can help you out with the trailer harness installation. The only sure way to tell which harness you need is to check out what wiring you have in the rear cargo area. If you watch the attached videos you can see where the installation differs. If you remove the back tray in the rear cargo area of your Highlander you can see if there are two connectors, one being bigger than the other....
    view full answer...
  • Installing 7-Way Trailer Connector on 2019 Toyota Highlander Hybrid
    The particular parts you need to install a fully-functioning 7-Way on your 2019 Toyota Highlander Hybrid will depend on what exactly it's already equipped with. Either way you will need to start by adding a 4-Way connector harness. If your Highlander has the factory tow package I recommend the Curt T-Connector # 56042. If it does not have the tow package you will want the Curt T-Connector # C56217 instead. Both custom harnesses install by simply plugging into existing ports on the...
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  • Recommended Trailer Hitch Receiver and Wiring for 2018 Toyota Highlander XLE
    I was able to confirm with the manufacturer that the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C13200 is a fit for your 2018 Toyota Highlander XLE. For your trailer wiring, if you don't have the OEM 4-way, you need the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56217. 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...
    view full answer...
  • Recommended Wiring Harness for 2017 Toyota Highlander with Factory Tow Package
    If your 2017 Toyota Highlander does indeed have the factory tow package, I recommend the Curt T-Connector Vehicle Wiring Harness # 56042. This will easily install a 4-Way trailer connector by connecting to the existing port located behind the driver's side interior trim panel in the rear cargo area. If your Highlander has the tow package, this means it already has a built-in converter under the dash, so the converter box is not needed. If you are at all unsure, you can always visit...
    view full answer...
  • How to Tell if 2019 Toyota Highlander Has Factory Tow Package
    For some reason Toyota isn't very forthcoming with how to figure out if you have the tow package or not. From my understanding all of the V6 models of the 2019 Toyota Highlander have the tow package but it isn't specified as to what else might have the tow package (or if it's even available elsewhere). If you don't have a V6 then you can try contacting your local dealer with your VIN to see if they can help you out with that or you can use a circuit tester like part # PTW2979 and test the...
    view full answer...
  • Parts Needed to Install Curt Echo Brake Controller # C51180 in 2018 Toyota Highlander
    As long as you have a functional 7-way at the rear of your 2018 Toyota Highlander the Curt Echo brake controller part # C51180 will fit just fine and work well. If you need a 7-way you'd need to first start with a 4-way (if you don't have one of those either). For that you'd want the Curt part # C56217 which is a confirmed fit and then to convert to a 7-way you'd want the part # 37185. From there you'd just need to connect the black wire of the adapter to the positive post of the battery...
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  • Wiring for Curt Echo Mobile Wireless Brake Controller and Adding Electric Brakes to a Trailer
    The Curt Echo Brake Controller part # C51180 is a great choice because of its convenient and simple installation. The 7-way connector that you mention part # A10-7084VP pugs into the 4-way connector you purchased part # C56217. The white wire from the 7-way plug needs to be grounded to a clean bare metal surface on the vehicle's frame. You are correct, the black wire from the 7-way connector needs to be extended from the plug into the engine cavity and to a 40 amp circuit part # 9510...
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  • Trailer Towing Setup for a 2012 Toyota Highlander Limited to Tow 2 Jet Skis
    For your 2012 Toyota Highlander Limited, you'll need a hitch, the wiring, a brake controller and an anti-sway system. Based on my research, it looks like Toyota recommends both a braking and a sway control device on a trailer at this weight on your vehicle. Prior to installing a hitch and towing a trailer, you'll want to verify your vehicle's gross vehicle weight rating (GVWR) and tongue weight rating (TWR) on the sticker inside the driver's side door jamb to ensure that you are aware...
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  • Recommendation for Concealed Trailer Hitch on 2019 Toyota Highlander
    There are actually a few hidden-design trailer hitches available for your 2019 Toyota Highlander, but I specifically recommend the Curt # C13394 because of its superior black powder coat finish that will last much longer compared to those from other manufacturers (for longer corrosion resistance) and its competitive price point. This Class III hitch features a drop-down 2" receiver, which means the crosstube can stay hidden behind the rear bumper of your Highlander for a sleek, factory-like...
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  • Trailer Wiring Harness Recommendation for 2017 Toyota Highlander
    It's very possible that your 2017 Toyota Highlander did not come with the needed converter to activate the trailer wiring like the part # 56042 that you referenced. So instead you'd need the trailer wiring harness part # C56217 and you'd be set.
    view full answer...
  • Adding 7-Way Trailer Connector and Brake Controller to 2015 Toyota Highlander Limited Platinum
    Your pictures did not make it through so please email them to me by responding to this message. In the meantime the easiest way to determine if a vehicle has the factory tow package is to have the dealer run the VIN in their system and they should be able to tell you how the vehicle is equipped. You can also tell me the VIN and I can run it through some decoders to see if I can figure it out. It is possible for some vehicles to have the tow package wiring but not have the factory...
    view full answer...
  • Can the Curt T-Connector be Permanently Mounted on the Outside of a 2019 Toyota Highlander
    Yes, you definitely can mount the Curt T-Connector # C56217 next to your hitch receiver so that it is readily available. We haven't had any customers come in and ask for it to be installed that specific way yet (January 2019) so I don't have a video, but there should be a grommet in the rear cargo area of your 2019 Toyota Highlander that you can push the 4-Way Flat connector through. If you need to cut the grommet to push the connector through then you can use some sealant like the...
    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...
