bing tracking image
  1. Custom Fit Vehicle Wiring
  2. CURT
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. Powered Converter
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
lowest price pledge
Retail:$64.40
Our Price: $37.94
You Save: 41%
Custom Fit Vehicle Wiring

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Orders above $99 qualify for Free Shipping
Shipping Weight: 0.94 lbs
Quantity: 
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
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 800-298-1624 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.
  • All Info
  • Reviews (778)
  • Q & A (0)
  • Photos
  • Why etrailer?

CURT Custom Fit Vehicle Wiring - C56217

  • 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

Installation Details C56217 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

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

Average Customer Rating:  4.8 out of 5 stars   (778 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:

I really want to give this 5 stars because it is all quality, good price, and shipped quickly. However there was nearly no protective packaging so the tow bar easy bashed holes all through the box resulting in significant damage and chipping of the powder coat. The powder coat is the the only thing that will prevent rust, so I touched it up with paint. Other than the shipping damage, very happy.


Comments
Sorry to hear that. Here is more painting tips in this help article:
-- Etrailer Expert Sierra K - 12/08/2021


- C56217
by:

It does not fit a Lexus 2021 RX350 Standard. The wiring harness will not work according to my installed A1 Hitch he connects do not match what in the vehicle. They had to use a different harness. He agreed that Curt said it would fix but the connectors are different.


Comments
I will have our customer service team reach out to you. For the 2021 Lexus RX 350 it is noted that the OEM tow package may be required for installation. The 10 pin connector may be inside luggage compartment, on the passenger side, below taillight, behind little plastic removable bin and the 4 pin may be underneath bumper cover on the driver side.
-- Etrailer Expert Jenny N - 02/25/2022


- C56217
by:
Toyota Highlander

Bought this harness to install on my neighbors Toyota Highlander. He had attempted to rent a uhaul and the uhaul dealer apparently attempted to install a harness but it wouldn’t function. This harness installed in minutes and has worked perfectly. No issues. I always buy my trailer hitch gear from e trailer. Have been a customer for has to be 20+ years. Never had a problem.



- C56217
by:

The harness was easy enough to install, but the instructions included were inaccurate. It states you need to install it under the dash, where the factory trailer lighting is in the trunk. The video installation does it correctly, but the included instructions do not.



- C56217
by:
Honda Pilot

Great product and super easy to install! I would add a step of drilling a small pilot hole for the self-tapping screw. Prior to the pilot hole, the screw would dance around and wouldn't grab. Once I drilled the pilot hole, the screw took. This was the hardest part of the project. Don't forget to order the Brophy Circuit Tester for 4-Pole Flat Trailer Connector (Item # F4CT). Having verification of a working system is a must. I would add this as a recommended item when ordering the wiring harness.



- C56217
by:
2018 Toyota Highlander

eTrailer has become my one stop shop for EVERYTHING regarding trailers and towing. Their prices are very competitive but what sets them apart is the vehicle specific applications and video installation instructions. No one has anything as robust as their complete service to the customer.



- 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!


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



- 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!



- C56217
by:
2016 Toyota Highlander

Perfect fit and etrailer is a great resource. Through their installation videos I learned that my Highlander did not have the factory tow package installed unlike the vehicle owners manual that completely ignores this essential detail. After initially installing a 4flat connector and not getting any lights, I saw the video and the need for the additional part. Now I have lights, hitch and towing.



- 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.



- 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!!


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



- C56217
by:

This was very simple to install. The longest part was trimming the plastic body shield around the receiver. After a year, it has held up well



- C56217
by:

Very easy to install. As always, the etrailer install videos are extremely helpful.



- 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.



- C56217
by:

I never respond to these surveys but I feel obligated in this case. I was very satisfied by etrailer. The part was easy to find, they had the exact vehicle depicted for an installation video, kept me informed as to delivery and did a follow up for any further assistance. All of may seem mundane, but in this case, they completely got everything more than right, it was perfect in being efficient, professional and personal.



- 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.



- C56217
by: 06/27/2021

Easy to install, good video on etrailer.com, okay instructions in product packaging. Small type.



- C56217
by:

I wish that the wiring kit would have come with a bracket to mount the connector.


