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  1. Flat Tow Wiring Harness
  2. Ram
  3. 1500
  4. 2020
  5. Roadmaster
FITS 2020 Ram 1500
Roadmaster Standard Magnetic Tow Lights

Roadmaster Standard Magnetic Tow Lights

Item # RM-2120
Retail:$84.99
Our Price: $76.40
You Save: 10%
Flat Tow Wiring Harness
Confirmed to Fit
2020 Ram 1500

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Call etrailer.com at 1-800-940-8924 for expert service. We are your Ram flat tow wiring harness experts, and offer a great price. etrailer.com carries a complete line of Roadmaster products for your Ram 1500 2020. Roadmaster Standard Magnetic Tow Lights part RM-2120 from Roadmaster can be ordered online at etrailer.com. Complete flat tow wiring harness installation instructions and technical support.
  • All Info
  • Reviews (35)
  • Q & A (0)
  • Photos

2020 Ram 1500 - Roadmaster Standard Magnetic Tow Lights

  • Bypasses Vehicle Wiring
  • Removable Tail Light Kit
  • Roadmaster
  • Magnetic Mount
  • Universal

Avoid tapping into your towed Infiniti I30's electrical system by using these self-contained tow lights. Heavy-duty magnets keep lights securely in place on your towed car.


Features:

  • Allows you to legally tow your car without having to tap into its wiring
  • Eliminates risk of electrical damage to towed car
  • Attaches securely with magnets
  • Connects directly to motor home wiring, bypassing towed Ram 1500 completely
  • Has heavy-duty vinyl casing for superior protection of wiring
  • Meets Department of Transportation standards
  • Fits all Ram 1500s
  • Includes 2 lights and wiring harness with 4-pole flat trailer connector
  • Length of wire:
    • Wire that connects the lights: 53-1/2"
    • Wire that extends out the back of the light: 243"
    • Wire with 4-pole connector: 35-1/2"
  • Limited Lifetime Warranty


The law requires that all towed cars have functional signal and brake lights in sync with the RV towing them. Most wiring kits require you to splice into your Ram 1500's electrical system, but doing this can void your manufacturer's warranty. Magnetic tow lights avoid this problem by having the wiring run underneath your car and plug into your power source.



2120 RoadMaster Standard Magnetic Tow Lights

Installation Details RM-2120 Installation instructions

Customer Satisfaction Score:


Customer Reviews

Roadmaster Standard Magnetic Tow Lights - RM-2120

Average Customer Rating:  4.8 out of 5 stars   (35 Customer Reviews)

Avoid tapping into your towed vehicle's electrical system by using these self-contained tow lights. Heavy-duty magnets keep lights securely in place on your towed car.

by:

These lights have worked flawlessly for the whole 2023 camping season on my RV towed vehicle. I mount them on the rear of the roof so they are nice and high above bicycles on a hitch mounted rack.



by:

Extremely happy with the tow bar wiring. Not one problem for the year!



by:
Jeep

They were shipped fast and arrived quickly. These are quality lights with very strong magnets. I installed them on my Jeep in no time after making some steel brackets for the tubular aluminum bumper. Would be nice to have 5 or 6 magnetic clips to place along the wire to secure it to the vehicle. I highly recommend these lights.



by:
1998 Honda CR-V

Timely receipt. have not installed yet. but the instructions seem simple enough.



by:
2005 Subaru Forester

I like these lights, nice strong magets hold them securely to car roof. I use them because my bikes in bags cover my tail lights. I added LED bulbs because when I tow the car with my RV these additional lights put to much load causing voltage drop and dim lights.

Jay C.

