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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
2012 Ford Taurus
Hopkins

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

$72.08
Retail:$102.09
You Save: 29%
Flat Tow Wiring Harness
Not Confirmed to Fit

2012 Ford Taurus

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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 HM56204 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.
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  • Reviews (37)
  • Q & A (0)
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Hopkins Flat Tow Wiring Harness

  • 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.




11156204 Hopkins Plug-In Toad Taillight Towing Harness

Replaces Tow Daddy 3008 and Hopkins 56204

Item # HM56204

Installation Details HM56204 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

37 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:
Jeep

Ease of installing wire connector to existing Jeep wireing.



by:

Great product and easy to install. Would recommend this wiring kit.

Bobby profile picture

Bobby

12/28/2024

Product was working great when I sold the vehicle. This wiring harness was easy install, and I would highly recommend it. I would defiantly purchase again. E-Trailer has always been good to work with.



by:

Plug and play great help !



by:
Jeep Liberty

I recently purchased a Blue Ox tow bar, towed vehicle brake system and three wiring harnesses for towing my Jeep Liberty with our motorhome. etrailer.com was my first choice for the purchase for these items worth almost two thousand dollars. Even though these prices were set by the manufacturer, I knew I could trust these folks. Their salesmen, (in this case Wayne H.), are more than just order-takers. They know what they are selling and are a good source of information on a variety of related products. When Wayne wasn't available for follow-up discussions, the operator took my cell number. Surprisingly, Wayne got back with me right away and supplied me with his direct line in case I had any questions. I've had experience with others dealers who don't get back for hours if at all. Bottom line: etrailer.com will continue to be my first choice for RV and other related items.



by:
2011 Jeep Liberty

The Hopkins kit worked perfectly, no surprises or modifications needed. Made electrical hook up to my motorhome seamless, 2003 National RV Seabreeze and 2011 Jeep Liberty. I highly recommend this wiring kit for the Jeep Liberty.



by:
2012 Jeep Liberty

The kit was a Hopkins kit. These are all generally well make with good instructions. What makes the difference is where you purchase it from. Etrailer and Nicky K is who gets the five stars. These folks could not be easier to deal with. They stay in touch from the moment of the sale until after the sale and then even ask you how the install went. In todays online market I'm not sure how etrailer has put together the team and website that they have but they have done a great job of it. I now start to look at them as a complete store not just trailer stuff. If you want the right stuff, quality goods and, excellent service shop here. Thanks etrailer,



by:
2010 Jeep Liberty

everything as expected. thanks.



by:

Excellent product for the price. Installation was straight forward with no issues. Very satisfied!



by:

We were on the road for four months and 10,000 miles, everything good! Easy hook-up and no problems.



by:

The technical support was right on the money for this wiring kit. It works and performs exactly as described; another reason for my return to etrailer for accessories for my RV and other vehicles.

Ron J. profile picture

Ron J.

7/21/2023

Working great and was easy to install. I have also towed my sons cargo trailer and all lights worked fine. Many thanks to your customer service techs for steering me in the appropriate direction.



by:
2012 Jeep Liberty

order called in at 3:20 one day, and received order by 5:00 pm the next day . Wow that was fast. Keep up the good work. I will use you guys every time I need anything. as a matter of fact I am working on another order as of today. Thank you all. Jerry A in NE MO.



by:

Follow instructions and you will have no problem installing



by:

On time delivery, The instructions are in very small print, but they are very easy
to understand.



by:
2009 Jeep Liberty

Plug and play very easy



by:

Exactly what I needed. Very fast shipping!



by:

Showed up fast, all looked good!!



by:

Great Product

Frankie profile picture

Frankie

2/5/2018

Thank You for the follow up that means a lot about you company in how youcare, another reason why I like to deal with your company. GREATCUSTOMER SERVICE! ! ! ! Still love them all working GREAT!!!



