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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
1989 GMC Van
Hopkins

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

$74.94
Retail:$102.09
You Save: 27%
Flat Tow Wiring Harness
Not Confirmed to Fit

1989 GMC Van

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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 HM56202 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 (158)
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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.




11156202 Hopkins Plug-In Toad Taillight Towing Harness

Replaces 56201 and 56202

Item # HM56202

Installation Details HM56202 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.6

158 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:

True plug and play on vehicle end. Easy to connect to front end connector for your tow system.



by:

This wiring kit that was sent to me is completely the wrong one for my jeep. I even took it to an RV guy who hooks jeeps to RV s and he agreed that the product was incorrect. I did explain this to your company shortly after receiving it, and I was told it was correct. However it is still sitting in the box in my garage. I did contact a different company that specializes in Jeep parts and was giving the info for the correct wiring kit. Thanks



by:

This wiring kit was easy to install on my vehicle.



by:
2005 Jeep TJ

Terrible product. After hours of trying to figure out why my passenger side would not work, the diode switch was bad. Nothing like running wire and taking wheel liners out to find that out.



by:
2004 Jeep Wrangler

This was a breeze to install!! About 30 min and I had working lights on my Jeep and was ready to hook it up behind my motorhome. Price was great too. Stopped at my local RV dealer and he said he could get me a wiring kit for $250! Saw this one online for $50 bucks and took a chance. Sure glad I did! Disconnect a couple of plugs, plug in new harness, route the wires to the front and BOOM! Ready for the trip! Thanks guys!



by:
2001 Jeep Wrangler

Easy to install ! About an hour! Used some split flexible wire protection ( not included with purchase) Would recommend a 5ft 4 pole flat trailer connector extension when using a tow bar!



by:
2006 Jeep Wrangler

Pretty easy install on my 06 Jeep Wrangler. Watch the videos and it will all make sense for install. Had plenty of wire to reach. A stiff wire for fishing the wires across my fuel tank made the job easy.



by:
Jeep

Item works like a charm on my Jeep Wrangler….plug and play!



by:

Super easy install! Just took a little while and was very messy so wear latex gloves.



by:

Great system! Plug and play, works as it should.
Works well!



by:
Jeep

Kit hooked up just as described and works perfectly. I highly recommend this kit for all jeep owners.



by:

Installed on an 02 Jeep Wrangler. Installation was as easy as following instructions. Works great. Highly recommended.
Alex at etrailer you are the best.



by:

Easy install, works great. Simple route to operate taillights on the toad without draining it’s battery since power comes from the RV.



by:
1999 Jeep Wrangler

Wasn't working called etrailer and they helped solve the issue it's working great. Thanks Etrailer.



by:

Very good and easy to install



by:
2000 Jeep Wrangler

I was looking for a wiring harness to tow my 2000 Jeep Wrangler. I watched a YouTube vidio sponsored by you guys. The video recommended the Hopkins wiring harness. I ordered it, it came with in 3 days as promised and was extremely simple to install!!! Love a company that that delivers what it advertises!!! Thanks again!!!

Don Pommerville
Pommerville Automotive

Don P. profile picture

Don P.

7/3/2023

I have made many trips towing my jeep and everything is still working perfectly!!!



by:
2005 Jeep TJ

The parts I purchased to ei my jeep for towing were easy to install got the tow bar adapter but somewhat difficult or the wiring harness. Passenger side rear lights on my 2005 Tj were behind the charcoal filers in the rear fender and required a lot of work to access.



by:

Easy plug and play. I cut the 4pin connector off and wired a 6 pin socket with battery caharge line to be compatible with my tow vehicle and other TOADS

Jack profile picture

Jack

2/16/2023

BULLET PROOF



by:
Jeep

Quality product, purchased a year ago. Installed in my Jeep in roughly 30 min give or take. The directions were easy to read and understand. I highly recommended this product to anyone wanting to wire in taillight for flat tow. You can’t beat the price for a good quality kit like this, a year later and still works flawlessly. This is a true plug and play product. Why pay a shop top $$$ when you can install a hopkins kit in an afternoon. Good job hopkins



by:
2001 Jeep Wrangler

This wiring harness was exactly what I was looking for so that I could tow my jeep behind my RV. No cutting, just plug and play (er I mean tow). There was plenty of extra wiring at the front end so that I could route through the engine bay and mount under the front bumper so it was out of site but easily accessible. Worked perfectly!



by:

Everything worked out fine



by:
2004 Jeep Wrangler

Good product. Install directions should include which plug in at each taillight should be used if you already have trailer hitch plug in wiring installed. Had to go to Youtube and find a video that talked about the correct colored wire you should connect to. Other than that, install went well.