8/3/2018

These lights are still working well only improvement I could suggest is if they could somehow maybe put up plastic layer between the magnets and the roof because they’re taking paint off, if they could still make the magnet is strong.



by:
Jeep Wrangler

I purchased the Curt Tow Bar with Adjustable-Width Arms - Car Mount - 2" Ball - 5,000 lbs. initially I was Leary of the product because of its low price compared to other tow bars. I now can say my concerns were needless because after flat towing my Wrangler over 5,000 trouble-free miles I have nothing negative but only positives to report. The best thing I like about the tow At is that it only takes 5 minutes to attach and unhook.



by:
2015 Mercedes-Benz Sprinter

works great, easy application



by:

Good light set. Works perfectly and has held up well.



by:
2010 Chevrolet Silverado

Everything was delivered on time and worked perfectly. This solved my concerns about towing my car with my RV with a car dolly.



by:

Fast delivery. Did a test as soon as I received the light kit. Flawless. Magnets very strong but safe for car finish.



by:

Heavy duty magnets gave me the security of knowing they wouldn’t come off. Very easy to install!



by:

I did a mock-up set-up and this kit works as advertised.
Magnetic bases are strong, it should fit my needs perfectly.



by:

lights look fine....

easy hitch
is far better than I expected....very nice. I should have gotten this sooner!!!



by:

Very simple product. Exactly what I wanted. I need to do something more permanent but this worked for our trip. The most important thing was I needed it fast and I got it in time.
Friendly and informative people on the phone were knowledgeable and new their product. I will shop here again.



by:

Works as intended. No issues.



by:

Thanks



by:

These are the products that we needed and you were able to provide them.



by:
2011 Mazda MX-5 Miata

Very strong magnets and plenty of length on the cord for a car in tow.



by:

I looked everywhere for these lights. Lots of cheep ones out there for 2-2X $$ but these are the real deal and a great price. Shipment was early and response was great. Thank you for the quality product.



by:

Works great!!



by:
2010 Mini Cooper

Everything delivered even faster than expected - Thank you.



by:

NO PROBLEMS AT ALL. THE LIGHTS ARE THE QUALITY I THOUGHT THEY WOULD BE AND THE SERVICE WAS GREAT.



by:

Have not hooked up yet. But ordering and delivery are great



by:
2018 Jayco Greyhawk Motorhome

Just what I wanted



by:


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Show More Reviews

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

  • Combined 7-Way and 4-Way Flat Connector for Motorhome
    There is a way for you to replace the 7-way on your motorhome with a combined 4-way and 7-way so you can plug in the Roadmaster Magnetic Tow Lights # RM-2120 to the 7-way and your Kar Kaddy to the 4-way, though you will not be able to use the parts you were referring to because you do not have the wiring harness connector (also called a U.S. car connector). Instead what you can do is use the Adapter 4-Pole to 7-Pole # 37185 and cut off the 4-way connector. All you have to do at that point...
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  • Can a 2010 Kia Soul with Manual Transmission be Towed Behind a Motor Home
    I did some research on your 2010 Kia Soul with the manual transmission and found that it can be flat towed. Models with automatic transmissions cannot be flat towed and must be towed with a tow dolly like part # RM-2050-1. I recommend checking the towing section of your owners manual for any other procedures or limitations that Kia may have to flat tow your vehicle. The Blue Ox Patriot 3 # BLU37TR along with the # RM-9332, the Demco Base Plate Kit, # DM9518246, and the Commander Tow...
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  • Keyed Alike Locks for Roadmaster Base Plates and Tow Bar on a 2010 Ford Flex
    The pins that hold the draw bar arms on for base plate set # 4421-1 have a 5/8 inch diameter. You could use 3 of lock # e98882 keyed alike. Just select the the keyed alike option and enter 3 in the quantity box. In addition to the base plates, safety cables, and tow bar, you will also need a lighting system and supplemental braking. I recommend a magnetic kit such as # C-ATL20A because you will not need to use a brake light relay with a supplemental braking system if you use this kit. Check...
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  • Flat Towing Accessories for 2008 Saturn Outlook
    In order to flat tow your Outlook, you would need base plates, a tow bar, safety cables, wiring and in most states, a supplemental braking system. I would recommend the Blue Ox # BX3330 base plate kit, which would work very well with the Blue Ox Alpha tow bar, part # BX7380. Safety cables are included.. There are many different methods of wiring the dinghy so that its lights work in tandem with those of the motorhome, ranging from a magnetic mount system like part # RM-2120 to a custom...
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  • Parts Needed to Flat Tow a 2015 Mazda CX-5
    According to the online manual for your 2015 Mazda CX-5 (page 7-20) if you have the 2WD model then you can tow it using a dolly but if you have an AWD you will need to tow it with all 4 wheels off of the ground. I recommend checking your own copy of the owner's manual to confirm this. We have tow dollies from Roadmaster that you can use to tow a 2WD model. The # RM-2050-1, is your standard tow dolly and it utilizes electric brakes. The Roadmaster # RM-2050-1 doesn't come with a trailer...
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  • Parts Needed to Flat Tow a 2017 Lincoln MKX EcoBoost with Adaptive Cruise Control
    The Blue Ox base plate kit that you will need to use is part # BX2673 for your 2017 Lincoln MKX EcoBoost with Adaptive Cruise Control. If you don't already have a tow bar and safety cables then I highly recommend the Blue Ox Alpha Tow Bar # BX7380which comes with safety cables rated for 6,500 lbs. For a supplemental braking system the Air Force One # SM99243 is the best for you since your 2013 Tiffin Phaeton has air brakes. You will also need to use the Relay # RM-88400 unless you plan...
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  • Parts Needed to Flat Tow a 2017 Chevy Sonic
    I looked up the owner's manual for a 2017 Chevrolet Sonic and I saw that you can dinghy (or flat) tow a Sonic with an automatic transmission unless it is the RS model. On page 279 of the owner's manual it only specifies that the DLIS fuse from the instrument panel fuse block needs to be pulled. If that is the case then all you need to do is install the Roadmaster FuseMaster Fuse Bypass # RM76511 (see attached video) to make uninstalling the fuse much easier. However, if the dealer is saying...
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  • Parts Needed to Tow a 2016 Fiat 500 Pop Behind a Motor Home
    To flat tow your 2016 Fiat 500 Pop behind your motor home you will need base plates, a tow bar, safety cables, lighting, and supplemental braking. I will be happy to make recommendations for you. Starting with the base plates for the vehicle you can use # 522013-1A. the base plates provide the proper attachment point on the vehicle for a tow bar. For a tow bar the most popular compatible option is the Falcon 2, # RM-520. I linked a video review of the tow bar for you. For safety cables...
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  • Recommended Tow Bar Lighting For 1984 Jeep CJ-7