  • Trailer Hitch Recommendation for a 2015 Toyota Highlander
    Yes, the Curt Hitch part # C13200 is the correct hitch for your 2015 Toyota Highlander. We checked with Curt to confirm this. Also, the reviews and comments on this hitch will apply for your vehicle as well. The 2014 and 2015 Highlanders are the same generation. For trailer wiring you would want the part # C56217. I attached an install video for you to check out. For ball mounts I recommend the etrailer Ball Mount Kit # 989900. It comes with 2 ball mounts, 2 balls, a hitch pin with...
    view full answer...
  • Pick Out Trailer Wiring Harness for 2017 Toyota Highlander with Tow Package
    Since you have the tow package on your 2017 Toyota Highlander the converter is present under your dash so for trailer wiring you'd want the part # 56042 and you'd be set. I attached an install video for this for you to check out as well. Had you not had the tow package the correct harness is the part # C56217.
    view full answer...
  • What are Differences Between Curt Wiring Harness # C56217 and TowReady Harness # 118449
    Both Curt wiring harness # C56217 and TowReady # 118449 are fits for the 2015 Toyota Highlander without the factory tow package. They differ in their maximum current output capability. The Curt harness has a maximum output of 3-amps per stop/turn circuit and 6-amps for the taillights. TowReady harness # 118449 has a maximum output of 2.1-amps per stop/turn circuit and 5.6-amps for the taillight circuit. Generally its best to have more capacity to help ensure you do not overload the harness.
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  • Recommended Weight Distribution With Sway Control on 2016 Toyota Highlander With 3000 Pound Trailer
    A weight distribution system is recommended anytime your trailer's weight is at least half of your tow vehicle's weight. So with your 2016 Toyota Highlander towing a 3000 pound trailer, I definitely recommend using weight distribution with sway control, instead of just sway control. To choose a system you need to use your 300 pounds of tongue weight combined with the amount of weight stored in the back of your Highlander behind the rear axle. You want to make sure you have a system...
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  • Is a Brake Controller Required for a 2014 Toyota Highlander Pulling a 16ft Airstream Trailer
    A brake controller would be required if your Airstream has electric brakes. Toyota does not include a brake controller in their factory tow package, so one would need to be added. The Tekonsha Primus IQ Brake Controller, # TK90160, that you referenced is a reliable brake controller that would be considered in the middle of the road as far as features go. My favorite brake controller is the Tekonsha Prodigy P3, # 90195. It's versatility and customizable display make this brake controller...
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  • Parts Needed to Add a 7-Way Trailer Connector to a 2014 Toyota Highlander
    The Curt trailer wiring harness # C56217 and other wiring harnesses for your 2014 Toyota Highlander include converter boxes because the vehicle has separate turn signals and brake lights but trailers have combined turn signals and brake lights. The converter box converters the separate signals from the vehicle for the proper output to the trailer. It does not make the lights any more or less bright. This is a 4-Way trailer connector so it only has the basic lighting functions. For electric...
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  • Trailer Wiring Harness for 2015 Toyota Highlander
    The Curt T-Connector harness, # C56217 and the Tekonsha T-One Connector, # 118449 are designed for a Toyota Highlander without a factory tow package. The Curt T-Connector # 56042 is designed for a Highlander that has the factory tow package installed. If your Highlander came with a trailer hitch receiver installed, your vehicle probably has the tow package. If you are still not for certain you can contact your local Toyota dealer and have them run the VIN to see if your vehicle came...
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  • Wireless Controller Needed for Towing with a 2018 Toyota Highlander
    We do have a wireless brake controller that can be used with virtually any vehicle; the Curt Echo # C51180. This is a proportional brake controller that uses inertia sensors to determine how much power to apply to the brakes so that your trailer brakes at the same time and with the same intensity as your 2018 Toyota Highlander. You control the settings via Bluetooth connection (through an app) with your Apple/Android smart phone. The only thing required to use this brake controller is...
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  • Trailer Hitch Recommendation for a 2013 Toyota Highlander
    I have a Curt hitch solution I can recommend for your 2013 Toyota Highlander, but the part number you listed does not cross reference with any Curt hitches. Instead you would want the part # 13534 as it has been confirmed as a fit for your vehicle. I attached an install video for you to check out as well. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with...
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  • What Is different Between Curt And Tekonsha Wiring Harness For 2016 Toyota Highlander
    Basically, the different between the Curt wiring harness, part # C56217 and the -One Vehicle Wiring Harness, part # 118449 is they are made by different manufacturers. Both the Curt wiring harness, part # C56217 and the T-One Vehicle Wiring Harness, part # 118449 harnesses plug in the same way(behind the tail lights), and both have a powered converter. They both have a 4-way trailer connector. The # C56217 has a maximum amperage output of 3-amps for the stop/turn lights and 6-amps...
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  • Does Curt Trailer Wiring Harness # C56217 Fit 2017 Highlander Hybrid
    Yes, the Curt trailer wiring harness part # C56217 that you referenced does fit the 2017 Toyota Highlander Hybrid like what you have.
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  • How to Determine if a 2012 Toyota Highlander has a Factory Tow Package
    The best way to determine if your 2012 Toyota Highlander has a factory tow package is to have a Toyota dealer run the VIN number in their computer system. They can tell you how the vehicle is equipped that way. If they say you do not have the tow package use harness # 118449. If you do have the factory tow package use # 56042.
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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Expert Research:
Jeffrey L
Installed by:
Jeff D
Video Edited:
Joshua S
Video Edited:
Jacob T
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Sue W
Video Edited:
Chris R
Test Fit:
Nicholas E
Test Fit:
Shane T
Test Fit:
Randy B
Test Fit:
Brent H
Test Fit:
Shane H
Test Fit:
Robert C
Video by:
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Written by:
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