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  1. Flat Tow Wiring Harness
  2. Hopkins
  3. Wiring Harness
  4. Plugs into Vehicle Wiring
  5. 4 Flat
  6. Custom Fit
THIS ITEM IS NOT A FIT FOR
1987 Chevrolet Sprint
Hopkins

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Part Number: HM56115
In Stock
$85.00
Flat Tow Wiring Harness
Not Confirmed to Fit

1987 Chevrolet Sprint

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Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical feedback. 1-800-940-8924 to order Hopkins flat tow wiring harness part number HM56115 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 (4)
  • Q & A (0)
  • Videos (2)
  • Photos

Hopkins Flat Tow Wiring Harness - HM56115

  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical feedback.


Features:

  • Allows your RV's tail, brake, and turn signals to display on your car's tail lights
  • Plugs right into car's connection points - no cutting or splicing
    • Custom designed for your vehicle
    • No effect on your warranty
  • Prevents feedback that can damage your vehicle's electrical components with diodes
  • Provides 4-way flat plug at front of towed car
    • Requires additional harness to connect to motorhome - sold separately
  • Includes wiring harness, mounting bracket, and installation hardware
  • 90-Day warranty


Notes:

  • A brake light relay (RM-88400 - sold separately) may be required if used with a flat tow brake system. (See below.)
  • A wiring converter (118158 - sold separately) and 2 additional diodes will be needed to retain separate turn and brake signals. (See below.)

Combined Lighting System vs Separate Lighting System

Combined vs Seperate Lighting System

A combined lighting system, or 2-wire system, uses the same light bulb to signal both braking and turning. (In other words, the car signals a turn by flashing the brake light.)


A separate lighting system, or 3-wire system, has the brake signal and the turn signal light up independently of each other. Typically, the turn signal is amber.


To keep the separate lighting system on your car functioning properly while you're flat towing, add a wiring converter (118158 - sold separately) and 2 additional diodes.


Do I Need a Brake Light Relay?

If the engine is off and your car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override the turn signal sent by the RV when you are slowing down to make a turn, creating a potentially dangerous situation. Other drivers will see that you're slowing down, but not that you're making a turn. With a brake light relay, you can signal both and travel safely.




56115 Hopkins Plug-In Toad Taillight Towing Harness

Installation Details HM56115 Installation instructions

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:

Ratings & Reviews

5.0

4 reviews
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical feedback.

by:
2018 Chevrolet Tahoe

this is a MUST HAVE
This is truely plug
and play. no wires to splice, unplug from the light and plug into wiring kit and plug wiring kit into light, 2 connections one each side, then if you but the proper 6 pin with the 4 way on it already as i did, you plug onto that and your done... i wish they had made this for my truck save an hour of labor, but more import you never cut any of your factory wires... this is a slick kit.... and the cost is cheaper and a true time save.. LOVE IT



by:
2016 Chevrolet Tahoe

Fast and E-Z installation on both produ cts.



by:

Wow made the job easy and have not had any issues in 12 months of use.



by:


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

  • 2015 Chevy Suburban Flat Tow Parts Recommendations
    Hey Ricardo, thanks for reaching out! Picking out the parts for flat towing can be a bit overwhelming, but I'd be happy to help out! Here are the parts I recommend installing on your 2015 Chevy Suburban: - Blue Ox Base Plate Kit # BX1718 (with Adaptive Cruise Control) or Kit # BX1716 (without Adaptive Cruise Control) - Roadmaster Nighthawk All-Terrain Tow Bar for Blue Ox Base Plate # RM-677 - Hopkins Custom Tail Light Wiring Kit # HM56115 - 6-Way Connector # PK12720 - Roadmaster...
    view full answer...
  • Which Flat Tow Wiring Kit for 2013 FIAT 500 POP
    Although there isn't a plug and play option for your 2013 Fiat 500, we do have some wiring options that aren't difficult to install. The most popular option is the # RM-15267 diode kit from Roadmaster. I've linked to an install video that you might find helpful. In addition, you'll need base plates, a tow bar, safety cables, a supplemental braking system and possibly a high/low adapter. One of the provided links shows what we recommend for the Fiat 500. The Hopkins # HM56115 is for...
    view full answer...
  • Flat Tow Wiring Kit For 2022 Chevy Tahoe Premier
    There is a flat tow wiring kit for your 2022 Chevy Tahoe Premier (which is what I think you meant as there isn't a Premium), but the Hopkins # HM56115 does not fit the Premier models. Your '22 Tahoe has variable voltage taillights, which means multiple electrical signals are on a single wire, so it needs a specific wiring kit: - Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage Incandescent Tail Lights # RO94FR The # RO94FR moderates the voltage correctly so that...
    view full answer...

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


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Lindsey S
Edited by:
Lindsey S
Employee Kathleen M
Installed by:
Kathleen M
Employee Bradley B
Installed by:
Bradley B
Employee Dustin K
Video by:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Amanda K
Updated by:
Amanda K
Employee Alexander C
Written by:
Alexander C

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