    If you are not planning on towing your Jeep really often I recommend using magnetic lighting like the RoadMaster Standard Magnetic Tow Lights part # RM-2120. Using the magnetic lights may be a better option because you would not have to work with the older wiring on your CJ-7. I called my contact at Blue Ox and they told me that you can use the Blue Ox Tail Light Wiring Kit, part # BX8811, although we do not have any information about this kit and installation on a your Jeep. When you...
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  • Modifications Necessary for Flat Towing 2003 Buick Rendezvous Behind RV
    According to my research, the 2003 Buick Rendezvous cannot be flat towed unless a transmission lube pump has been installed. This would hold true for either the FWD or the AWD model. We don't carry transmission lube pumps, but you should be able to find one easily by doing a Google search. The # RM-020 Roadmaster Tracker tow bar you referenced would work, as its 5000 lb capacity is sufficient to tow your Rendezvous. For a base plate, I'd recommend the Roadmaster # 3107-1. This base plate...
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  • Parts Needed to Flat Tow a 1999 GMC Sierra 1500 4x4 Behind a Motor Home
    The Demco base plates # DM9518077 will fit your 1999 GMC Sierra 1500 4x4. You will also need a compatible tow bar, safety cables, lighting, and supplemental braking to flat tow your truck. For a compatible tow bar I recommend the Commander, # DM9511012. This tow bar is rated for 6,000 pounds and includes safety cables. For lighting you could use a magnetic kit such as # RM-2120. Or for a more permanent solution you could use diode kit # 154-792-118158 that splices into the vehicle wiring. And...
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  • Parts Needed to Flat Tow a 2015 Ford Edge Titanium with 3.5 Liter Motor Behind a Motor Home
    According to the 2015 Ford Edge owner's manual you can flat tow the 2015 Edge Titanium if it has the 2.7 liter EcoBoost or 3.5 liter motor and 6-speed automatic transmission. Since you have a 3.5 liter then as long as you have the 6-speed automatic you can flat tow your Edge using base plates # RM-524448-4 if you have Active Cruise Control. If you don't have Actice Cruise Control instead you want # RM-524454-4 instead. And for a compatible tow bar with either kit I recommend the Roadmaster...
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  • Parts Needed to Flat Tow a 2013 Chevy Captiva Sport Behind a Motor Home
    I found an online copy of the owners manual for the 2013 Chevy Captiva and in section 10-70 it does indicate that you can flat tow the vehicle (front wheel drive and all wheel drive). Consult your owners manual for additional flat towing information. You will need base plates, tow bar, safety cables, lighting, and supplemental braking to flat tow a vehicle. For base plates you can use Demco base plates # DM9518218 that you referenced. For a compatible tow bar I reocmmend the Commander,...
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  • Towing a non-SS 2010 Chevy HHR Behind a Motor Home
    No, the Chevy HHR and HHR SS are fundamentally different were the base plates install so you would not be able to use the SS base plates, # 523159-1, on a non-SS model. I have verified this with my contact at Roadmaster. For a non-SS model you would use base plates # 3141-1. For a compatible tow bar I recommend the Falcon 2, # RM-520, and safety cables # RM-643. For lighting you can use a magnetic lighting kit # RM-2120. Or for a more permanent solution you can use diode kit # RM-154....
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  • Install Video for Roadmaster # 521181-5 Base Plate on 2013 Toyota Yaris
    We have indeed installed the Roadmaster # 521181-5 base plates on a 2013 Toyota Yaris. I've linked you to the install video. In addition to the base plates, you'll also need a tow bar, safety cables, a wiring solution and a supplemental braking system. For a Tow bar, I'd recommend the Roadmaster Falcon 2, part # RM520. The Falcon 2 features automatic-locking arms that make hooking up to the RV easy, you don't need to have the car lined up perfectly, simply connect it and the arms will...
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  • Base Plate Kit, Tow Bar, Safety Cables, and Light Kit Recommendations for a 1995 Jeep Cherokee
    We have two base plate kits available for your 1995 Jeep Cherokee. Both base plate kits are only for models that do not have a brushguard. First is the Roadmaster Standard Base Plate Kit, # 1402-1. But if it were my Jeep, I would go with the Roadmaster XL Base Plate Kit, # 1418-1. The XL series brackets attach to the towed vehicle frame and provide attachment points for tow bars. The visible portions of bracket can be removed when not towing. Please note that trimming of spoiler, air...
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  • Recommendation For Wiring Kit When Flat Towing a 2003 Honda Element
    For a light wiring kit when flat towing your 2003 Honda Element, I would recommend two different choices. If you do not plan on towing the vehicle often, you can use a light kit like the Roadmaster Standard Magnetic Tow Lights Item # RM-2120. If you do plan on towing it often, I recommend installing diodes using Roadmaster Universal Hy-Power Diode Wiring Kit, part # RM-154. With this diode kit the vehicle brake lights will function as both brake and turn lights. It will also have the diodes...
