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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 # C56370
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Custom Fit Vehicle Wiring

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Curt Trailer Hitch Wiring - C56370
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs 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 C56370 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 (80)
  • Q & A (19)
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  • Why etrailer?

Curt Custom Fit Vehicle Wiring - C56370

  • 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. T-connector plugs 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
    • Locate connection points in rear cargo area
    • Plug in T-connector
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading vehicle's electrical system
  • Constructed using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector


Specs:

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


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your rear cargo area. You will have to remove the rear scuff panel, storage trim panel, and side trim panel to access this harness. Once you've plugged in the connector, open your fuse box and locate the fuse position indicated in the instructions. Then insert the included 10-amp fuse.


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


It is recommended that you use a small amount of grease on all electrical connections - the 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.



56370 CURT T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C56370 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 - C56370

Average Customer Rating:  4.9 out of 5 stars   (79 Customer Reviews)

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

- C56370
by:

Worked perfect. No complaints 666017



- C56370
by:
2017 Honda CR-V

Great experience with etrailer.com from ordering to installation. Super good video of installation highly recommend to watch at least once. The Curt wire harness fit great and worked well. Not to thrilled with Honda not having an entrance / exit hole available for the plug but alas that is a review for Honda though. I continue to buy from etrailer.com because of the excellent staff they have and the great installation help they provide. Start to finish including testing on a boat trailer I am hauling to Utah this next week took 90 minutes. 416942


Comments
Still Love the Harness & working great
Greg M - 08/08/2018

42068

- C56370
by:
2018 Toyota Sienna

Second time that I have used etrailer and have never had a problem. The staff is always knowledgable and helpful ! Thanks again 548754



- C56370
by:

The product is excellent and the directions were outstanding. I did need some clarification and contacted etrailer support. Mariah was thorough and professional. I couldn't ask for a cleaner fit on our 2019 CRV. The wiring harness was a bit complicated but after watching a video, the rest was a breeze. 714497



- C56370
by:

Installed about a year ago and used a few times on [rental] trailers. Works perfectly. The installation was pretty easy and took maybe 30 minutes. I believe the video does have you removing more panels than necessary and you can just slowly pry open and plug in the connector after removing some sections. Thanks again etrailer for providing great products and service! 659762



- C56370
by:
Honda

The product work out great! Watching the video, really made the difference in the installation. It was basically plug and play, once you got to the electrical plug in my 2017 Honda CR-V FWD vehicle. Thanks to Olivia and Technical staff. I was over 100 degrees during the install, so I did not take the time to take pictures. Thanks Again! 683841



- C56370
by:

One word to describe this hitch - Precise. I installed the hitch myself with out a lift in about an hour. I clamped a 2x6 board on to a floor jack and clamped the hitch to the board to lift it into place. It looks great and is very well made. The lift gate works as it did before. You just need to find the sweet spot. Thanks for providing an excellent product. Thurmont, Maryland 413910


Comments
As described before - Excellent
James A - 08/02/2018

41808

- C56370
by:

I recommend watching the video on eTrailer.com first! Took my time removing and installing the plastic interior panels. Instructions are easy to follow. 374848



- C56370
by:

Video was great made it easy to install only took one hour to complete by myself 562106



- C56370
by:

The instructions had me remove more panels than were necessary, however the wiring harness was not hard to install and the Harness connector fit the factory connector without any problems. It would have been nice to have more pictures on routing the harness behind the panels but I think I did OK. There is a ground lug and two splice connectors included in the kit but they appear not to be needed so why include them and add to my confusion. I plugged in my trailer and all worked perfectly, you can't ask for more than that. 370536



- C56370
by:
2018 Honda CR-V

The product was great, but the video needs to be updated to include removal of the lower section of the driver side wall panel. The tie down and leaver release was not the only restriction that I came across. For fear of breaking something I had to work in a very tight space and tying the harness into space as well as feeding the lead down through was difficult and a knuckle buster. 568385



