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  1. Tow Bar Wiring
  2. CURT
  3. Wiring Harness
  4. Plugs into Vehicle Wiring
  5. Custom
  6. Tail Light Mount
Curt Towed-Vehicle RV Harness

Curt Towed-Vehicle RV Harness

Item # C58911
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Tow Bar Wiring

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Lowest Prices for the best tow bar wiring from CURT. Curt Towed-Vehicle RV Harness part number C58911 can be ordered online at or call 1-636-306-4830 for expert service.
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  • Reviews (22)
  • Q & A (0)
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CURT Tow Bar Wiring - C58911

  • Wiring Harness
  • Plugs into Vehicle Wiring
  • Custom
  • Tail Light Mount
  • CURT

CURT towed-vehicle RV harnesses are the ideal solution to connecting your vehicle's electrical system to your RV while dinghy towing.

Each RV harness is made for vehicle-specific application, using OEM-compatible plugs to "T" into the vehicle's wiring without any need for cutting or splicing.

Simply plug the provided 4-way flat connector from the front of the vehicle into the RV's 4-way flat socket. Uses the vehicle's existing tail lights, turn signals and brake lights, eliminating the need to purchase additional lighting. The vehicle's lights operate in conjunction with your RV's lights functioning just like a standard trailer in tow.

  • Connects a towed vehicle to an RV using a standard 4-way flat trailer plug
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • Integrated block diodes isolate sensitive vehicle electronics from RV signals
  • Uses towed vehicles existing tail lights, brake lights, and turn signals
  • Includes harness, 4-flat extension, mounting bracket, and hardware
  • 1-Year limited warranty

58911 Curt Towed-Vehicle RV Harness

This Product Fits The Following Vehicles

California residents: click here

Customer Reviews

Curt Towed-Vehicle RV Harness - C58911

Average Customer Rating:  4.8 out of 5 stars   (22 Customer Reviews)

2015 Fiat 500

This is the simplest solution I found for wiring my 2015 Fiat 500 Pop for towing. I like the simplicity of just plugging the harness between the vehicle wiring and tail light fixture without having to cut or splice any wires.
Minus one star because the wiring extension to the front of the car came up short by about at least a foot from the front center where my plug attaches to my base plate. Not a huge problem for me because I am wiring a 6 pin socket that attaches directly to my Blue Ox base plate. I just used the wire included to connect my RV to the Fiat to make up the difference and connect to my 6 pin socket.
There were good suggestions in the instructions regarding routing the wiring from the back to the front. However, I couldn’t get the fish tape over the wheel wells or under the splash guard. I ended up jacking up each wheel (driver side rear and then front) then removing the tire the wheel well lining. You have to remove a half dozen fasteners on each wheel well liner and wrestle a bit to get the liners out, but it made routing the wiring over the wheel wells easier for me. I also removed three screws (Philips) under the edge of the drivers side splash guard to loosen the edge of guard which made it simple to run the wire extension between the guard and the frame at that location.

Since installation, the wiring to my Fiat 500 tail lights for towing has worked without a problem. I’m pleased.
Max L - 09/28/2021


Good construction of product. Install made easy by good instructions. Happy with the purchase.


The installation went well. The 4flat wire needs to be about a foot longer


Well constructed base plate. I called Blueox with a question and received great service. So glad that I chose etrailer and BlueOx!

2019 Fiat 500

We purchased our road master towing equipment from etrailer, and then added a this wire harness for our towed vehicle. Every time we purchase from them, they exceed our expectations and ship quickly, and provide excellent videos on their products and installation process. They have now earned the place of being my go to, for all things towing and motor home. Keep up the excellent work team etrailer!


Excellent as expected


McKenzie was extremely helpful with advise on all my needs for flat towing Fiat 500. I will keep her as my goto person at etrailer.


We only installed a portion of the kit, since the wiring was already in place from the front of the vehicle to the rear. Everything worked perfectly. The instructions were easy to follow. I would not hesistate to purchase his product again.

2012 Fiat 500

Nice service

2013 Ford Five Hundred

Purchased this tow light harness kit specifically for our 2013 Fiat 500 Pop that will be flat-towed behind our RV. The kit arrived just several days after being ordered and contained all the parts required for installation. The install was surprisingly simple due to the 'plug n' play' feature! It took a little over an hour, but we chose to route the wires slightly different than what was suggested on the instruction sheet. We are happy with the results. The Fiat's lights now work as intended for towing and can easily be removed in the future, if necessary.


All and all the harness is very good, it took about three hours to install. Everything plugged together fine, the only
draw back was the wire lead for the car tail lights could have been a couple inches longer. Going to tow car behind a motorhome and the extra lights will help other people see it.


Has worked perfectly. Only reason for four stars is that it was difficult to install. But once it’s done it’s been fine.

Still working great. Have had zero problems.
Steven J - 02/10/2021


Plug and play is wonderful. Easy to run wire up to the front.

2013 Fiat 500

The cord to the front of the vehicle could be about a foot longer other than that I am very pleased with the package.


Have had no problems at all! It was fairly easy to install and we had zero issues! Thanks for a quality item!




fits perfectly, easy install, works gre at.