by:
2012 Jeep Liberty

I purchased this harness for our 2012 Jeep Liberty so we could tow it behind our motorhome using the jeeps own tail lights for brake and turn signals. The harness works perfect and was a easy plug and play install with the exception of having to install one self-tapping screw for the ground (included). It also comes with a plastic bracket to in install the 4 flat connector on the front of the jeep which also works well! My only dislike is the wires of the harness are not incased in any form of wire loom to protect them from the elements or rubbing on other parts of the jeep which could easily damage the wires so I purchased some 3/8 and 1/2" wire loom and installed it my self but other than that it seems to be a great harness!



by:

Randy profile picture

Randy

4/2/2022

Pretty well, but the adhesive backing for, rectifier block, Ithink its called, didnt hold too well.



by:

Works great! Easy to install.



by:

Great.



by:

Very well made, so easy to install. Thank You



by:
2012 Jeep Liberty



by:

easy to install and looks great...



by:


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37
Show More Reviews

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

  • How to Flat Tow a Second Generation Jeep Liberty 2008-2011
    In order to flat-tow a second generation (2008-2011) Jeep Liberty with all four wheels on the ground you will need a base plate kit, tow bar, flat-tow wiring harness, safety cables, supplemental braking system, and possibly a high-low adapter. I have attached my recommendations for each of these parts below. For a base plate kit I recommend the Roadmaster Base Plate Kit part # 521434-1 if you have a have rock guard or skid plate excluding Renegade, part # 521433-1 if you do NOT have a...
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  • Recommended Flat Towing Parts for a 2012 Jeep Liberty
    You will need to purchase the parts separately there isn't one giant flat towing kit that can be purchased. There are just way too many options and combinations. We all tend to recommend different products so my choice in parts will be different but not necessarily better. The question you looked at is a few years old but they stopped making new parts for 2012 Liberty's awhile ago. To flat tow your 2012 Jeep Liberty you will need the following parts: Tow Bar and Safety Chains - etrailer...
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  • Parts Needed to Flat Tow a 2012 Jeep Liberty Behind a Motor Home
    Flat towing a vehicle requires specific equipment to tow the vehicle safely and in accordance with local, state, and federal laws. A front mount hitch is not suitable for use to flat tow a vehicle behind an RV but I can tell you all of the parts that you will need. There are at least 5 items you will need to flat tow your 2012 Jeep Liberty: base plates, tow bar, safety cables, lighting, and supplemental braking. But the first thing to check is the vehicle owners manual to make sure your...
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  • Preparing 2008 Jeep Liberty To Be Flat Towed Behind A Motorhome With Blue Ox Bars And Air Force One
    First you will need the Blue Ox Base Plate Kit # BX1976 to connect your 2008 Jeep Liberty to your motorhome. This will fit the Blue Ox Adventurer, Aladdin, Allure, Alpha, Avail, Aventa, and Trion tow bars. If you have a different model tow bar let me know and I will help find an adapter or replacement. The Hopkins Custom Tail Light Wiring Kit # HM56204 will plug directly into the taillights on your Liberty. This can connect directly to the motorhome via the 4-way connector that is on...
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  • Can a 2010 Jeep Liberty Renegade Be Flat-Towed
    The 2010 Jeep Liberty could have came in either a four wheel drive or two wheel drive configuration. The four wheel drive models can be flat towed with all four wheels down whereas the two wheel drive models cannot. If you have a Renegade then you have four wheel drive so it can be flat-towed. If you take a look at page 406 of your owner's manual, this is explained for you. In order to flat tow the vehicle you are going to need a tow bar, base plate kit, safety cables, tail light wiring...
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  • Flat Tow a 2009 Jeep Liberty, What is Needed
    Yes it is and we can help you put together a complete package to flat-tow your 2009 Jeep Liberty. Please note the link to help article that I have attached with information listed below. You will need: - Base plate kit - Tow bar - Flat-tow wiring harness - Safety cables - Supplemental braking system - *Possibly a high-low adapter. Please links for each item below: Base plate kit, I suggest the Roadmaster Base Plate Kit # 521434-1. This is a confirmed fit for your 2009 Jeep Liberty....