- C56370
by:
2019 Honda CR-V

The installation video was very helpful except in one point - where and how you mounted the electronics module to make sure it doesn't rattle or move around. I used the double sided tape and attached it to the molding since I did not see a place to zip tie it to the car frame. Hopefully it will stay put even if the the car gets so hot to make the tape adhesive to go mushy. I will probably use this infrequently (I bought the hitch for a bike rack) so I did not care whether the connector was stored in the CRV or not. 822485



- C56370
by:
2019 Honda CR-V

Product worked great and plugged into the factory connector on my Honda CR-V. The installation video provided on e-trailer.com was invaluable to my successful installation. This is the difference between e-trailer and their competitors. They know this business like no one else. There simply is no comparison. I will say that mating the two Connector halves was a little more difficult than I thought it would be. It’s tight quarters and you may need a set of helping hands. I trust etrailer.com with anything hitch/towing etc. related. I have purchased from them several times and will only buy from them for these types of items. Very satisfied!! 820643



- C56370
by:
Honda

Works perfectly. Highly detailed and accurate installation instructions. Takes a considerable amount of Interior disassembly to access wiring harness connector, but I don’t see anyway to get around it. Honda could have done a better job at accessibility. 817544



- C56370
by:

2019 CRV: fit perfect and works great. Very easy to install with the given directions as well as videos on YouTube. 816655



- C56370
by:
2020 Honda CR-V

Plug and play. Very easy to fit. 808876



- C56370
by:

Extremely simple to instal this harness. No wires need to be cut and it is all plug and play. Great quality 808871



- C56370
by:

Simple installation. Good diagrams for trimming the places needed for clearance. Have not used it yet, but seems to be of good quality. I do not particularly like how the wiring harness is stored once installed, but I may find a rubber grommet to protect the wires and run the harness out through where the spare tire is located and mount it next to the receiver part of the hitch. 811916



- C56370
by:
2017 Honda CR-V

Works perfect. 802579



- C56370
by:

Works great after owning it for a full year. I use it monthly for trips to Home Depot and such. I picked this one because only the actual receiver hangs down below the bumper, not the entire tube frame assembly. It was easy to install (self install), the hardest part was getting the muffler out of the way but it wasn’t too bad. All the other types of hitches I researched would leave the tube frame assembly showing and I did not want that. As you can see in the pictures, the hitch is barely noticeable on the back of my 2018 CRV. You do have to cut a small amount of plastic trim from the bumper cover, but that is easily accomplished with a sawzall. I also purchased the wiring kit designed for my CRV. Plug-and-play. That was very simple to install and easily stores in the spare tire compartment until it’s ready to use, I just close the tailgate on it and haven’t had any issues, it still looks brand new. I occasionally tow a small trailer with side-by-side on it which is just under the CRV rated 1500lbs towing capacity and it works great without issue. Definitely a good purchase if you need a hitch. My advice, buy a small torque wrench or torque wrench socket adapter to fit between the muffler and frame so you can properly torque the bolts so it is safely attached to the CRV. Hope this helps! 806508



- C56370
by:

The hitch and wiring harness we delivered when promised and install was very easy with following the directions. 804474



- C56370
by:

Everything was there and it fit. A little tough to install due to space constraints 801905



- C56370
by:

This was super easy to install. Took less than an hour start to finish and looks great on my new car. Now we can pull our sailboats to the lake again. 799846



- C56370
by:

You folks are the very best when it comes to products, support and customer service. I would never purchase anything tow-related from anywhere else. eTrailer has always exceeded my expectations. By the way, I don't even have my recent product yet but felt the need to send this email. I'm sure when I receive the hitch and light harness, it will be the quality I've come to expect from eTrailer. UPDATE: See above! 799790



- C56370
by:
Honda

This fit perfectly on my 2020 Honda CRV. The install went smoothly but was a snug fit to get it into place. 794537


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Ask the Experts about this Curt Custom Fit Vehicle Wiring

