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Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Item # HM56103

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Retail:$79.99

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Tow Bar Wiring

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Hopkins Custom Tow Bar Wiring - HM56103
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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 HM56103 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (2)
  • Q & A (2)
  • Videos (1)
  • Photos
  • Why etrailer?

Hopkins Tow Bar Wiring - HM56103

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 behind 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 behind 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.



11156103 Hopkins Plug-In Simple Dinghy Towing Harness

Replaces 56103





This Product Fits The Following Vehicles

2007 - 2013 Chevrolet Avalanche

2014 - 2014 Chevrolet Suburban

2007 - 2014 Chevrolet Tahoe

2007 - 2014 GMC Yukon

2014 - 2014 GMC Yukon XL

2007 - 2013 Chevrolet Suburban 1500

2007 - 2013 GMC Yukon XL 1500

2007 - 2013 Chevrolet Suburban 2500

2007 - 2013 GMC Yukon XL 2500



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 - HM56103 Review

Speaker 1: Today we're taking a look at the Hopkins custom tail light wiring kit for towed vehicles. This product works with different GM vehicles so to ensure that it is a fit for your vehicle you use the vehicle fit guide, which is located at etrailer.com. Now once installed this unit lets you wire your vehicle to accept your RV's tail, brake, and turn signal lights for flat towing applications. It wires the towed vehicle as a combined system so that the brake and turn signals travel along the same wire. It provides a four way flat plug at the front of the towed vehicle to easily connect to the motor home. Now this is designed to plug in quickly and easily.

You don't have to worry about splicing or cutting any wires.The connection points are located behind your vehicles taillights. These right here, these are T connectors. These are custom fit for your vehicle and they match up perfectly with the ports on the vehicle. They plug in, they snap lock together providing that nice tight secure fit. The wiring runs through this convertor box here.

This is a weather proof box that keeps the built in diodes fully protected. Also, this system will not interfere with the electrical system when the towed vehicle is not hooked up to the RV, so you don't have worry about that.Again, it is custom designed to work with your vehicle. It includes everything laid out here on the table. You get the wiring harness. You get the mounting brackets to secure the four way flat at the front of the towed vehicle.

You get the installation hardware. These screws are to mount the bracket. This one's to make a ground connection, which is your white wire, which has a pre attached ring terminal to it. You got zip ties to secure any slack or excess in the wiring. Then you have terminal grease that can be applied to the connection points to prevent corrosion to the connection points.Now and extension loop for connecting the towed vehicle to the RV is sold separately and available at etrailer.com.

Also, a brake light relay may be required if used with a supplemental braking system. That part's available and sold separately at etrailer.com with part number RM-88400. That's going to do for today's look at the Hopkins Custom Tail Light wiring kit for towed vehicles.


Customer Reviews

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles - HM56103

Average Customer Rating:  5.0 out of 5 stars   (2 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.

- HM56103
by:
2009 Chevrolet Suburban

We ordered tow mounts, road master tow bar and some accessories from etrailer for a 2009 Suburban. All the items arrived within a few days and packed in secure boxes. After just a little drilling the mounts went right on, the instructions are very detailed and easy to follow. I highly recommend etrailer.com for your towing needs. 427067



- HM56103
by:

Halley was Great verry helpful fast shi pping 607738


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Info for this part was:

Edited by:
Leah B
Photos by:
Jackie C
Written by:
Lindsey S
Expert Research:
Jameson C
Installed by:
Cole B
Photos by:
Sam P
Photos by:
Zach O
Updated by:
Sarah W
Updated by:
Alexander C

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