Comments
For this harness once the installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your cargo area.
-- Etrailer Expert Jenny N - 01/19/2022


- C56217
by:

I was impressed with how easy this went on and the price being very competitive with other options out there. Some folks had commented on it being bent or not lined up perfectly, so I knew I was expecting to have to manipulate it some while putting it on. There was a little that had to be done to get holes to line up, but overall it was fine. Make sure you have a torque wrench to put this on. I tried to use my best judgement on how much torque I was putting on and schooled myself when I actually used the torque wrench. The only thing I don't care for is the hitch insert piece doesn't fit snug in the mounted end. It rattles when there isn't a trailer on. You'll swerve or be turning a corner and hear it *thunk* as it adjusts, or a bump in the road causing it to happen. Fine if you are one to remove the hitch between hauling a trailer, but I don't since I use it relatively frequently. Maybe it's just the insert I'm using, I can't say I've noticed it with other hitches, but maybe I'm used to it now.


Comments
Still going great. I havent had to give it a thought. Ive been very happy with it and use it frequently. Ive even recommended this to at least a couple people.
Pretty I - 07/21/2021


- C56217
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)



- C56217
by:

Our experience was perfect! Customer service was phenomenal (thank you Bailey for taking such good care of us!) - products arrived earlier than expected, prices were on point, and the products are exactly as they should be! The videos available on the product description pages were so helpful and gave us the confidence to order and install ourselves. Highly recommend etrailer and will definitely order from them again.



- C56217
by:

Simple install Second item from etrailer that's installed as it should.



- C56217
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.


Comments
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.
-- Etrailer Expert Mike L - 01/28/2019


- C56217
by:
2013 Toyota Highlander

Easy to install. I had to swap the ground wire eye for the bigger one (included) for under the steering wheel. The double sided sticker wasn't sticky at all,I'll need to find another way of securing it. The rest is simple and the video on here helped a lot.



- C56217
by:

Works great. Powers my led strip tail lights on the boat. Plugs right into the Toyo connection. Ran ground all the way back.


