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Roadmaster Stop Light Switch Kit

Roadmaster Stop Light Switch Kit

Item # RM-751449
Our Price: $40.90
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Tow Bar Braking Systems
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Roadmaster Tow Bar Braking Systems - RM-751449
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Avoid damage to your vehicle by ensuring that your supplemental braking system is properly positioned and working effectively. Kit activates your RV monitoring system to alert you when the brakes of your towed car are being applied. Lowest Prices for the best tow bar braking systems from Roadmaster. Roadmaster Stop Light Switch Kit part number RM-751449 can be ordered online at or call 1-833-496-1390 for expert service.
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  • Reviews (30)
  • Q & A (0)
  • Photos
  • Why etrailer?

Roadmaster Tow Bar Braking Systems - RM-751449

  • Stop Light Switch
  • Roadmaster

Avoid damage to your vehicle by ensuring that your supplemental braking system is properly positioned and working effectively. Kit activates your RV monitoring system to alert you when the brakes of your towed car are being applied.


  • Activates motorhome brake-monitoring system whenever brake pedal in towed car is applied
    • Ensures that the supplemental braking system is functioning properly
  • Works great for any application that does not have a tow position in the ignition
  • Wires directly into towed car's fuse box for constant current
  • Made in the USA
  • Limited Lifetime Warranty


  • Application: custom fit for your vehicle
  • 12 Volts

This kit allows your RV's monitoring system to alert you whenever the brake pedal of your towed car is being applied. Other systems operate according to whether the air cylinder is extended and provide no indication of what is happening with the pedal itself. If your supplemental braking system is improperly installed, it may be continuously pressing on the pedal, impeding it from fully retracting and possibly causing damage to your vehicle's tires and braking system. With Roadmaster's Stop Light Switch Kit, you will always know when the brake is being depressed, and you will avoid costly damage.

751449 Road Master Stop Light Switch Kit

Installation Details RM-751449 Installation instructions

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

Roadmaster Stop Light Switch Kit - RM-751449

Average Customer Rating:  4.9 out of 5 stars   (30 Customer Reviews)

Avoid damage to your vehicle by ensuring that your supplemental braking system is properly positioned and working effectively. Kit activates your RV monitoring system to alert you when the brakes of your towed car are being applied.


Unit worked well, fit nicely. Was awkward for me to install because of location under dash, but bracket was designed well fit right up.


Working like a champ! Install was a breeze with etrailer. Can't believe that I was on the road without a TOAD brake.


Works as it should, a little difficult to install (physically), but had to have it for my application, well made and quality parts.


Bracket came with one undersized bolt and nut. The bracket it attached to had two holes. If the bracket was longer and had another bolt it would be more stable.

I recommend looking at the video installation that we have on a 2015 Jeep Grand Cherokee starting at mark 2:18. You can see the bracket location and that it uses a five sixteenth by three quarter inch bolt.
-- Etrailer Expert Jenny N - 12/16/2021


Worked good


Instructions were clear making the installation relatively easy. Parts fit like they were supposed to.


Great product. Works great. Installation was a little tricky for my Jeep Grand Cherokee but we figured it out.


doable but not easy


Used it for the brake activation light in my towed vehicle. Easily adjustable as far as depth . Positioning took a little work but the bracket is specific to a vehicle other than mine.


Upon the recommendation of one of your towing specialists, I ordered every component that I needed to flat tow my 2014 Jeep Grand Cherokee behind my 2013 Newmar Bay Star motorhome. I got the necessary Roadmaster tow bar and other accessories plus the SMI Stay-IN-Play braking system. I have towed over 5000 miles so far without any significant issues. Hook up is straight-forward and takes about 15 minutes to complete. I couldn't be happier with the towing experience!


Patrick went above and beyond in locating the components needed to outfit my jeep for 4 flat towing...etrailer also had the best price,no tax and free quick shipping.highly recommend joe b

Really good.thank you!!
Joe b - 01/28/2018


Stacey A did an amazing job with all the questions and took great care of the order!!


Instructions in the kit and video on the website were very complete and made for a very easy installation. Suggestion to Roadmaster on the bracket....make some sort of positive location tab for the bracket because the location is only made secure by the tightening of the bolt. Also, the way the Jeep bracket that you bolt to is designed, there's no way to get a wrench or socket to hold the backside bolt head. Maybe come up with something to keep it from spinning.


All of the products I have purchased were perfect. The shipping was right on time. I have told several of my friends and acquaintances about


Works as it should


Exact items needed for 2007 Jeep Grand Cherokee installation of alternative braking system.


A necessity for the towing application. It works perfectly.


Nice switch, used this as an add on switch for brake controller for 2018 Jeep Compass


Everything Installed and worked well. Towed my Grand Cherokee Back from California with no problems.


