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  1. Tow Bar Wiring
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Curt Universal Tail Light Wiring Kit for Towed Vehicles

Curt Universal Tail Light Wiring Kit for Towed Vehicles

Item # C63CR
Retail:$106.95
Our Price: $69.83
You Save: 35%
Tow Bar Wiring

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Connect your towed car's lighting system to your RV to activate the signal lights required for towing. This universal harness wires in to your vehicle's existing wiring with the included connectors. Great Prices for the best tow bar wiring from CURT. Curt Universal Tail Light Wiring Kit for Towed Vehicles part number C63CR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (73)
  • Q & A (0)
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CURT Tow Bar Wiring - C63CR

  • Wiring Harness
  • Splices into Vehicle Wiring
  • Tail Light Mount
  • Universal
  • CURT

Connect your towed car's lighting system to your RV to activate the signal lights required for towing. This universal harness wires in to your vehicle's existing wiring with the included connectors.


Features:

  • Lets you connect your RV's tail, brake and turn signal lights to your towed vehicle's lighting system
    • Provides 4-way flat plug at front of towed car to connect to motor home
  • Wires in quickly and easily
    • Splices into vehicle's electrical system with included butt connectors
    • Color-coded wires with wiring guide for easier installation
  • Integrated block diodes isolate sensitive vehicle electronics from RV signals
  • Includes harness, 4-flat extension, mounting bracket, and hardware
  • 1-Year limited warranty


Wiring Your Vehicle

Typically, wiring your car for flat towing is a tremendous chore. You have to position and mount multiple diodes beneath your car and then splice into the car's wiring. Each wire - for running lights, brake lights, and both turn signal lights - must be connected to a diode. And don't forget to jump the diodes so that the running light signal is sent to both sides of your car.


Or you could just use this Curt wiring harness. This universal-designed system connects to your vehicle's existing wiring. Simply splice into your factory wiring and connect the labeled wires to your factory wiring with the included butt connectors.


Do You Need a Brake Light Relay?

Because your vehicle has a combined lighting system - wherein the brake signals and the turn signals are carried on a single wire - a brake light relay (RM-88400 - sold separately) may be required if you use a supplemental braking system with your towing setup. A supplemental braking system depresses the brake pedal in your towed car every time you apply the brakes in your RV. So, if your towed car's brake lights illuminate when the brake pedal is pressed and the engine is off - as is the case when towing - then you need to install a relay to ensure that the lights on your towed car always act in accordance with the signals sent by your RV via the wiring harness. Without a relay, the brake signal from your towed car will override the turn signal sent by your RV when you slow down to make turns, creating a potential hazard.



58979 Curt RV Tow Harness for Towed Vehicles

Installation Details C63CR Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Curt Universal Tail Light Wiring Kit for Towed Vehicles - C63CR

Average Customer Rating:  4.5 out of 5 stars   (73 Customer Reviews)

Connect your towed car's lighting system to your RV to activate the signal lights required for towing. This universal harness wires in to your vehicle's existing wiring with the included connectors.

by:

I have bought off of you before everything was great this is the first time that I received something that was not what it was supposed to be or was used before the papers on the installation were all wrinkled and dirty and had writing on the ends of the wire were all cut and the connectors were not on I called your company and they made it right and gave me back my money except for my shipping and they told me just to keep it it's no good to me but thank you and I am still buying off of you



by:

Easy to install. great how to video on the etrailer site. The video needa 1 slight improvement to make it more clear which socket (upper or lower) on the tailight housing to plug into.



by:

Product worked as advertised. Great service. Thank you.



by:

Easy to install works as expected.



by:

The order took very long to arrive. There was no help tracking where our order was and when it finally did arrive the day before my installation appointment, it was the wrong product and they couldn't use it.
Now I have to figure out how to return the product

Etrailer Expert

Brooke M.

3/29/2023

I am sorry to hear that. I will have our customer service team reach out to you about return options.



by:
2022 Jeep Grand Cherokee WK - old body

Great diy product with easy to follow instructions that require only basis tools.



by:

Worst nightmare ever! Our mechanic has a person who wires cars for trailers. He could not make it work ($XXX). We were rushed to get it working, before our big summer trip and a Car Electronics Specialist got it working for us ($XXX). I guess I should have gone with a Blue Ox wiring kit. But nothing but this one was recommended to me.

Etrailer Expert

Jenny N.

