bing tracking image
  1. Custom Fit Vehicle Wiring
  2. CURT
  3. Custom Fit
  4. 4 Flat
  5. Trailer Hitch Wiring
  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 # C56355
Retail:$101.95
Our Price: $64.84
You Save: 36%
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.

Add to cart
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

Need help with installation?
Locate installers near me
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. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56355 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (28)
  • Q & A (0)
  • Photos

CURT Custom Fit Vehicle Wiring - C56355

  • Custom Fit
  • 4 Flat
  • Trailer Hitch Wiring
  • CURT
  • 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
    • Run hot lead to car battery
  • 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 trunk floor coverings and the rear scuff panel to access this harness. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery.


Once installation is complete, the 4-way connector will be stowed stowed on a flat spot near your taillight, inside 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.



56355 Curt T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C56355 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56355

Average Customer Rating:  4.6 out of 5 stars   (28 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.

by:
2013 Volvo XC60

Found the installation video on trailer wiring harness for my Volvo.
Very detailed and I am ready to DIY!

Joe



by:

Didn't leave an immediate reviews b/c I didn't actually use it right away. Easy install and works flawlessly on small trailer. I didn't use the large gauge wire directly to the battery b/c I didn't need the electric brakes and I would have had to get dirty and break knuckles under the vehicle.



by:

It was all good!!



by:

works petfectly



by:
2017 Volvo XC60

Great product, easy install. Video very helpful.
Only suggestions: use electric fish line to run cable inside frame and don’t hack at battery holder, simply remove lid and drill a small hole downward at corner, much better and aesthetic as well.

Frank

11/6/2021

Still great after one year !



by:

This kit fit well and works well, though I don't like opening the hatch and then passing the chord out every time I want to tow. So, I cut the wires, passed it through a drain plug on the bottom of the car, and spliced them all back together. I think this is just about a necessity if you're installing the 7 pin and brake controller, which I did. You can't hardly pass the four pin out the hatch every time you want to hitch up. All in all this is a great trailer wiring system. It fit great and was a fast install.



by:

I ended up buying this because UHaul/Curt stopped selling the kit that matched my vehicle. The installation was straightforward. The quality is good. It has been a year and I have had no problems.

Dave P.

8/13/2020

It is doing well after another year 2 total. Have used it for 3 x-country moving trips and several instances of hauling things around town. Electrical and mechanical have worked fine.



by:

Kit was complete solution, works as advertised. I could have installed myself, but my local car guy did it for me and parts plus labor still a relative bargain.



by:
2017 Volvo XC60

The wiring harness for the hitch I install on my 2017 Volvo XC60 R-Design works great. The installation video made it a snap to get the harness installed. Having access to a lift made the running of the power wire to the battery very easy.



by:

excellent product with easy installation instructions!



by:

Excellent service AND PRODUCT.. On time and in great shape!!



by:

Well documented installation for a person who has never installed a hitch. Quality materials, all for a fair price.



by:

Excellent value, great customer service and quick shipping. Have done business with etrailer a few times and always satisfied.



by:

fits



by:

Great products from a great company. This was not my first order and as always I was very satisfied. I really like your website. The information about your products on your site are excellent. Thanks



by:
2012 Volvo XC60

The kit was easy to install. The only concern I had with it was the double-back tape. Neither side was sticky, so it was unusable.



by:

U are superGood guys



by:

had my mechanic install. looks and fits great.



by:



by:



by:



by:



by:



by:



by:


25
28
Show More Reviews

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

  • Recommended Trailer Wiring For A 2016 Volvo XC60
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56355 you referenced is a compatible fit for your 2016 Volvo XC60. 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 trunk floor coverings and the rear scuff panel to access this harness. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and...
    view full answer...
  • Curt Trailer Wiring Harness Recommendation for 2015 Volvo XC60
    For your 2015 Volvo XC60 the correct trailer wiring harness is actually the Curt part # C56355 and not the # C56224 that you referenced as that fits a different model Volvo.
    view full answer...
  • Comparison of Tekonsha T-One and Curt T-Connector Wiring Harness for 2017 Volvo XC60
    The # 118739 Tekonsha T-One harness and # C56355 Curt T-Connector harness are both custom fit for the 2017 Volvo XC60. The installation is the same for both. The Curt has a powered converter using SMT and the Tekonsha has a powered ModuLite converter, both are designed to reduce strain on the wiring system. I recommend the Tekonsha over the Curt. Based on feedback from our installers and customers we have found the Tekonsha harness to be the more reliable of the two. I have attached...
    view full answer...
  • Does etrailer Trailer Hitch Fit 2012 Volvo XC60 R-Design
    Yes, the etrailer Trailer Hitch Receiver # e95AR does indeed fit your 2012 Volvo XC60 R-Design. If you plan on towing with this hitch and need a trailer connector, the correct fit for your XC60 is the T-Connector Vehicle Wiring Harness # C56355.
    view full answer...
  • Troubleshooting Backup Camera Problems with Curt Wiring Installed on a 2012 Volvo XC60
    It could be that the draw of the Curt T-Connector # C56355 on your 2012 Volvo XC60 that's causing the problem, but I will say that it's not uncommon for backup camera systems to be a bit finicky so I recommend disconnecting the tees of the Curt system from the tail lights on your XC60 and then running your camera system through the motions to see if you're still having issues or not. If you are then it's the camera system itself, but if you aren't then that means the Curt wiring is causing...
    view full answer...
  • Parts Needed For Towing a Trailer With a 2017 Volvo XC60
    I recommend the Curt Trailer Hitch Receiver # 13268 for your 2017 Volvo XC60. This receiver is made in the USA and has a 2" opening for ball mounts and other hitch mounted accessories. For towing a trailer you will need a kit like the etrailer Ball Mount Kit # 989900 which includes 2 ball mounts with different rise/drop measurements, hitch pins, a 1-7/8" and 2" hitch ball. The 4-Way Wiring # C56355 will allow you to connect to most small trailers or Auxiliary Lights # C53201. If your...
    view full answer...
  • Recommended 7-Way Connector for a 2013 Volvo XC60
    If by round plug you mean 7-way connector then yes we do have a couple of parts that when combined will add a 7-way to your 2013 Volvo XC60. The first part you will need is the Curt Vehicle Wiring Harness item # C56355. This custom-fit T-connector plugs into your Volvo's wiring harness, which is located in your rear cargo area. The second harness you will need is the Universal Installation Kit item # ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector that mounts easily...
    view full answer...
  • Recommended Trailer Hitch for 2017 Volvo XC60
    Yes, the Curt Class III Receiver Hitch # 13268 referenced in your question is confirmed to fit your 2017 Volvo XC60. This 2 inch receiver has a tongue weight capacity of 400 pounds and gross towing capacity of 4,000 pounds, although you will also want to check the vehicle's capacities as listed in the owner's manual. I have attached an installation video on a 2016 XC60 for you to check out. If you plan on doing any towing, I recommend the Curt T-Connector Vehicle Wiring Harness # C56355....
    view full answer...
  • Does 2015 Volvo XC60 etrailer Hitch Receiver Come with Trailer Wiring Harness
    The etrailer Trailer Hitch Receiver # e95AR doesn't come with wiring but we do have a few kits that fit your 2015 Volvo XC60. I recommend the following parts to get wiring added to your vehicle: - Curt T-Connector Vehicle Wiring Harness # C56355 - Mounting Brackets # 18144 and # C57202 The Curt wiring tees in behind your tail lights and then you connect the power wire up to your battery to power your tail lights, then the mounting brackets give you a way to keep your 4-Way connector...
    view full answer...

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


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jacob T
Video Edited:
Jacob T
Employee Chelsea B
Written by:
Chelsea B
Employee Wilson B
Updated by:
Wilson B
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.