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  • Recommend Wiring Kit to Flat-Tow 2007 Jeep Wrangler Unlimited
    For lighting, there are a few options, you could use the Magnetic Towing Light Kit, part # RM-2120, which would be good if you do not tow often. These lights attach to your vehicle by magnets. If you plan to tow your Jeep often, I would recommend the item you selected, Roadmaster Universal Hy-Power Diode Wiring Kit, part # RM-154, which is a more permanent solution. From the information I found, your Jeep should have a combined tail and turn signal (see FAQ install). I have linked a video...
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  • Parts Needed to Flat Tow a 1998 Toyota RAV4 Behind a Class A Motor Home
    To flat tow a vehicle you will need base plates on the vehicle, a tow bar that goes between the RV and vehicle, safety cables (in case the vehicle becomes disconnected from the RV), lighting, and supplemental braking. The RV will need to have a trailer hitch and it and the RV will need to be rated high enough for the gross weight of the vehicle. A Class A motor home probably will not have any trouble in that regard. First for base plates you will need # 1142-3 for your 1998 Toyota RAV4....
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  • Will Towing 1992 Jeep Cherokee 4x4 on Car Dolly Require Drive Line Disconnect
    I spoke with my contact at Roadmaster and he said in order to avoid damage to the transmission you must disconnect the drive shaft or install a lube pump on you 1992 Jeep Grand Cherokee 4x4 when towing with the RoadMaster Tow Dolly with Electric Brakes, part # RM-2050-1. You can also flat tow your Jeep Cherokee. If you would like to go with this option you will need Roadmaster XL Base Plate Kit # 1418-1. I attached installation instructions for this product for you to check out. When...
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  • Parts Needed to Flat Tow a 2010 Hummer H3 Behind a Motor Home with Aventa Tow Bar
    I checked with Blue Ox and you can use base plates # BX4104 for your 2010 Hummer H3. It will be compatible with your Aventa tow bar. If you do not already have safety cables you can use # BX88197. For lighting you can use a simple magnetic kit such as # RM-2120. Or for a more permanent solution you can use diode kit # RM-154. And finally, most states now require supplemental braking on the vehicle being flat towed. One of the preferred systems for our installers is the SMI Stay-IN-Play...
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  • Which Blue Ox Base Plate kit Fits 2013 Cadillac SRX with Adaptive Cruise Control
    The Blue Ox Base plate kit part # BX1690 that you referenced does fit both the models of the 2013 Cadillac SRX that have the adaptive cruise control or without it so it would work well for you. For a compatible tow bar and safety cables, one of the most popular options is the Avail, # BX7420. This tow bar has a 10,000 pound capacity which would be more than enough for your SRX. For lighting, there are several options. However, I know that the SRX does have LED tail lights and the wiring...
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  • Parts Needed to Flat Tow a 2005 Suzuki Grand Vitara Behind a Motor Home
    The base plates that are specifically designed to fit your 2005 Suzuki Grand Vitara is # DM9518080. For a compatible tow bar you can use the Commander II, # DM9511012. This tow bar comes with safety cables as well so you would not need to add any additional cables. For lighting there are a few options but for something that is quick and easy and bypasses the vehicle wiring you can use a magnetic kit such as # RM-2120. Or for a more permanent solution our installers prefer the bulb and...
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  • Recommended Ball Mount Coupling All Terrain Tow Bar for 2006 Jeep Wrangler
    The ball mount coupling tow bar I recommend for your 2006 Jeep Wrangler is the Roadmaster Stowmater Tow Bar, part # RM-501. This all terrain tow bar is very popular with our customers and will work great with your Roadmaster XL Base Plate Kit, part # 1424-1. Along with a tow bar, you will need safety cables. I recommend Roadmaster 64 inch Single Hook Safety Cables, part # RM-645. For a supplementary braking system I suggest the Roadmaster Even Brake Portable Proportional Braking System...
    view full answer...


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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
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Michael H
Employee Jameson C
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Jameson C
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Lindsey S
Updated by:
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Employee Wilson B
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Wilson B
Employee Isabelle B
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Employee Jeff D
Installed by:
Jeff D
Employee Shane H
Installed by:
Shane H
Employee Jacob T
Video Edited:
Jacob T
Employee Michael B
Video by:
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