9/21/2022

We do have several options for towing wiring for a 2007 Toyota Yaris. You can see them in the link below.



by:

You customer service is fantastic !!



by:

Everything needed to wire the tail lights to the rv



by:
2016 Toyota Corolla

Two mislabeled circuits. One on the left and one on the right. Difficult installation. Took two days to complete and my son who works on aircraft avionics was the person to do most of the install. It works when finally all installed correctly. Lots of metering to get this done. We did a more difficult routing through the car and firewall to hide and protect all the wiring. Also ran an additional wire if we ever add trailer hitch and need power for that install.



by:

Did not work for my car. Returned with no problem



by: 11/23/2023

Perfect fit easy to install



by:

The kit was very easy to install thanks to the wire labels and Easy Fast Installation video available online. Now I no longer need the magnetic mickey mouse ear tow lights. Thanks etrailer.

Kenneth H.

7/11/2022

It has worked so well that I have been telling other RVers that tow a vehicle to install the kit. Love youll at Etrailer.



by:
2022 Jeep Cherokee

Great product, i just ordered the wrong one.



by:

service was great and very profesional



by:

Well built, easy to connect & disconnect by myself.
I am glad I spent a little more for a high quality product!



by:
2011 Jeep Liberty

Complete kit. Works as wanted.



by:

etrailer was a great resource for me to establish my towable. Always available, replaced a damaged part with no issues. One of the best online large projects I've had. Went into this expecting the usual battle, but they were great.



by:
2016 Jeep Grand Cherokee

Always the best service.



by:

Awesome and Easy Service!



by:

Package improperly packed. Smaller box crushed by heavier base plate box. Paper dunnage only on top, not separating cartons inside.
Fortunately no apparent damage to product. Will test when installed.
This is a teachable moment for packing department.



by:

Took less than 3 hours to install thanks to excellent instructions. No problems and has worked flawlessly for a year.



by:

Excellent service,correct part were delivered as promised.



by:

Montrell was very helpful. Knowledgeable and very polite. Thank him for me. I will be doing more business with etrailer!



by:

Not what I expected

Etrailer Expert

Jenny N.

4/27/2022

You mentioned in the review that it was not what you had expected and I wanted to see if you could explain in more detail?

Robert

4/27/2022

Inadequate diodes, extra unnecessary wires for my application, I realize it’s universal, but not what I expected.

Etrailer Expert

Jenny N.

4/27/2022

How were the diodes not working for you?

Robert

4/27/2022

When I had the Invisibrake installed, we thought we could tie into the harness, that back-fed to the Invisibrake and locked up the brakes. We then replaced the diods, and everything worked as designed.