2012 Fiat 500





See what our Experts say about this CURT Tow Bar Wiring

  • What Flat-Tow Wiring Kit Doesn't Require Drilling Or Splicing On A 2013 Fiat 500
    I recommend the Curt Towed-Vehicle RV Harness # C58911, it is a custom fit designed for the Fiat 500 and will plug into your factory wire harness without needing to splice wires.
    view full answer...
  • 4-Way Trailer Wiring Harness to Fit a 2015 Chrysler Town and Country
    To tow a trailer with your 2015 Chrysler Town and Country I recommend the Tekonsha # 118534. It's a 4-way wiring connector to power the trailer's lights and it plugs in behind the van's tail lights. You also need to run a hot wire from the harness to the van's battery and insert the included fuse. I've linked the install details and a video from when we installed it. If you also need a trailer hitch reciver I recommend the Draw-Tite, part # 75579, that's confirmed to fit your van. ...
    view full answer...
  • How to Flat-Tow a 2015 Fiat 500
    In order to flat-tow a 2015 Fiat 500 with all four wheels on the ground behind a motorhome you are going to need a tow bar, base plate kit, safety cables, tail light wiring harness, supplemental braking system, and possibly a high-low adapter. There may also be a few other smaller components that are needed depending on the options the vehicle is equipped with. For a tow bar, I recommend the Roadmaster Nighthawk All Terrain Tow Bar part # RM-676. The Nighthawk is one of the best tow bars...
    view full answer...
  • List of Parts Needed to Tow Flat-Tow a 2018 Fiat 500 Abarth
    I have attached a list of parts below that you will need to flat-tow your 2018 Fiat 500 Abarth. Please note, Demco does not make a set of base plates for this vehicle but you can still use your Demco Excali-Bar III Non-Binding Tow Bar part # DM9511013 with the adapter listed below. Demco Tow Bar Adapter for Roadmaster Base Plates part # DM9523001 Roadmaster Crossbar-Style Base Plate Kit part # 522013-1A Curt Towed-Vehicle RV Harness part # C58911 SMI Stay-IN-Play DUO Supplemental Braking...
    view full answer...
    Image 1 for
  • Flat Tow Set-Up For 2015 Fiat 500
    We can help you with this, I have attached a couple short help articles that provide an explanation of the needed parts and their function that you will hopefully find of value. You are looking at five primary components for a safe flat towing setup. These are (1) Base Plates that mount to the front of your 2015 Fiat 500 and provide the mounting point between the car and the motorhome for the (2) Tow Bar. You will also need (3) Safety Cables in case a failure of the Tow Bar occurs, this...
    view full answer...
  • Recommended Supplemental Braking System to Flat Tow a 2019 Fiat 500
    The supplemental braking system I recommend for a 2019 Fiat 500 is the Stay-IN-Play DUO Supplemental Braking System part # SM99251 if the coach has hydraulic brakes or the Air Force One Supplemental Braking System part # SM99243 if the coach has air brakes. The Stay-IN-Play and Air Force One are two of my favorites because they are generally easier to install than most other permanent options. If you will not be installing the system yourself then the easier install means you could potentially...
    view full answer...
    Image 1 for
  • Recommended Flat Towing System for 2018 Fiat 500 Pop
    The Roadmaster EZ2 Base Plate Kit - Removable Arms # 522013-1A is a confirmed fit for your 2018 Fiat 500 Pop. Demco has not confirmed the fit of the # DM9518300 for your vehicle at this time. For a complete system, I also recommend the following components which are confirmed to fit your vehicle: Roadmaster Falcon 2 Tow Bar - 6,000 lbs # RM-520 Safety cables # RM-643 Curt Towed-Vehicle RV Harness # C58911 Blue Ox Patriot Radio Frequency, Portable Braking System - Proportional # BRK2019 12...
    view full answer...
  • Can the etrailer Trailer Hitch Receiver Lock Be Used for Flat Towing?
    Neither the item # e98882 and the item # e98880 locking hitch pins have an official weight capacity because it exceeds what the trailer hitches are capable of. They can easily handle a 2015 Fiat 500 being flat towed behind your Forest River RV. I have some recommendations on parts you will need to flat tow your 2015 Fiat 500. You are going to need a tow-bar, a baseplate kit, a safety cables, tail light wiring harness, supplemental braking system, and possibly a high-low adapter. I have...
    view full answer...
  • Recommended Base Plates to Use with Blue Ox Aventa Tow Bar on 2017 Fiat 500
    You can definitely continue to use your existing Blue Ox Aventa LX Tow Bar with your 2017 Fiat 500. You will just need a compatible base plate kit for the vehicle. If your Fiat is the Lounge or Pop model I recommend the Blue Ox Base Plate Kit # BX2801. If you have the Abarth model I recommend the Blue Ox # BX2805. Both kits are compatible and will work great with your Aventa LX Tow Bar. If you don't have them already, you will also need a lighting solution and a supplemental braking...
    view full answer...
  • Recommended Tow Bar for a 2014 Fiat 500
    The Roadmaster Falcon All Terrain Tow Bar part # RM-522 is what I recommend for a 2014 Fiat 500 (All Models). The Roadmaster Falcon All Terrain has a non-binding design so you can release the arms on unlevel ground without a tool unlike the Roadmaster Falcon 2 Tow Bar part # RM-520 which just makes using the tow bar much easier. The Roadmaster Falcon All Terrain also installs on the motorhome when not in use so you don't have to worry about storing the tow bar unlike the Roadmaster Tracker...
    view full answer...
  • What is the Best Way to Tow a 2012 Fiat 500 Behind a Motorhome
    According to the owner's manual for a 2012 Fiat 500 with a manual transmission (excluding 500c and 500 Abarth), the vehicle can be flat towed with all four wheels down and dolly towed with either the front two or rear two wheels off of the ground. In regards to which is better between flat-tow and dolly tow, they both have their benefits. If you have a leased vehicle or don't want to make any modifications as you plan to exchange it, dolly tow would be your best option but if you plan to...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
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 Amanda M
Written by:
Amanda M

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