bing tracking image
  1. Flat Tow Wiring Harness
  2. Hopkins
  3. Wiring Harness
  4. Plugs into Vehicle Wiring
  5. Tail Light Mount
  6. Custom
Hopkins Custom Tail Light Wiring Kit for Towed Vehicles
Hopkins

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Part Number: HM56109
In Stock
$69.50
Retail:$106.99
You Save: 35%
Flat Tow Wiring Harness

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Add to cart
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos

Need help with installation?
Locate installers near me
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. 1-800-940-8924 to order Hopkins flat tow wiring harness part number HM56109 or order online at etrailer.com. Free expert support on all Hopkins products. Great prices and Fastest Shipping for Hopkins Custom Tail Light Wiring Kit for Towed Vehicles. Flat Tow Wiring Harness reviews from real customers.
  • All Info
  • Reviews (13)
  • Q & A (0)
  • Videos (1)
  • Photos

Hopkins Flat Tow Wiring Harness - HM56109

  • 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. 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.



11156109 Hopkins Plug-In Simple Dinghy Towing Harness

Replaces 56109



This Product Fits The Following Vehicles



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 All About the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Hello neighbors, it's Brad here at etrailer, and today we're taking a look at the Hopkins plug and play diode wiring kit for your flat towed vehicle. Now, these are not available for all vehicles. There's a bunch of different vehicles that are able to be flat towed, and only a few of 'em have this wiring kit. But if your vehicle does fit into our fit guide, and this is a confirmed fit, you're in luck. Because this is truly just a plug and play, there's no cutting or splicing required. Go ahead and plug these in.

So pretty straightforward. It can only really go in one way. So we'll get this one popped in. Take the other connector plug here, plug that into the tail light. Now other diode kits are pretty straightforward, but there is cutting and splicing that needs to be done to the wiring on the taillight.

And a lot of these small taillight wires from the factory are pretty small and you're putting spade connectors on there and they do work well. But if you do have a loose connection, you may have faulty wiring, and there are quite a few points where you're gonna tie into those, and that's the glory of this kit. You can literally just plug this in, and it's gonna be a factory style connection, making it super easy. You don't have to worry if all of your crimps weren't done properly. Now with this kit, you are still gonna have to run wiring underneath your vehicle, and during that process you're gonna wanna make sure that you don't hit any exhaust, the suspension parts, or anything moving really, just, you want to keep that wiring nice and safe.

And following factory wire loom is generally a pretty safe route to get back to your plugs, and then up to the front. So your six pole is going to have your wiring up front and through the RM umbilical that's gonna transfer not only a 12 volt, so if you're using a charge line, but also your running lights, your brake lights, as well as your turn signals, and that's gonna keep you safe and legal. Now, diode wiring is a really nice thing to have if you plan on flat towing quite often. And that's because a lot of other vehicles that you see flat towed, you're gonna see some magnetic lights that are stuck here. And a lot of times you can get wireless ones, but sometimes you have to run a cable all the way to the RV.

And diode wiring is just nice, because when you plug in your umbilical, you not only can you send 12 volt power through there to a charge line if you want to, but also you're gonna mimic all the turn signals, running lights, and brake lights on the towed vehicle. Now diode wiring is gonna be part of the five main components required for flat towing your vehicle. So along with that, you also have your base plate, which is gonna be the attachment point on the front of your car, your tow bar, which you'll connect it to. You also have your safety cables here, just in case of an accidental disconnect. It's gonna hold that vehicle together, and also your braking system, which will have a breakaway switch allowing that vehicle to come to a stop if it does become disconnected. But also it's going to slow and stop the vehicle as you apply the brakes on the RV. When it comes to setting up your vehicle for a flat tow, we have plenty videos available on a variety of different cars. So using the fit guide on our website is gonna help you find those videos to make sure that you get your installation done. And we're always here to help. So if you need to, you can always give us a call, and we'll make sure that you're able to flat tow your vehicle. Now diode wiring is pretty common to go with the Roadmaster. That's what we see a lot of with our installs, and it's a great system. It's universal, so it works on pretty much every vehicle. But if your vehicle fits into the fit guide, having this Hopkins wiring, I highly suggest it. It's super easy and it just takes a little bit of headache and guesswork out of splicing into wires. This one, plug and play, ready to go. So if this is an option for your vehicle, I highly suggest it..