  • Trailer Wiring Harness Recommendation for 2017 Honda CR-V
    The difference between the two trailer wiring harnesses you mentioned is that one is made by Curt part # C56370 and the other Tekonsha, part # 118741. We have better luck with the Tekonsha kits being reliable so for your 2017 Honda CR-V I would recommend the part # 118741.
    view full answer...
  • Does Curt Trailer Wiring Harness # C56370 Fit 2019 Honda CR-V Front Wheel Drive
    The Curt trailer wiring harness part # C56370 that you bought does fit your 2019 Honda CR-V front wheel drive so it is the correct harness. This fits the front wheel drive and all wheel drive models and installs very easily! I attached an install video for this harness on a similar 2019 model for you to check out as well.
    view full answer...
  • Help Finding Trailer Wiring Install Harness in 2018 Honda C-RV
    Your 2018 Honda CR-V does have the connector needed to install the Curt trailer wiring harness part # C56370 but due to the location of where the harness is its most likely buried behind other harnesses in that area. You'll want to keep digging and you'll eventually find it. This is a pretty common issue for installs like this. You may have to pull the interior panel back even further to find it. I attached an install video for this harness for you to check out as well.
    view full answer...
  • Finding Plug-In Wire Harness to Install 4-Way on 2017 Honda CR-V
    It can be a bit tricky to find the exact connection point for the Curt T-Connector Vehicle Wiring Harness # C56370 from just the instructions. What I recommend you do is take a look at the video I've linked which shows this harness being installed on a 2017 Honda CR-V. The accompanying photo is from that video and shows you the connection you need to look for; the video will show you exactly where to look behind the panel of your CR-V.
    view full answer...
  • Difficulty Accessing Factory Plug to Install Trailer Wiring Harness on 2018 Honda CR-V
    It looks like you will need to pry up that trim piece around the hook. Under it there is likely going to be a screw or something that is holding it on. I recommend using something plastic to pry out that trim piece because a metal tool could damage something. We do have some trim panel tools, # PTW80647, if you want to try those. Keep in mind that if this is the side panel it only has to be pulled out enough to reach the factory wiring harness that is behind it. Where is that hook located?...
    view full answer...
  • Does Curt Wiring Harness C56370 fit 2017 Honda CR-V 2 Wheel Drive?
    The Curt # C56370 is a fit for your 2017 Honda CR-V 2WD, though there is still a wiring harness that will work for you. This harness simply plugs into your wiring so you won't have to splice. I've added links to a video review and install of this harness for you to take a look at.
    view full answer...
  • Trailer Wiring Harness for 2017 Honda CRV
    The portion of the wiring harness you show I don't believe is the correct location. The Curt harness # C56370 is not a fit for both AWD and FWD vehicles, but the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118741 is a fit for both and has the same connector, which makes me think you may not have the correct location. I've attached the instructions for both as well as a video for each to assist. If you have the correct location, then the wiring in your vehicle...
    view full answer...
  • Will Curt Trailer Wiring Harness # C56370 Fit 2017 Honda CR-V FWD
    I verified that the Curt wiring harness part # C56370 will fit your front wheel drive 2017 Honda CR-V. In terms of trailer wiring there is no difference between AWD and FWD.
    view full answer...
  • Does Curt Trailer Wiring Harness # C56370 Fit 2017 Honda CR-V 2 Wheel Drive
    Long story short...the Curt trailer wiring harness part # C56370 IS a fit for your 2017 Honda CR-V. When vehicles are newer sometimes the fit info can change and it's possible at one time the # C56370 wasn't listed as a fit but we know for sure that it does fit a 2 wheel drive 2017 Honda CR-V. I attached an install video for this kit for you to check out as well.
    view full answer...
  • What Is the Meaning Of SMT In Relation To Trailer Wiring Harnesses
    I believe you are asking what SMT (surface mount technology) means in regards to the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # C56370. The Curt wiring brand uses surface mount technology to manufacture their circuit boards with the circuits soldered to the surface of the board instead of "through-hole technology" which uses wire leads in holes to make connections. Surface mount technology makes the circuit board more reliable and perform better in...