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  • Recommended Base Plates for 2012 Jeep Liberty to Use with Roadmaster Sterling Tow Bar
    If your 2012 Jeep Liberty doesn't have a rockguard or skid plate then I recommend the Roadmaster EZ Base Plate Kit # 521433-1. If you do have a rockguard or skid plate then you will want the Roadmaster EZ Base Plate Kit # 521434-1, which will actually replace the rockguard/skid plate. Both of these options are directly compatible with your existing Sterling Tow Bar. Your current Roadmaster InvisiBrake # RM-8700 will also work great with your Jeep Liberty. If you are using a lighting solution...
    view full answer...
  • Roadmaster Base Plates for a 2012 Jeep Liberty and BlackHawk Tow Bar
    Yes, you can use either # 521433-1 (if the Liberty does not have a rockguard or skid plate) or # 521434-1 (if it does have a rockguard or skidplate). Either set is compatible with your BlackHawk tow bar. You will also need safety cables like # RM-643. Next you will need a lighting solution. I recommend the plug and play Hopkins harness # HM56204 for the easiest installation. You will also need a supplemental braking system on the Jeep as required by law in most states. The easiest to...
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  • Are Roadmaster Base Plates Compatible with a Reese Tow Bar for a 2012 Jeep Liberty
    The Roadmaster base plates, # 521434-1, will work with a Reese tow bar as long as it is Reese model 74950 and you use adapter # RM-025 with quick disconnects # RM-201. If it is a different model tow bar then it will not work. based on my research I found that the compatible Reese tow bar is only rated for 5,000 pounds so it is not likely the base plates will be compatible. For a compatible tow bar you can use the Tracker # RM-020 and you will also need the quick disconnects # RM-201. You...
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  • Recommended Best Parts for Flat Towing a 2012 Jeep Liberty
    For your 2012 Jeep Liberty, I recommend starting with the Roadmaster EZ Base Plate Kit - Removable Arms # 521434-1 because the system is almost invisible when not in use. It will provide a solid connection to your vehicle for the Roadmaster Sterling All Terrain Tow Bar # RM-576. This tow bar will give you the safety cables and the wiring connection you need in a really nice integrated part. For your vehicle wiring I recommend the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles...
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  • How To Use Roadmaster Falcon Tow Bar On 2011 Jeep Liberty
    In order to use a Roadmaster Falcon Tow Bar on a 2011 Jeep Liberty (Without Rockguard or Skid Plate) you'll have to go with the Roadmaster EZ Base Plate Kit part # 521433-1 which requires the Quick Disconnect Crossbar Assembly part # 910021-00 if you don't already have it as that's the only option. In regards to a flat-tow wiring harness, it's hard to make a case against the Hopkins Custom Tail Light Wiring Kit part # HM56204 since it's both plug-in-play and cost effective. It also comes...
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  • Toad Vehicle Wiring Kit For A 2020 Ford Ranger
    The Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56204 will unfortunately not work for your 2020 Ford Ranger. However, the Roadmaster Diode 7-Wire to 4-Wire Flexo-Coil Wiring Kit # RM-15247 is confirmed to work with your vehicle. This kit includes 4 Hy-Power diodes; 30' long 4-wire harness; wire connectors; cable ties; 1 ring terminal; 3' long plastic loom, 8 ft coiled cord, vehicle mounting bracket, and a socket.
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  • Tow Bar Wiring Recommendation for a 2007 Jeep Liberty
    For your 2007 Jeep Liberty the tow bar wiring harness is the # HM56203, the # HM56204 is for the newer generation Liberty that starts in 2008. To determine if you would also need the brake light relay part # RM-88400 (price at link below) you will need to answer the following questions: Are you using a supplemental braking system that depresses the brake pedal in your towed car? No - You do not need a brake light relay. Yes - You may need a brake light relay. Continue on to the next...
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  • Can Tow Bar Wiring Harness be Bypassed on a 2012 Jeep Liberty
    Do you want to bypass the converter because the RV uses separate turn signals and brakes lights like the 2012 Jeep Liberty or for some other purpose? The converter box in a tow bar wiring harness such as # HM56204 takes the separate turn signals and brake lights used by the Jeep and combines them. It also offers circuit protection so bypassing it would not be a good idea. If you want the Jeep turn signals and brake lights to be separate you would need to use the 6 diode kit # 154-792-118158.