by:

We installed the wiring harness and never could get it to work so now we use magnetic lights. It was labor intense too install and a little gun shy to re-order the same product. I am a mechanic and was very disappointed in the light unit.
Thanks, kinda nice to vent!



by:

I just finished installing this harness on my 2003 Wrangler. As any wiring on a Jeep, it was uncomfortable and tight to access the wiring. This is normal. The installation sheet instructions were inaccurate for my model, I have a career in automotive, so it was no problem for me. I installed this for flat towing of my Jeep. I ran the harness over the fuel tank and down the drivers side undercarriage, that is where the main harness and brake lines run.



by:
1999 Jeep TJ

After one year on the vehicle and also installing new LED lights, the wiring kit is still working. I love not having to add extra lights for towing.


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Show More Reviews

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

  • Does Curt T-Connector Vehicle Wiring Harness For Jeep Wrangler Have Diodes
    The Curt # C55363 is a trailer wiring harness. There are no built-in diodes since this is designed to power the signal lights when towing a trailer. Since you are installing/using the InvisiBrake # RM-8700 I'm assuming you're looking for tow bar wiring like the # HM56202 which does have integrated diodes. I'm not sure which vehicle you have, I'm guessing a Wrangler based on the wiring harness you asked about. This wiring fits a 1998-2006 Jeep Wrangler.
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  • Base Plate Kit Recommendation for a 1998 Jeep Wrangler Sport Automatic and a Remco Tow Bar
    Based on my research, your Remco tow bar should be compatible with all Blue Ox base plates, so for your 1998 Jeep Wrangler Sport, I would recommend the Blue Ox Base Plate Kit, # BX1118. I would also recommend verifying that your tow bar is compatible with Blue Ox base plates. This base plate kit is compatible with the U-channel or double tube bumper. Before you install a base plate kit, I recommend checking your vehicle owners manual for flat tow compatibility. There may be certain restrictions...
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  • Does the Curt Custom Base Plate Kit Require Drilling to Install on a 2004 Jeep Wrangler?
    Hey Tim. The Curt Custom Base Plate Kit item # C32KR does not require drilling. It installs in existing holes on your 2004 Jeep Wrangler. Here are the rest of the parts you'll need to flat tow your Jeep: Tow Bar and Safety Chains - etrailer SD Non-Binding Tow Bar for Blue Ox and Curt Base Plates item # e47ZR Wiring Harness - Hopkins Custom Tail Light Wiring Kit for Towed Vehicles item # HM56202 Supplemental Braking System - Brake Buddy Select 3 Portable Supplemental Braking System item...
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  • Does the Demco Tabless Base Plate Kit DM9519045 Use All New Hardware on a 2024 Jeep Wrangler?
    You're welcome Tim. The Demco Tabless Base Plate Kit item # DM9519045 utilizes all new hardware when installed on a 2024 Jeep Wrangler. You won't have to reuse your old bolts. Please note that this baseplate kit will only work with the standard factory bumper. Here are the rest of the parts you'll need to flat tow your Jeep: Tow Bar and Safety Chains - etrailer SD Non-Binding Tow Bar - RV Mount - 2" Hitch - 6,000 lbs item # e34ZR Wiring Harness - Hopkins Custom Tail Light Wiring Kit...
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  • 2002 Jeep TJ Recommended Parts for Flat Towing Behind a Motorhome
    Hey Ben! I'm not seeing a previous question from you in our system that's tied to this email address but I'd be more than happy to help you out! For a base plate kit I recommend going with either the etrailer Invisible Kit # e98946 or the Demco Classic # DM9518112. These have the same connection dimensions and fit with the recommended etrailer SD Non-Binding Tow Bar # e34ZR, with the only real difference being that the etrailer version has removable tabs for a clean looking finish when...
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  • Best Parts to Flat Tow a Jeep Wrangler TJ with D-Ring Adapters
    Towing your Jeep Wrangler TJ behind your motorhome requires a tow bar, a kit to connect the tow bar to the Jeep, a lighting solution, and a braking system. You also may need a way to maintain the Jeep's battery while towing and a high-low adapter to keep the towing setup level. One of the best tow bars on the market is the Roadmaster Nighthawk All Terrain, part # RM-676. It's a non-binding tow bar that makes it easier to connect on unlevel ground. The arms are also self-aligning to...
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  • Recommended Parts for Flat Towing a 2001 Jeep Wrangler
    Thanks for reaching out again about the vehicle you're needing to flat tow, Zack! Here are the parts I recommend picking up to flat tow your 2001 Jeep Wrangler: - etrailer Base Plate Kit # e74FV - etrailer SD Non-Binding Tow Bar # e34ZR - Hopkins Custom Tail Light Wiring Kit # HM56202 - 7-Wire to 6-Wire Flexo-Coil Kit # RM-146-7 - Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes # DM26VR - High-Low Adapter (see attached article) I like the etrailer base plate kit...