29
787
Show More Reviews

Ask the Experts about this CURT Custom Fit Vehicle Wiring



  • Where to Route 4-Way Trailer Connector from Storage Area on a 2008 Toyota Highlander
    When you are ready to use the trailer wiring harness # C56217, you will just pull the 4-Way end out. Make sure the wires are on the weather stripping at the back of your 2008 Toyota Highlander, not on the latch and close the rear door. The weather stripping will protect the wires. Take a look at the video I have linked to the right. Fast forward to about the 2 minute, 30 second mark to see how this works. To route it through the vehicle you would have to locate a grommet that exits the...
    view full answer...
  • Is 10 Amp Fuse Included with Curt Trailer Wiring for a 2008 Toyota Highlander Enough
    Yes, the 10 amp fuse that comes with the part # C56217 is adequate with the Curt harness part # C56217 that you mentioned. I actually just recently talked to Curt about this very same question and the difference is that the 10 amp fuse is what the Curt harness requires but if you were to use the Toyota trailer wiring harness you would need to use a 30 amp fuse.
    view full answer...
  • Curt Trailer Wiring Harness Amperage Rating for a 2015 Toyota Highlander
    The 30 amp rating on your 2015 Toyota Highlander also likely includes the 12 volt power circuit and/or provisions for a brake controller. Trailer lights only take up a fraction of that and there are no trailer wiring harnesses that draw 30 amps. Curt wiring harness # C56217 has a maximum amperage rating for 3 amps per circuit for stop/turn lights and 6 amps total for tail lights.
    view full answer...
  • Does Installing Trailer Wiring on Vehicle Require Disconnecting Vehicle Battery
    Any time you install electric components on a vehicle it's a good idea to disconnect the battery. This prevents you from accidentally shorting something out and damaging the vehicle wiring. When you go to install the Curt Harness part# C56217 you will want to disconnect the battery. It is listed as a step in the install instructions.
    view full answer...
  • Troubleshooting Low Voltage at Running Lights Pin with Curt Harness on Toyota Highlander
    If you installed the Curt T-Connector Vehicle Wiring Harness # C56217 on your Toyota Highlander, I recommend making sure that the white ground wire from the harness is securely attached to a clean, bare metal surface. A weak ground can certainly cause the low voltage you are getting at the connector. The running lights will require more power draw than the other basic light functions, so this would explain why the issue is only apparent with them activated. If the ground wire is securely...
    view full answer...
  • Will Curt 4-Pole Flat Trailer Connector Power Trailer With Wishbone 4-Way?
    Yes, you can use the 4-Flat Wiring Harness # C56217 that fits your 2017 Toyota Highlander on a trailer that has a 4-pole with 5 wires. The connector on your trailer is called a wishbone and it simply has two running light circuits (one for each side of the trailer) instead of one, but is absolutely compatible.
    view full answer...
  • 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...
    view full answer...
  • Where are Connection Points to Install Curt Wiring Harness part # C56217 on 2014 Toyota Highlander
    The connection point that is in the rear of your 2014 Toyota Highlander will be on the driver side. You will need to open the tailgate, remove the access panels, scuff panels, trunk floor panels and trays to access the 4-pin connector. There is also another connection point up front on the driver side. It is located underneath the dash on the driver's side between the emergency brake pedal and the brake pedal. I attached installation instructions and a review video of this product for...
    view full answer...
  • 2009 Toyota Highlander Trailer Wire Harness Recommendation
    Actually the Curt harness part # C56217 that you referenced is the replacement for the older model part # 56034 that you also referenced that is no longer available. With that being said the # C56217 would be the right choice for your 2009 Toyota Highlander and would work well. This harness does use a newer circuit board design than the older model converter boxes. This box uses surface mounted technology which is far superior to the through-hole style that older boxes used. I attached...
    view full answer...
    Image 1 for
  • 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...
    Image 1 for Image 2 for
  • Troubleshooting 4-Pole Factory Wiring Harness on 2008 Toyota Highlander
    If your trailer lights just recently started malfunctioning, I recommend that you start by checking to make sure that you don't have a blown fuse or a bad relay in your 2008 Toyota Highlander. You will want to check all of the fuses and relays that relate to the tow package. If all fuses and relays check out to be fine, I would then check the grounds on both the Highlander and your trailer. You will want to check to make sure that the ground wire is secured tightly to a clean metal surface...
    view full answer...
    Image 1 for Image 2 for
  • Wiring Harness Recommendation for 2017 Toyota Highlander
    To power your trailer lights, I recommend installing the Curt Wiring Harness with 4-Flat # C56217. This harness includes a converter to combine the separate signals from your 2017 Toyota Highlander. I've added links to a video review and install for you to take a look at.
    view full answer...
  • Troubleshooting Wiring Harness with 0.5 Volts Between Ground Pin and Other Pins
    I reached out to Curt about your # C56217 harness and the .5V that you see on your harness is completely normal. There has to be a small amount of power going to any circuit protector to work properly, so that minimal current isn't even enough to light a bulb. You won't have any issue with starting your vehicle at any time even in cold weather due to that small draw. To put it in perspective, the LED light on a cell phone charger that isn't connected to a cell phone will have more of...