    view full answer...
  • Installing Curt T-Connector Vehicle Wiring Harness on 2018 Honda CR-V
    The Curt T-Connector Vehicle Wiring Harness # C56370 referenced in your question is confirmed to fit your 2018 Honda CR-V EXL AWD. I spoke with my contact at Curt regarding this harness on your vehicle. He states that there have been no issues with this harness on the 2018 model CR-V. Most likely, you have found a different factory connector on the vehicle than what this harness will connect to. On the 2018 model, the factory port you are looking for will be a little further up (vertically)...
    view full answer...
  • How to Route Curt T-Connector to Trailer Hitch on a 2018 Honda CR-V
    To route the Curt wiring connector # C56370 permanently to your trailer hitch you need to look for any grommets around where your spare tire is stored. I wasn't able to see any in the attached installation video on a 2018 Honda CR-V but if you remove the spare tire you may be able to locate one. If you aren't able to find a grommet then you will need to cut through your vehicle body and install a grommet like part # A55GB. Whether you find a grommet or have to install one you simply...
    view full answer...
  • Correct Curt T-Connector Vehicle Wiring Harness for a 2017 Honda CR-V
    The correct Curt T-Connector Vehicle Wiring Harness for a 2017 Honda CR-V AWD is part # C56370. If you instead have a 2017 Honda CR-V FWD you'd need to use the T-One Vehicle Wiring Harness part # 118741.
    view full answer...
  • Trailer Hitch and Wiring Harness Fits for 2018 Honda CR-V
    My contact at Draw-Tite advised that they have not yet had a 2018 Honda CR-V in for test fit of the Class III hitch # 76128 nor the wiring harness kit # 118741. This does not necessarily mean they will not fit, only that the new model year has not been tested physically. However our other primary hitch supplier, Curt, does confirm a hitch fit for all versions of the 2018 CR-V, their Class III hitch # C13397 and their 4-pole wiring harness kit # C56370 which fits AWD models. Since...
    view full answer...
  • Trailer Hitch Recommendation for 2019 Honda CR-V to Be Used with 1-1/4 inch Thule Bike Rack
    From your bike rack's point of view it's probably best to go with a 1-1/4 inch hitch so that you don't have to use an adapter that might cause unwanted movement in the hitch. For that I would recommend the Curt # C12169 which is a Class II confirmed to fit that will work great with you bike rack. Some of the Thule bike racks have hitch adapter sleeves but if you have the very popular T2 bike rack then there isn't so going with the correct hitch size for it is the way to go. Now your...
    view full answer...
  • Does Curt Trailer Wiring Install Harness for 2019 Honda CR-V Require Separate Ground Wire
    The install of the Tekonsha kit part # 118741 that you referenced does require the a separate ground wire get attached to the vehicle but the Curt harness part # C56370 for your 2019 Honda CR-V does not require this extra wire. It ground through the plug that attaches to the vehicle. I attached an install video for this for you to check out as well.
    view full answer...
  • Does Curt Trailer Hitch for 2020 Honda CR-V Fit Hybrid Models
    Yes, I verified with Curt that the hitch # C13397 does fit the Hybrid model of the 2020 Honda CR-V. If you have not purchased trailer wiring I recommend part # C56370. The Curt T-Connector harness is easy to install and also easy to secure inside the vehicle. I strongly recommend buying part # 989900 for your ball mount. This kit offers variable drops, two different ball sizes, two hitch pins, and a carry bag for when the hitch is not in use.
    view full answer...
  • Accessing the Factory Connector to Install Trailer Wiring on a 2018 Honda CR-V
    Either one is correct. If you try the method shown in the video for # 118741 but have a hard time reaching in there to get to the connector then go with the method shown in the video for # C56370. I have linked both videos for you as well as the instructions for each harness for your 2018 Honda CR-V.
    view full answer...
  • Curt Wiring Harness Compatibility with FWD and AWD 2018 Honda CR-V Models
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56370 is a confirmed fit for both the FWD and the AWD 2017-2018 model years of the Honda CR-V.
    view full answer...




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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Chris R
Updated by:
Sarah W
Updated by:
Kristina F
Updated by:
Isabelle B
Updated by:
Noah M
Written by:
Amanda M
Test Fit:
Brent H
Test Fit:
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Video by:
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