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  • Can a Jeep Wrangler be Flat Towed by the Front Bumper
    I have a solution for you, however, I would not recommend mounting a tow bar directly to a bumper on a Jeep, whether it is OEM or an aftermarket bumper. Jeep does not recommend towing the Wrangler with the OEM bumper because it was not designed to pull the weight of the vehicle. Also, mounting a tow bar to a bumper would require drilling. I spoke with my contact at Pavement Ends and she said drilling into this bumper would void the warranty and they do not recommend using it to tow the...
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  • What Do I Need To Flat Tow A 2004 Jeep Wrangler Behind A Motor Home
    I am happy to help you find the parts to flat tow your 2004 Jeep Wrangler. The Roadmaster Direct-Connect Base Plate Kit part # RM-521424-5 is a better option for a base plate compared to the Roadmaster # RM-521424-4 that you referenced because the Roadmaster Direct-Connect Base Plate Kit doesn't require you to leave the crossbar of your tow bar on the base plate to use the quick disconnect like the slightly older version. The Direct-Connect is a bit easier to use. I attached a video that...
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  • How To Use etrailer SD Non-Binding Tow Bar On 2006 Jeep Wrangler
    In order to use the etrailer SD Non-Binding Tow Bar part # e34ZR on a 2006 Jeep Wrangler you will need the etrailer Invisible Base Plate Kit part # e98946 (Same as Demco) which is for models with a factory bumper like the one shown below. This will almost complete your setup but you will need a few more things which I have attached below. The Hopkins Custom Tail Light Wiring Kit for Towed Vehicles part # HM56202 is needed so you can control the lights. The Blue Ox Patriot Portable Braking...
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    Image 1 for
  • How to Flat-Tow a 1998-2006 Jeep Wrangler TJ
    In order to flat-tow a 1998-2006 Jeep Wrangler TJ with all four wheels on the ground you will need a base plate kit, tow bar, safety cables, flat-tow wiring harness, supplemental braking system, and possibly a high-low adapter. I have attached my recommendations for each of these items below. For a base plate kit there are a few options for you. If you have d-rings on your bumper that are rated for flat-towing than you can use the Adapter for Jeep D-Ring Bumper Mounts part # RM-035 if...
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  • Parts Needed To Flat Tow a 1999 Jeep Wrangler TJ Using Blue Ox Tow Bars
    Yes, the Curt Custom Base Plate Kit # C32KR will work with the factory standard bumper on your 1999 Jeep Wrangler TJ. These removable mounts are going to be compatible with Blue Ox tow bars like the Avail Non-Binding Tow Bar # BX7420. The Hopkins Custom Tail Light Wiring Kit # HM56202 will allow you to plug and play your TJ tail lights to work with your motorhome tail lights. This will come with a 4-way flat connector but I recommend using the Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit...
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  • Troubleshooting Lighting Issues When Flat Towing A 2017 Jeep Wrangler Unlimited
    When it comes to wiring the first thing to check for is any shorts or bends in the wiring. If your wiring harness for your lights uses a converter like the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56202 it could be malfunctioning and not correctly sending signals. I've attached a video for testing the converter box and our help guide on wiring troubleshooting. If this doesn't solve your issue please reply back with the wiring you're using to connect from the RV and...
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  • What Is The Easiest Set-Up To Flat Tow 2004 Jeep Wrangler Behind 2021 Dynamax Isata
    We have everything you need to easily set up your 2004 Jeep Wrangler for flat towing. You are looking at five primary components for a safe flat towing setup; a base plate kit, a tow bar, safety cables, tow bar wiring, and a supplemental braking system. - Base Plate, etrailer Invisible Base Plate Kit, # e98946 (with factory bumper.) - Tow Bar, etrailer SD Non-Binding Tow Bar - 6,000 lbs., # e34ZR (This includes the needed safety cables.) - Wiring Solution, Hopkins Custom Tail Light Wiring...
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  • Recommended Flat Towing Set Up for a 2005 Jeep Wrangler TJ
    I would be happy to help you. You will want to verify that your bumper is capable of being flat towed with first. If you have 1" D-Rings you will need the Item # RM-035-1. If your D-rings are 3/4" wide you will want item # RM-035. I have listed the rest of the parts you will need to flat tow your 2005 Jeep Wrangler TJ along with any installation videos we may have. Tow Bar and Safety Chains - Roadmaster Falcon 2 Tow Bar item # RM-520 and item # RM-643 Wiring Harness - Roadmaster Diode...
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  • Hopkins 56202 Not Working on 1998 Jeep TJ