Customer Satisfaction Score:


Customer Reviews

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles - HM56109

Average Customer Rating:  4.7 out of 5 stars   (13 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.

by:
2010 Chevrolet Colorado

It worked out well. Clean and very easy and all my lights worked from the start with no problems. I would buy it again.



by:
2005 GMC Canyon

Easy installation an great product. Shipping took a little longer than I wanted but is what is as I finally received it. Only reason I even mention shipping is first shipment took 2 days but was wrong item which they gladly made rite an shipped rite product but it took 6 days to receive an i was on a time crunch after first one being wrong



by:

Ordered a wiring harness for towing a vehicle behind my motorhome. Danielle was super helpful and a pleasure to work with during the ordering process. She was able to expedite the order and it arrived when it was supposed to arrive. Installation was very easy and works as it should. Very impressed with etrailer customer service.



by:

This kit is one of the rare things that actually turn out better than I expected! It fit exactly as advertised and has worked without an issue since the day I installed it. I'm really happy with this wiring kit!!



by:

Have not been able to utilize items yet but do look exactly like i wanted, thank you.



by:

Easy to install



by:

Works great.



by:

Easy just plug in and drive



by:

Haven't installed it yet but the customer service was great



by:

Easy to install



by:
2006 Chevrolet Colorado



by:



by:


13
13

See what our Experts say about this Hopkins Flat Tow Wiring Harness

  • Installation of Flat Towing Wiring Harness HM56109 in 2011 GMC Canyon
    Hopkins Plug-N-Tow (R) Vehicle Wiring Harness # 41165 includes a converter module that processes the lighting signals from your 2011 GMC Canyon before sending them on to your trailer. This module will be damaged if fed lighting signals from a motorhome. Before you flat tow the Canyon unplug the trailer harness # 41165 and plug in the Flat Towing harness # HM56109. You will also want to check your GMC owner's manual for any instructions regarding preparing the vehicle for flat towing....
    view full answer...
  • Tow Bar Lighting Recommendation for a 2005 Chevy Colorado
    Trailer wiring cannot be used in reverse to power the taillights it is connected to for tow bar lighting. You will need to go with a tow bar lighting like the part # HM56109. This will plug inline with your current taillight harnesses (most likely like your current trailer wiring), and will work to power the taillights while your 2005 Chevy Colorado is being flat towed. I attached a help article on flat towing for you to check out as well.
    view full answer...
  • Blue Ox Parts Needed to Flat-Tow a 2010 GMC Canyon
    In order to flat-tow a 2010 GMC Canyon you'll need a base plate kit, tow bar, safety cables, braking system, and lighting. I have attached for you below a list of parts using the ones you were interested in. Blue Ox Base Plate Kit part # BX1656 Blue Ox Acclaim Tow Bar part # BX4330 Blue Ox Patriot Portable Braking System part # BLU37TR Roadmaster 12 Volt Outlet Kit part # RM-9332 Hopkins Custom Tail Light Wiring Kit for Towed Vehicles part # HM56109
    view full answer...
  • Will the Roadmaster Even Brake # RM-9400 Work on a 2008 GMC Canyon
    The Roadmaster Even Brake Portable Braking System, # RM-9400, will work on your 2008 GMC Canyon as long as it does not have an active power assist braking system. The need for the Brake Light Relay, # RM-88400, will depend on the tail light wiring harness you choose to use. Since your GMC Canyon has a separate tail light system, meaning the turn signal and brake lights use separate bulbs in the tail light assembly, you will only need the brake light relay if you use the Hopkins Wiring...
    view full answer...
  • Recommendations For Parts Needed to Tow 2012 GMC Canyon With Towbar Blackhawk 2 Behind Motorhome
    When towing a vehicle with a motorhome there are five components needed: baseplates for the towed vehicle, towbar, safety cables/chains, lighting system, and supplemental braking system. Starting with the baseplate, as long as your 2012 GMC Canyon is not the Z71 or Xtreme model, then RoadMaster XL Base Plate # 3122-1 will fit your truck. If your 2012 Canyon is the Z71 model then RoadMaster XL # 3164-1 is the correct baseplate kit for your truck. Both kits have removable arms and will...
    view full answer...

Do you have a question about this Flat Tow Wiring Harnes?


Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Lindsey S
Written by:
Lindsey S
Employee Dustin K
Video by:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Bradley B
Installed by:
Bradley B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


Product Experts Available Now!
Call 1-800-940-8924