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  • Base Plate and Flat Tow Wiring Kits for a 2011 Jeep Liberty
    Hey John! The Blue Ox Base Plate Kit # BX1976 and Hopkins Custom Tail Light Wiring Kit # HM56204 are great starts to the parts needed for your 2011 Jeep Liberty. For wiring with a 4-Way round we have the Roadmaster 7-Wire to 4-Wire Flexo-Coil Kit # RM-164-7, but it looks like you'll need the Battery Disconnect Kit # RM-766 and potentially the Charge Line Kit # RM-156-25 (if your brake kit pulls power from your Jeep battery), so the Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit # RM-146-7...
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  • Parts Recommendations For Flat Towing 2012 Jeep Liberty Sport Behind A Motorhome
    You will want to check with your local DOT to make sure you can tow a vehicle with a scooter carrier and scooter attached to the rear of your 2012 Jeep Liberty Sport. I recommend the Blue Ox Base Plates, part # BX1131. This bolts to the chassis and requires no welding for installation. The tabs are easily removed for a more inconspicuous look, and includes all the necessary hardware for installation. I have attached an installation video for these base plates on a 2012 Liberty you can...
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  • Recommended Taillight Wiring Harness for Flat Towing 2012 Jeep Liberty Behind Motorhome
    The Hopkins # HM56204 is a plug-and-play wiring harness that contain diodes to prevent feedback into the tow vehicle's wiring system. The harness would use the taillights of your Liberty like a combined system. When the vehicle's being flat towed, the red taillights will act as the stop, turn and brake lamps. When the Liberty is unplugged from the RV and driven normally, the taillight system will operate as usual.
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  • Parts Needed to Flat Tow a 2012 Jeep Liberty Sport Latitude with Falcon 5250 Tow Bar
    The Roadmaster Falcon 5250 is compatible with the quick disconnects and all Roadmaster base plate kits. There are a few options for your 2012 Jeep Liberty depending on how it is equipped. If it does not have a rockguard or skid plate then use # 521433-1. If it does have a rockguard or skid plate use # 521434-1. I have included links to the instructions for the first set and a video install of the second set. In addition to the base plates and tow bar you will also need safety chains like...
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  • Recommended Parts To Flat-Tow a 2012 Jeep Liberty
    In regards to flat-towing components, there are a few different brands such as Roadmaster, Blue Ox, or Demco to choose from. If you prefer one over another then that is fine but I think each excel in certain areas so I recommend mixing and matching. The Roadmaster tow bars for example have a torque multiplier system that makes disengaging the arms much easier than other options such as Blue Ox. The Demco braking systems tend to be easier to install and perform better than other options...
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  • Can Tow Wiring Harness And 4-Way T-One Harness Both Be Installed At The Same Time
    You should have no problem installing both the Hopkins Custom Taillight Wiring Kit, part # HM56204, and the T-One Vehicle Wiring Harness, part # 118554 at the same time. It should make no difference which one is installed first, but you will want to make sure you have plenty of room behind the taillight for both harness connectors, and make sure you test the first installation with a circuit tester like part # PTW2993 before wiring the second harness. This way you will know all of the...
    view full answer...
  • Recommended Custom Tail Light Wiring Kit for Flat Towing 2011 Jeep Liberty
    The Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56204 is a confirmed fit for your 2011 Jeep Liberty. It has integrated diodes to prevent feedback for safe operation and plugs right in to your victory wiring and the tail lights of your vehicle. Your vehicle does not require a battery disconnect kit.
    view full answer...
  • How To Use Roadmaster Tow Bar On 2010 Jeep Liberty
    In order to use a Roadmaster Tow Bar On a 2010 Jeep Liberty like the Falcon 2 Tow Bar part # RM-520 you'll need the Roadmaster EZ Base Plate Kit part # 521433-1. In regards to the wiring, I recommend the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles part # HM56204.
    view full answer...

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