    Thank you for your purchase from etrailer of the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56202. If the signals on your Jeep are not working when connected to your RV you'll want to check a couple things; we know it's on the Jeep side or the harness since your RV works when connected to your boat, so we can narrow it down. The first thing you will want to do is unplug the harness and take a look at the Jeep's connectors just to make sure none of the pins were somehow...
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  • Blue Ox Base Plate Tow Bar Compatibility and Parts Needed To Flat Tow 2005 Jeep Wrangler
    I have a few tow bar options for you, but I do not think the Blue Ox base plates will work with the tow bar you referenced. I spoke with my contact at Blue Ox and he was unable to confirm if the # BX1120 will work with the tow bar you referenced. I was able to find out that the Blue Ox base plates and tow bars use a 1/2 inch pin to secure the tow bar and base plate. Based on the differences in pin diameter, I do not believe that they will be compatible. The # BX1120 base plate is compatible...
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  • Installing 4-Way Trailer Connector on 2006 Jeep TJ that is Already Wired to be Flat Towed
    To install a 4-way trailer connetor on the back of your 2006 Jeep TJ you can use the Tekonsha Wiring Harness # 118409. This plugs into the existing wiring on your Jeep under the rear bumper on both sides.
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  • Troubleshooting Jeep Lights Not Working with Flat Tow Harness
    Since your Jeep lights work normally when it is not connected to your RV your harness # HM56202 is probably connected properly. I suggest you test the motorhome connector to confirm that the correct lighting signals are present there. You can use a circuit tester like # PTW2992 on the contacts while a helper activates the brake, turn and running lights on the coach. Please refer to the linked article on wiring to see which contacts handle which signals on the various types of RV connectors. If...
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  • Can Hopkins HM56202 be Wired into 6-Way Connector on Front of Towed Vehicle
    Absolutely! We actually recommend doing this exact install a lot of the time. Using a 6-way, like part # PK12720 for an example, at the vehicle's front allows you to install additional wiring for a braking system or charge line but doing it this way makes it an easier install because the Hopkins # HM56202 is the easiest to install harness for your 2004 Jeep.
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    Image 1 for
  • Recommended Flat Towing Equipment For A 2003 Jeep Wrangler
    The Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56202 is a confirmed fit for your 2003 Jeep Wrangler, but in my honest opinion it's an inferior product to a splice in diode kit like the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 which will also come with the adapter cable and 6-way socket. With the Hopkins wiring harness you'll still be doing basically the same amount of labor minus splicing the wires and diodes together and there's a much larger...
    view full answer...
  • Wiring for Flat Towing 2006 Jeep Wrangler
    I assume you would like to flat tow your 2006 Jeep Wrangler and have 4-Pole Flat Trailer Connector # 32625. If this is the case you can use Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56202; the Hopkins kit for towed vehicles plugs into your Jeep's tail light housing assemblies while the connector plugs in behind the rear tire mud flap on the driver's side.
    view full answer...
  • Why Will the Hopkins Tail Light Wiring Kit HM56202 Not Work on a 1997 Jeep Wrangler TJ
    The Hopkins Custom Tail Light Wiring Kit for Towed Vehicles part # HM56202 will not work on your 1997 Jeep Wrangler TJ because Jeep changed the pinouts on the tail lights between the 1997 and 1998 model years. Therefore, it will plug into the connectors behind the tail light housing but will not function properly. There is not another plug and play flat-tow wiring harness for your Jeep so I recommend using the Roadmaster Tail Light Wiring Kit with Bulbs part # RM-155 as it will not require...
    view full answer...
  • Installation of Hopkins Custom Tail Light Wiring Kit for Towed Vehicles HM56202
    Hopkins harness # HM56202 for towed vehicles like your 2006 Jeep Wrangler Rubicon installs at the tail light assemblies using the included custom-fit connectors. The connectors/wiring with a yellow wire attach at the driver's side light. The connectors/wiring with the green wire install at the passenger side tail light assembly. The only other wire to be connected is the white ground wire with ring terminal. This connects using the include self-tapping screw to a clean bare metal surface...
    view full answer...


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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 Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeff D
Installed by:
Jeff D
Employee Bradley B
Installed by:
Bradley B
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Noah M
Updated by:
Noah M
Employee Amanda K
Updated by:
Amanda K
Employee Shane H
Test Fit:
Shane H
Employee Jonathan Y
Video by:
Jonathan Y

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