    view full answer...
  • Replacement Converter Boxes For Custom Trailer Wiring Harnesses
    The first thing I would do is check your wiring installation as the majority of the time, malfunctions occur as a result of improper wiring rather than converter box failure. If you would like to tell me the problem you are having then I would be glad to help. Unfortunately, as the converter box and provided wiring harness are the majority of the Curt T-Connector Vehicle Wiring Harness part # C56217 kit. We do not sell the individual converter box as a replacement part. If we did, it would...
    view full answer...
  • Curt Trailer Wiring Harness Install for a 2014 Toyota Highlander
    Yes, the install process for the Curt harness part # C56217 will be the same on your 2014 as what is shown in the video for the 2015. I also attached a link to a video that shows the same harness being installed on a 2013.
    view full answer...
  • Where are the Connectors Located in 2015 Toyota Highlander to Install Curt Wiring Harness # C56217
    The two harnesses you are looking for to install the Curt Wiring Harness on your 2015 Toyota Highlander are located exactly where the installation instructions indicate they will be; located in the rear hatch behind the rear scuff panel on the driver side of the vehicle. For more information on how this product installs check out the install instructions and install video I attached to the right.
    view full answer...
  • Trailer Wiring Harness for a 2015 Toyota Highlander without Factory Tow Package
    Curt trailer wiring harness # C56217 is a fit for the 2015 Toyota Highlander models that did not come with the factory tow package and do not have a trailer wiring converter under the dash. I have linked a video showing how it installs. The 10 amp ATC fuse installs in the in line fuse holder that is part of the wiring harness. Using the lid covering the fuse box under the hood find the location of the towing fuse and insert the other 10 amp fuse where indicated. I checked the owners manual...
    view full answer...
  • Can a 30 Amp Fuse be Used Instead of a 10 Amp on Curt Wiring Harness for 2017 Toyota Highlander
    What you are likely seeing for the 30 amp circuit is for the 12 volt hot lead for a 7-Way trailer connector. The 10 amp fuse for Curt trailer wiring harness # C56217 applies only to the trailer lights and no other functions. Most OEM systems use a 30 amp circuit for the 12 volt hot lead in a 7-Way but the ratings for the circuits related to the lights will be much lower. You would not use a higher rated fuse with the Curt harness because it would allow a short to overdraw the converter...
    view full answer...
  • 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.
    view full answer...
  • Do I Install a 10 Amp or 30 Amp Fuse for Trailer Lights in the Fuse Box for a 2013 Toyota Highlander
    The 10 amp fuse that is included with the Curt T-Connector Vehicle Wiring Harness part # C56217 will need to be the one that you insert into the # 29 slot. The owner's manual does indeed call for a 30 amp fuse here but that is with the factory converter box, not an aftermarket one. There will not be any problems installing a 10 amp fuse in this location even though the factory calls for a 30 amp.
    view full answer...
  • Fuse Location for Installation of Curt Wiring Harness on 2018 Toyota Highlander
    If you take a look at the accompanying photo you can see our installer point out the exact location where you need to install the fuse in your 2018 Toyota Highlander when installing the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56217. It will be in the fuse panel under the hood on the driver's side. If you lift up the cover it will have a legend which shows where the towing fuse is. If you go to about the 7:20 mark in the linked video of this harness...
    view full answer...
    Image 1 for
  • Installing Trailer Wiring Harness on 2019 Toyota Highlander Hybrid
    It sounds like you're looking through the installation instructions for the Curt T-Connector Wiring Harness # C56217 that requires you to first disconnect the negative battery terminal. You are right that on the 2019 Toyota Highlander Hybrid the 12V battery is located in the left-hand side of the luggage/cargo compartment. You are also correct that disconnecting and reconnecting the battery may at first prevent the hybrid system from re-starting. Keep in mind though that disconnecting...
    view full answer...
  • How Does Fuse Install in Red Fuse Holder of Curt Trailer Wiring Harness # C56217
    Pull the cap off of the red fuse holder of what comes with the Curt trailer wiring harness part # C56217 and push the metal feet of the fuse into the slots that you can see in the holder.
    view full answer...
    Image 1 for
  • Can Curt T-Connector Vehicle Wiring Harness C56217 Be Installed In 2021 Lexus RX 350?
    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...
    view full answer...


< Previous
123. . .9



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




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality custom fit vehicle wiring for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate custom fit vehicle wiring information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Jeff D
Installed by:
Jeff D
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Sue W
Video Edited:
Sue W
Employee Chris R
Video Edited:
Chris R
Employee Nicholas E
Test Fit:
Nicholas E
Employee Shane T
Test Fit:
Shane T
Employee Randy B
Test Fit:
Randy B
Employee Brent H
Test Fit:
Brent H
Employee Shane H
Test Fit:
Shane H
Employee Robert C
Test Fit:
Robert C
Employee Kathleen M
Video by:
Kathleen M
Employee Alan C
Video by:
Alan C
Employee Jonathan Y
Video by:
Jonathan Y
Employee Michael B
Video by:
Michael B
Employee Laura H
Written by:
Laura H
Employee Rachael H
Updated by:
Rachael H
Employee Wilson B
Updated by:
Wilson B
Employee Hannah L
Updated by:
Hannah L
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


Product Experts Available Now!
Call 800-298-1624