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73
Show More Reviews

See what our Experts say about this CURT Tow Bar Wiring

  • Will Curt Universal Tail Light Wiring Kit C63CR Work On 2017 Ford Fusion Being Flat Towed?
    The Curt Universal Tail Light Wiring Kit # C63CR you were looking at is confirmed to fit your 2017 Ford Fusion Hybrid and would be a great option to power your lights while flat towing it. We have not had a chance to install this specific harness on a Fusion yet but I included the installation video on a 2017 Ford Focus for you to take a look at. You will still need a tow bar, base plate kit, safety cables, and a supplemental braking system. If you do not have these let me know and I...
    view full answer...
  • Installation Troubleshooting of Curt Universal Tail Light Wiring Kit on 2013 Lincoln MKS
    You won't need any type of converter when installing the Curt Universal Tail Light Wiring Kit # C63CR on your 2013 Lincoln MKS. However there is a distinct process that you'll want to follow to determine how this system will be installed that tells you whether you've got a 2 or 3 wire system and how to install the unit. It sounds like you might have installed this in a 3 wire configuration but there is no power on the turn signals. I would start by checking any and all ground wires that...
    view full answer...
  • Troubleshooting Running Light Circuit for Curt Flat Tow Wiring on 2019 Ford Ranger
    That definitely doesn't sound good. The brown wires on both sides of the Curt Universal Tail Light Wiring Kit # C63CR should be sending signals since it's for different tail light sides on your 2019 Ford Ranger. It could be a bad diode but it could also be damaged wiring. I recommend adding 12V power to the 4-Way pin with the green wire and then checking the green wire at the butt connectors to see if the signal gets to the end of the wiring. This tells you if the issue is that diode/module...
    view full answer...
  • 2002 Suzuki XL-7 Flat Tow Wiring Recommendation
    I do! To add wiring so your 2002 Suzuki XL-7 tail lights work in tandem with your motorhome lights I recommend the Curt Universal Tail Light Wiring Kit # C63CR which is a simple, yet effective wiring kit. Just splice in the wiring to the tail lights on your XL-7 and then you run the 4-Way connector up to the front of your vehicle and connect it to your motorhome connector! For a complete flat towing setup you will need a base plate kit, tow bar, safety cables, vehicle tow bar wiring,...
    view full answer...
  • Where to Mount Flat Tow Wiring Connector and Breakaway Switch on 2022 Ford Expedition
    I looked up pictures of the front end of your 2022 Ford Expedition and the best place to put the tow bar wiring connector and the breakaway switch would be the the lower front bumper skirt like you mentioned. This is where this has to install on most vehicles.
    view full answer...
  • Are Diodes of Curt Universal Tail Light Kit part # C63CR Designed to be Replaced
    The diodes of the Curt Universal Tail Light Wiring Kit for Towed Vehicles # C63CR that you referenced were not designed to be replaced. They are very reliable though so it's not something you'd really need to worry about. They are under the black wire loom.
    view full answer...
  • Can Curt Tow Bar Wiring Kit C63CR Install on Truck with Separate Turn Signals Brake Lights
    The Curt tow bar wiring kit part # C63CR that you referenced can install on a vehicle that has separate taillights like you have but there is a different wiring required when installed on a vehicle like then instead of a combined setup. You would run the green wire to the right turn signal, the red wire to the brake light circuit, the yellow wire to the left turn circuit, and the brown wire to the taillight circuit.
    view full answer...
  • Wiring Recommendation for 2015 Volkswagen Golf SportWagen Lights Being Towed on Trailer
    You can use the Tail Light Isolating Diode System with Wiring Harness # 38955 on your 2015 Volkswagen Golf SportWagen to activate the lights but I recommend using something with better wiring connections like the Curt Universal Tail Light Wiring Kit # C63CR instead. The Curt system uses heat shrink butt connectors to help protect the wiring better and it operates essentially the same way as the Hopkins kit you were looking at. We sure you have both this wiring and your trailer wiring...
    view full answer...
  • Flat Tow Wiring Harness for a 2023 Jeep Wrangler 4xe
    It looks like you changed your order to the Curt Universal Tail Light Wiring Kit for Towed Vehicles # C63CR for your 2023 Jeep Wrangler 4xe. You made the right call switching because this is what you would need for flat towing your Jeep Wrangler 4xe. For a complete flat towing setup you will need a base plate kit, tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and possibly a high-low adapter. If you do not have all of these components just let me know and...
    view full answer...
  • Tow Bar Wiring Solution for 2011 Lincoln MKS
    There isn't a plug and play tow bar wiring harness that fits your 2011 Lincoln MKS so what you'd need is a diode kit like the part # RM-15267 which does splice into your vehicle wiring but it's the simplest and best solution.
    view full answer...
  • What Wire Harness Will Connect My RAV4 To My Motorhome While Dolly Towing.
    Yes, you can use the Curt Universal Tail Light Wiring Kit for Towed Vehicles # C63CR to sync your motorhome lights to your 2012 Toyota RAV4. This part will make the RAV4's lights work as a combined system while it is being towed. It is legal for the RAV4 to be combined while being towed, even if it isn't when driving. This kit will only work if your motorhome already has a 7 way and 4 way flat since the dolly will take up the 7 way connector on the motorhome. If you only have a 7 way...
    view full answer...
  • Tow Bar Wiring Recommendation for 2020 Jeep Gladiator
