bing tracking image
  1. Custom Fit Vehicle Wiring
  2. CURT
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. Powered Converter
THIS ITEM IS NOT A FIT FOR
1999 Ford F-250 and F-350 Super Duty

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

Item # C56285
Retail:$85.60
Our Price: $47.87
You Save: 44%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

1999 Ford F-250 and F-350 Super Duty

Will this fit?

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

Shipping Weight: 1.1 lbs
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

In Use/Installed

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 C56285 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 (26)
  • Q & A (0)
  • Photos

CURT Custom Fit Vehicle Wiring - C56285

  • 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. 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 cargo area. You will have to remove all trunk floor coverings, storage trays, and the scuff panel to access these connection points. Once you've plugged in the T-connector, run the hot lead 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 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.



56285 CURT T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C56285 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 - C56285

Average Customer Rating:  4.5 out of 5 stars   (26 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:

Easy to install. Watched a youtube video and had no issues. Great customer service and quality part.



by:
Volvo XC90

Pretty straightforward on installation after watching the video etrailer posted on the Volvo XC90.



by:

Item was clearly repackaged. Never the less I had to use it and it seems to work fine. Install was easy with the assistance of a very helpful video.



by:
2018 Volvo XC90

Easy to install and use. Excellent installation instruction video



by:

Works great. Easy to install and tuck everything away when not using to keep from weather. No problems with trailer lighting from either occasional [moving] trailers or personal trailer.



by:

Easy to install



by:
Volvo XC90

I really like the way the stealth hitch is hidden when not in use on my Volvo XC90.



by:
2022 Volvo XC90

Easy to install following the installation video



by:
2016 Volvo XC90

Unable to finish the battery hook up to the wiring. I have "T8" Xc90, Hybird, battery connections are not the same as any information available, unsure at the moment how to proceed, do not want to loose any settings if I take off connections.



by:

As advertised,this harness is a snap to install.
I did also added a”P”clamp to the harnesses at the light assemblies to tuck everything in tight.

Works great!!



by:

Works great,easy install.



by:
2017 Volvo XC90

This installed easily and works good.



by:



by:



by:



by:



by:



by:



by:



by:



by:
2018 Volvo XC90



by:
2017 Volvo XC90



by:



by:



