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  1. Tow Bar Wiring
  2. Hopkins
  3. Wiring Harness
  4. Plugs into Vehicle Wiring
  5. Tail Light Mount
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Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Item # HM56200
Our Price: $70.68
Tow Bar Wiring

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Shipping Weight: 1.47 lbs
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Hopkins Custom Tail Light Wiring Kit for Towed Vehicles Wiring Harness HM56200
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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. Great Prices for the best tow bar wiring from Hopkins. Hopkins Custom Tail Light Wiring Kit for Towed Vehicles part number HM56200 can be ordered online at or call 1-800-940-8924 for expert service.
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Hopkins Tow Bar Wiring - HM56200

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

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.


  • Lets you wire your vehicle to accept your RV's tail, brake, and turn signal lights for flat towing
    • 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.

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.

11156200 Hopkins Plug-In Simple Dinghy Towing Harness

Replaces 56200

Installation Details HM56200 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles - HM56200

Average Customer Rating:  4.8 out of 5 stars   (403 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.


The wiring product was perfect, but the video instructions for my Jeep were even more perfect!


Best towbar like it better than demco towbar and lighter too works great had it one year so far so good


Simple installation and excellent quality product! I installed this harness on my 2018 Jeep Wrangler. After one year it is still performing flawlessly. Don’t do like I did on my first tow vehicle and pay someone hundreds to thousands of dollars to do something so easy. Thank you etrailer and Hopkins for easy to follow instructions and videos!

Still working like the day I bought it! Great product!
Collins - 12/01/2020


Was fairly easy to install. Works great. Running the wire loom to the front and keeping it out of the moving or hot parts took the longest time. Wire looms are plenty long.


Easy to install, good instructions, makes towing easy


Great kit , very easy to install, this was my third vehicle to use that , I would recommend it to anyone.

Kit as been working great with no flaws , will buy it again if I need for another vehicle and still would recommend to anyone that as a need for this application.
Alain - 07/19/2023

2015 Jeep Wrangler Unlimited

This harness works great for flat towing a Jeep Wrangler. The installation was straight forward and easy. It's nice to not have to run magnetic lights from the rear of the Wrangler to the tow vehicle anymore. Now, I just plug in to the adapter on the front aftermarket bumper.


Relatively easy to install, worst part was routing the wiring to the front of the jeep. The rest was plug and play. I also replaced the flat four way plug with a six pin round.

2014 Jeep Wrangler Unlimited

Great kit - about as plug and play as you can get (still gotta run wires unfortunately)...


Easy install etrailer never fails

2015 Jeep Wrangler

Really simple. The hardest part was running the wires.

Easy install. Clear instrctions
John - 07/17/2023


The kit was a breeze to install and everything fit just like it stated on the instructions. It's as easy as just plug in and go with my 2017 Jeep Wrangler JKU behind my RV. I would highly recommend this product to anyone especially any Jeep owner. etrailer really did their homework on engineering this product for my type of vehicle which made the installation so simple.


Super easy to install once you figure out how to fish the connectors up through the body to the taillights. See YouTube if not sure. I really like that this did not require cutting into my wiring harness. High quality connectors snap into place maintain watertight integrity of the wiring harness. I did go buy plastic armoring for the wires that run the length of the frame, also lots of cable ties.


Very easy to hook up and excellent towi ng.


Made installation a breeze

2014 Jeep Wrangler

Excellent product and even better customer service! It was a real pleasure doing business with I will certainly do so again and I highly recommend folks purchase their needs from you!!


It was received in a timely manner and they a help when I ordered all the items

Jeep Wrangler

This was very easy to install on my Wrangler Unlimited and ties in very well with the existing lights. I do recommend purchasing the RoadMaster Relay kit.


Towed vehIcle lights did not work until an additional ground wire was installed between the two vehicles. It would have been simpler to have had the ground wire in the entire length of the harness.

2017 Jeep Wrangler

Great product easy install. I found out on passenger side it was easier to drill with hole saw to pass wire trough cover .then made gromit out of rubber chiar/table cap .Sliced up side and noched for wires snapped right in. Product works great I would recommend .


Basic plug and play technology. Video instructions on the etrailer website are the best. Everything went according what was on the video. The most difficult part was feeding the wire through the frame from the rear to the front. Using wire loom certainly helped make it easier.

2018 Jeep JL Wrangler Unlimited

Every thing we have received from the company has been great. Thank you for being when we need you.


Kit was perfect, good instructions and looks of good quality.


All parts arrived and installed fast and easy. You rock etrailer!


Works well never had any issues.

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Condition: Like New

Notes: May have damaged packaging or minor cosmetic blemishes.

Our Price: $61.95
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