    For your 2020 Jeep Gladiator we have diode style tow bar wiring kits like the part # RM-15247 which would would great but we do not have any custom fit kit like you may be looking for. I did attach and install video for the # RM-15247 on a similar 2021 Gladiator for you to check out as well. This kit once installed will activate your Gladiator taillights while it's being flat towed and comes with a coiled wire to go between the tow vehicle and the towed vehicle.
    view full answer...
  • Correct Fuse Bypass for Flat Towing 2010 Chevy HHR
    The correct fuse bypass needed for flat towing a 2010 Chevy HHR is the Roadmaster FuseMaster Fuse Bypass - 13" - 20-Amp Mini-Fuse # RM76511.
    view full answer...
  • Is The Curt Towed Vehicle Wire Harness # 52108 Available
    We unfortunately do not currently offer the Curt 52108 so you would need to reach out to Curt directly for it or go with one of the splice-in diode kits that we do offer for your 2023 Chevy Colorado. If you do decide to go with a splice-in kit I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267. This kit comes with everything you'll need to transfer your motorhome's traffic signals to the tail lights of the Colorado.
    view full answer...
  • Which Blue Ox Base Plate Kit FIts 2019 Buick Envision
    I know it's confusing but the easy answer is that both "fit". That's because the # BX1518 is the same as the BX1519 so what you would want is the # BX1518 for your 2019 Buick Envision.
    view full answer...
  • Will The Curt Universal Tail Light Wiring Kit Also Activate The Brakes On The Towed Vehicle
    No, the Curt Universal Tail Light Wiring Kit for Towed Vehicles # C63CR is just to transfer your turn and braking signals from the motorhome through your towed vehicle so that drivers behind you can see them. To activate the brakes in your towed vehicle you would need a supplemental braking system like the Brake Buddy Select 3 Portable Supplemental Braking System # HM39524. This braking system offers intense, emergency braking or steady, smooth braking in a single portable system. Easily...
    view full answer...
  • Wire Harness For Towing 2019 Dodge Grand Caravan
    If you are going to flat tow a 2019 Dodge Grand Caravan I recommend the Curt Universal Tail Light Wiring Kit for Towed Vehicles # C63CR. This will link up your lights to match the motor home. It is not a plug in play and requires some wire splicing but it is not crazy hard to do.
    view full answer...
  • Trailer Wire Harness for 2013 can am Spyder ST
    While we do not have a custom wire harness, we do have the Curt Universal Tail Light Wiring Kit for Towed Vehicles, # C63CR. This will work but is not a pug and play solution as it requires cutting and splicing of wires.
    view full answer...
  • Is Curt Tail Light Wiring for Flat Towing Compatible With LED Lights
    I can confirm that a vehicle with LED lights can absolutely use the Curt Universal Tail Light Wiring Kit for Towed Vehicles # C63CR.
    view full answer...
  • How Does Curt Universal Tail Light Wiring Kit For Towed Vehicles Get Installed On 2017 Ford Fusion?
    To find the correct wires on the taillight connector of your 2017 Ford Fusion to connect to the Curt Universal Tail Light Wiring Kit for Towed Vehicles # C63CR you will need to use a circuit tester like # PTW2993 to test each wire going to the tail lights. Your Fusion has combined wiring meaning the turn signal and brake lights are shared so you will need to find the factory wire that comes on when pressing the brake pedal and connect the red wire of the Curt harness in to that wire. Next...
    view full answer...
  • Tow Bar Lighting Solution for 2022 Ford F-150 with LED Taillights
    We have tow bar lighting solutions for your 2022 Ford F-150 that has LED taillights but we don't have anything that is plug and play as that's pretty rare to be available for vehicles still. We did have the chance to install the Curt wiring kit part # C63CR on a similar 2020 Ford F-150 as yours though which I attached an install video link to on this page that would walk you through the entire process. This will take out a lot of the guesswork but it does still require splicing into the...
    view full answer...
  • Does It Matter Which Wire To Tap Into When There Are Two Wires In Each Jack?
    One wire is likely the ground and the other is the power side that you will want to splice into. Using a volt meter like the Performance Tools # PT89ZR you can determine which is the power wire. If you have two powered wires, then yes, it is probably going to the other side and it would not matter which one that you choose.
    view full answer...
  • Blue Ox Base Plate Kit for 2017 Ram 1500 Lone Star
    The Lone Star is essentially the Big Horn so you'll need the Blue Ox Base Plate Kit # BLU74FR for your 2017 Ram 1500. For a complete flat towing setup you will need a base plate kit, tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and possibly a high-low adapter. If you do not have all of these components just let me know and I can make some additional recommendations for you.
    view full answer...
  • Can You Install Both Trailer and Flat-Tow Lights on a 2020 Jeep Wrangler Unlimited
    I have an excellent option for you to setup your 2020 Jeep Wrangler Unlimited for both trailer towing and dinghy towing. The Curt T-Connector Vehicle Wiring Harness part # C56407 will transmit the trailer lights and the Curt Custom Tail Light Wiring Kit for Towed Vehicles part # C96JR will transmit the motorhome lights. These are both plug-in play options with no splicing required.
    view full answer...

Do you have a question about this Tow Bar Wiring?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee David F
Test Fit:
David F
Employee Bradley B
Test Fit:
Bradley B
Employee Kristina F
Written by:
Kristina F

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