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Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Item # HM56114

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Retail:$81.69

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Tow Bar Wiring

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Hopkins Custom Tail Light Wiring Kit for Towed Vehicles Tail Light Mount HM56114
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Product Images


  • Wiring Harness
  • Plugs into Vehicle Wiring
  • Hopkins
  • Tail Light Mount
  • Custom
Wire your vehicle and get the signal lights required for flat towing without having to splice into your wiring with this custom, plug-in harness. Integrated diodes prevent feedback from RV for safe operation. Wires as combined lighting system. Lowest Prices for the best tow bar wiring from Hopkins. Hopkins Custom Tail Light Wiring Kit for Towed Vehicles part number HM56114 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (1)
  • Q & A (1)
  • Videos (1)
  • Photos
  • Why etrailer?

Hopkins Tow Bar Wiring - HM56114

Wire your vehicle and get the signal lights required for flat towing without having to splice into your wiring with this custom, plug-in harness. Integrated diodes prevent feedback from RV for safe operation. Wires as combined lighting system.


Features:

  • Lets you wire your vehicle to accept your RV's tail, brake, and turn signal lights for flat towing
    • Wires towed car as combined system so that brake and turn signals travel along same wire
    • Provides 4-way flat plug at front of towed car to connect to motor home
  • Plugs in quickly and easily - no cutting or splicing of wires
    • Connection points are located below your vehicle's tail lights
  • Prevents electrical feedback to safeguard towed car's electrical system
    • Weatherproof box keeps built-in diodes protected
  • Won't interfere with electrical system when towed car is not hooked up to RV
  • Custom designed for your vehicle
  • Includes wiring harness, mounting bracket, and installation hardware
    • Extension loop for connecting towed car to RV is sold separately
    • Brake light relay (RM-88400 - sold separately) may be required if used with supplemental braking system
  • 90-Day warranty


Wiring Your Towed Car with Hopkins

Wiring your car for flat towing has never been easier. No more testing wires or splicing into your electrical system. No need to painstakingly position multiple diodes beneath your vehicle. No worries about voiding your warranty. With this custom-fit towed vehicle wiring kit from Hopkins, all you have to do is plug the harness into your vehicle's existing wiring, which is located below your car's tail light assemblies. No cutting, tapping, or splicing is required.


After plugging in the wiring harness, use the included bracket to mount the 4-way flat connector at the front of your towed car. An extension loop (sold separately) is required to connect your towed car to your RV.


Separate vs. Combined Lighting Systems

Some automobiles operate on a 3-wire system, wherein the brake signal and the turn signals travel along different wires to illuminate different lights. (Typically, these vehicles have amber turn signals.) This is referred to as a "separate lighting system." When you hook up for flat towing using this harness, your towed car's lighting system will operate in a combined fashion regardless of whether it typically has combined or separate lighting. This means that the brake and turn signals sent by your RV to your towed car will be carried on a single wire. As a result, your car's brake lights will do the flashing for the turn signals. Your vehicle will still function as designed when not hooked up to your RV.


Do You Need a Brake Light Relay?

Because this harness wires your vehicle as a combined system, 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.



56114 Hopkins Plug-In Simple Dinghy Towing Harness



HM56114 Installation InstructionsInstallation Details HM56114 Installation instructions

This Product Fits The Following Vehicles

2015 - 2019 GMC Yukon



California residents: click here


Video of Hopkins Custom Tail Light Wiring Kit for Towed Vehicles


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Hopkins Tow Bar Wiring - Plugs into Vehicle Wiring - HM56114 Review

Today we're going to be taking a look at the Hopkins custom taillight wiring kit. This product fits certain years of the GMC Yukon. To ensure that this is a fit for your vehicle you can use the vehicle fit guide located at etrailer.com. This system lets you wire your vehicle to accept your RV's tail, brake, and turn signal lights for flat towing applications. It simply wires the towed car as a combined system so that the brake and turn signals travel along the same wire. It's going to provide a four way flat plug at the front of the towed vehicle to connect to the motor home.

It's going to come with a dust cap that can be used to cover up these connection points here when nothing's connected to the plug. Now this is designed to plug in quickly and easily. You don't have to worry about cutting or splicing any wires. The connection points are located below your vehicles taillights. The connectors with the yellow wire, it's going to go to the drivers side of your Yukon. The connectors with the green wiring, that's going to run over to the passengers side of the Yukon.

This is a custom fit harness. These plugs are going to match up perfectly with the ports on the vehicle and they're going to snap lock together for a nice tight secure fit. Then you can see here that you got plenty of wiring to run the unit all the way up to the front of the vehicle. That way your connection point with the four way is easily accessible. It's going to come with this diode converter here. The unit's designed to prevent electrical feedback, which is going to safeguard the towed cars electrical system.

It's a nice weatherproof box that keeps the built in diodes protected. You can mount that in an out-of-the-way location using the included cable ties that's provided with the kit. It's already pre-wired in. The unit also won't interfere with electrical system when the towed car is not hooked up to the RV. Again it is custom designed for your vehicle.

You can see that it's going to come with all the necessary wiring. It's also going to come with a mounting bracket. This would get installed at the front of the vehicle. What that does is it simply holds the four way connector. It's also got a cut out so that way you could still use the dust cap. But it holds the four way connector at the front of the vehicle, that way you can always access the connection point when you're ready to flat tow the Yukon. It comes with the mounting bracket. It's going to come with the necessary hardware to get that installed. It's going to come with a terminal grease packet. You want to apply that to the connection points like the plugs and the four way. That's going to help prevent corrosion to those connection points. It's also going to come with a grounding screw, you will need to make a ground connection close to the plug at the front of the vehicle. That's your white wire and it has a ring terminal already pre-attached to it. It's going to come with some more zip ties that way you can secure any excess or slack in your wiring. Now if you need an extension loop for connecting the towed car to the RV, that is sold separately. A brake light relay maybe required if this is used with a supplemental braking system. That's available and sold separately at etrailer.com. That's going to do it for today's look at the Hopkins custom taillight wiring kit.


Customer Reviews

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles - HM56114

Average Customer Rating:  5.0 out of 5 stars   (1 Customer Reviews)

Wire your vehicle and get the signal lights required for flat towing without having to splice into your wiring with this custom, plug-in harness. Integrated diodes prevent feedback from RV for safe operation. Wires as combined lighting system.

- HM56114
by:
2012 GMC Yukon

installed one on are 2012 Yukon worked great very easy to install no cutting and splicing wires 488055


1
1

Ask the Experts about this Hopkins Tow Bar Wiring
Do you have a question about this Tow Bar Wiring?


  • Flat Towing Setup For 2016 GMC Yukon Denali
  • As long as the 2016 GMC Yukon Denali has 4WD with a two-speed transfer case that has a Neutral and 4 wheel drive low setting, you can flat tow it with all 4 wheels on the ground behind the 2018 Allegro Bus. If the GMC has 2WD, it has to be towed with a dolly with the rear wheels off the ground. When flat towing or dolly towing, the battery does need to be disconnected. You can use a Roadmaster quick battery disconnect part # RM-766. The Roadmaster battery disconnect allows you to wire in...
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Info for this part was:

Edited by:
Lindsey S
Installed by:
Cole B
Photos by:
Zach O
Written by:
Alexander C

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