by:
2019 Volvo XC90


25
26
Show More Reviews

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

  • Troubleshooting Curt Trailer Wiring Harness # C56285 that Turn Signals Don't Work
    Typically with T-one style trailer wiring harness like the part # C56285 with issues like this fix is to just disconnect and reconnect the connectors which ensures the pins end up fully seated. Otherwise you'll need to use a circuit tester like part # PTW2993 to test for voltage on input side of box and output. If input is there but nothing on output the issue is the converter box is shorted out.
    view full answer...
  • What Part Do I Need to Trim to Install the Hidden Hitch item # DT82GR on a 2019 Volvo XC90?
    The only part that will need to be trimmed or cut to install the Hidden Hitch item # DT82GR is the bottom of the fascia. I have attached a picture below that will show you this step. The Hidden Hitch item # DT82GR is confirmed to fit the 2019 Volvo XC90. If you are planning on towing you will also need a wiring harness item # C56285 and a ball mount kit item # C45534.
    view full answer...
    Image 1 for
  • Recommended Wiring Harness for a 2020 Volvo XC90
    Yes, the instructions for the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56285 are the same for both the hybrid and gas models.
    view full answer...
  • Where Does The Trailer Wire Harness Connector Sit After Installation On A 2021 Volvo XC90
    Hi Ryan, The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56285 is designed to stay in the trunk of your XC90 when not in use. When in use you'll just pull it out and close the rear hatch. There's a gasket that lines the rear hatch that will flex to allow for the wiring to pass through and not get smashed when you close the hatch. If you want to run it down to the hitch instead then you'll likely need to run the connector to a tail light corner and then...
    view full answer...
  • What is the Best HItch for a 2019 Volvo XC90?
    Yes, we do! The best one is going to be the Curt Hitch item # C53HR. This hitch is custom fit for your 2019 Volvo XC90 and bolts to it with included hardware. This is a class III hitch with a 2" receiver which means it will be compatible with most bike racks on the market. The reason the Curt item # C53HR is the best hitch for your Volvo is because the crosstube mounts behind your rear bumper leaving only the 2" receiver exposed. This not only looks better but helps with ground clearance...
    view full answer...
  • Help With Installing The Curt T-Connector 4-Way Wiring # C56285 On 2022 Volvo XC90
    For the Curt T-Connector Vehicle Wiring Harness # C56285 I have linked an installation video for a 2021 Volvo XC90 below. This is currently the newest model XC90 we have been able to install any of the wiring harnesses we carry. If your XC90 is different you will want to consult a service manual for your specific model year which will help you to access the necessary wiring and a suitable grounding point. You may be able to find a pdf version for the service manual on a Volvo forum.
    view full answer...
  • Trailer Hitch and Wiring for a 2016 Volvo XC90
    For your 2016 Volvo XC90 you can use Curt trailer hitch # C13233. This is a Class III trailer hitch with a 2 inch receiver. It is rated for 900 pounds tongue weight and 6,000 pounds gross trailer weight. Be sure to check the vehicle owner's manual for the XC90 capacity and go by the lowest rating. If you plan on doing some towing I recommend 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 a 2-3/4 inch rise or 4 inch drop....
    view full answer...
  • Trailer Wiring Harness Fit for 2017 Volvo V90cc
    Although it's conceivable that the Curt # C56285 could fit the 2017 Volvo V90, they haven't tested the fit so they cannot confirm if it'll work for you. I'd recommend going with a universal fit harness like the # C59496 which will without a doubt work for you. The install will require some splicing, but the installation isn't too difficult. I'll link to a video with more details.
    view full answer...
  • Trailer Hitch and Wiring for a 2018 Volvo XC90 T8
    The available trailer hitches for your 2018 Volvo XC90 will require varying degrees of vehicle modification for installation. The Curt hitch # C53HR does not require any drilling but does require some fascia trimming and heat shield modification. I have linked the instructions for installation for you. This hitch is listed as a fit for all styles of the 2018 XC90 including the T8. Curt hitch # C13233 does require drilling but does not require trimming the fascia. It does require modifying...
    view full answer...
  • Is Bumper or Fascia Trimming Required to Install Curt Trailer Hitch on a 2016 Volvo XC90
    To install Curt trailer hitch # C13233 on your 2016 Volvo XC90 there is an underbody heat shield that will need to be trimmed, see the linked instructions, but the fascia/bumper does not have to be trimmed. I have included a picture of what the hitch looks like once installed. You can see that the bumper and other pieces remain intact. If you plan on doing some towing I recommend etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and...
    view full answer...
    Image 1 for
  • Parts Needed To Pull Utility Trailer Behind a 2016 Volvo XC90 Using a Hidden Hitch Trailer Hitch
    Yes, you are able to tow a 6x12 utility trailer with the Hidden Hitch by Draw-Tite Trailer Hitch Receiver # DT82GR on your 2016 Volvo XC90. It is recommend to use the Quick Links # RM-910022 for attaching the trailers safety chains and you will need a Ball Mount # 3371803307. Your trailer likely has a 4-way flat and will need the Curt T-Connector Vehicle Wiring Harness # C56285 installed on your XC90 to connect to.
    view full answer...
  • Recommended Trailer Hitch for 2017 Volvo S-90 T6
    For your 2017 Volvo S-90 sedan with T6 trim (whether the T6 Momentum or the T6 Inscription), the Curt Trailer Hitch Receiver # C13305 is a confirmed fit. It is a bolt on installation with no drilling required but there is some rear fascia trimming required. I've attached the installation details to assist. If you are interested in wiring for towing or accessories, I recommend the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56285 which is also a confirmed fit.
    view full answer...
    Image 1 for
  • Which is The Best Receiver and Which is The Easiest To Install On a 2017 Volvo XC90?
    The Stealth Hitches Hidden Trailer Hitch Receiver w/ Towing Kit # SH27FRT is going to be the best receiver for your 2017 Volvo XC90. This allows you to remove the receiver tube or ball mount when not needed providing you a clean factory appearance. It also includes the trailer wiring needed for adding a 7-way trailer connector which will integrate into the factory wiring. This is a more difficult install than one like our etrailer Receiver # e53KR as it will involve removing the rear bumper...
    view full answer...
  • Class III Trailer Hitch Availability for 2016 Volvo XC90
    The 2016 Volvo XC90 is part of the car's second generation, along with the 2014 and 2015 model years. For this vehicle we offer Curt Class III hitch # C13233. If used for non-trailer loads like a bike rack the hitch must be supported with a strap # 18050 per Curt warranty requirements. For a ball mount you can use # C45030 and either 2-inch hitch ball # 63845 or 2-5/16-inch ball # 63847. For a hitch lock use part # e98880. For a wiring harness you can use # C56285 from Curt. This wiring...
    view full answer...
  • 2017 Volvo XC90 Trailer Hitch and Brake Controller Recommendation
    First let's start with a hitch for your 2017 Volvo XC90. The Curt hitch part # C53HR that you referenced is the way to go as it doesn't have a visible crosstube. Now for a brake controller there's no reason you couldn't install an aftermarket one from us and not worry about it affecting any safety programs on your vehicle. I am not sure what the guy at the dealer was thinking but our controllers install totally outside of the computer of the vehicle so there would be no interference. That...
    view full answer...
  • Trailer Hitch and Wiring Recommendation for 2018 Volvo XC90
    For your 2018 Volvo XC90 the Curt hitch part # C53HR is the correct fit and the one you'd want. The other two part numbers you mentioned are not active, so they are no longer available. For trailer wiring you'd then want the Curt # C56285 which is a confirmed custom fit that will install easily. 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 a 2-3/4 inch rise...
    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 Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video by:
Joshua S
Employee Jonathan Y
Video by:
Jonathan Y
Employee Thomas T
Video by:
Thomas T
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Kristen H
Written by:
Kristen H
Employee Shane H
Test Fit:
Shane H
Employee Jacob H
Test Fit:
Jacob H
Employee Ryan G
Test Fit:
Ryan G

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.