Awesome. I’m so glad I got this. Very H appy.


These guys are pros. When in the middle of an install these guys saved the day with their product knowledge. Thanks for the help.





Show More Reviews

See what our Experts say about this Roadmaster Tow Bar Braking Systems

  • How to Connect Brake Controller to Cold Side of Brake Light Signal Aside from the Stop Light Switch
    To accommodate your situation you would either need a stop light switch kit, like part # RM-751449, or simply connect the that specific wire from your brake controller to a 3rd brake light or any circuit that only gets hot when your brake pedal is pressed. A diode should not be used in this situation. The stop light switch kits are vehicle specific so it you could let me know what the year/make/model of your vehicle is I can see if we have one confirmed as a fit for your application.
    view full answer...
  • Is a Brake Lite Relay Required for 2018 Jeep Grand Cherokee Being Flat Towed
    I understand, there is a lot of components to flat tow a vehicle and even from year to year model changes can make a big difference. You do not need a brake lite relay for the Roadmaster Even Brake Portable Supplemental Braking System # RM-9400 on your 2018 Jeep Grand Cherokee. That's because when you put your Grand Cherokee into "tow mode" the brake pedal does not provide any power to the brake lights. A brake lite relay is used to not allow power to go through when towing, and allow...
    view full answer...
  • Wiring Roadmaster Brake Light Switch Kit for SMI DUO and Coachlink
    To use the Roadmaster Stop Light Switch Kit # RM-751449 that you referenced for two circuits is not difficult at all. If you check out the picture I attached you'll see where to add the second wire to the butt connector so that the switch can work for both products you mentioned.
    view full answer...
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  • Seat Bracket and Stoplight Switch to Use Roadmaster BrakeMaster on 2020 Jeep Grand Cherokee
    Yes we do have a custom seat bracket adapter for the BrakeMaster part # RM-9160 for your 2020 Jeep Grand Cherokee Trail Hawk with the part # RM-88287. Roadmaster also recommends using the stop light switch kit part # RM-751449 as well with your vehicle.
    view full answer...
  • Where Should The 12 Volt Wires Be Connected On A 7 Way To 6 Way Wire Connection?
    I will start by saying I can find nowhere that says your 2020 Jeep Grand Cherokee needs to have the battery disconnected in order to be flat towed. However, I did find a few things about people contacting the Jeep Product Information Center and them then saying that this was something they had originally said in the owner's manual, but is no longer needed for flat towing. With that being said, it is required that you use the Stop Light Switch Kit # RM-751449 if you are going to be using...
    view full answer...
    Image 1 for
  • Seat Adapter and Stop Light Switch Kit for BrakeMaster System on a 2014 Jeep Grand Cherokee Overland
    To use the Roadmaster BrakeMaster system # RM-9160 on your 2014 Jeep Grand Cherokee Overland, you will need the following items: Stop Light Switch kit, # RM-751449 Seat Adapter, # RM-88287 Because your Grand Cherokee has a combined lighting system (the brake lights and turn signals are on the same circuit) you should not need a brake light relay.
    view full answer...
  • Can the Roadmaster InvisiBrake Supplemental Braking System be Used on a 2011 Jeep Grand Cherokee
    Yes, you can use the InvisiBrake, # RM-8700, on your 2011 Jeep Grand Cherokee. In order for it to work properly you will need to have a wiring system that taps into the vehicle wiring like # RM-154 and you will need Stop Light Switch Kit, # RM-751449. I have included a link to a video showing a typical installation of the InvisiBrake for you to view. I have also included some helpful links on flat towing for you.
    view full answer...
  • Will Roadmaster Diode Kit Work With 2016 Jeep Grand Cherokee With Combined Lighting?
    You were correct that your 2016 Jeep Grand Cherokee has a combined wiring system though you will still be able to use the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 without hurting your Jeep's electronics. If you take a look at the chart I've attached you can see that there are enough diodes provided to work without messing up your Jeep's electronics. As far as keeping the SMI Air Force One Supplemental Braking System # SM99243 from overriding the turn signals,...
    view full answer...
    Image 1 for
  • Can the Monitor Light and CoachLink be Hooked to the Same Wire
    For starters, a 2015 Jeep Grand Cherokee and 2015 Jeep Wrangler are very different vehicles in regards to flat-towing components so looking at installation videos on a Wrangler is just going to confuse you. The Grand Cherokee actually does not have an active stop light circuit so you will need to use the Roadmaster Stop Light Switch Kit part # RM-751449. The Jeep Wrangler does have an active stop light switch circuit which is why you need to use the Roadmaster Brake-Lite Relay Kit part...
    view full answer...
  • Parts Needed to Flat Tow a 2014 Jeep Cherokee Trailhawk with Blue Ox Base Plate Kit
    In order to successfully flat-tow your 2014 Jeep Grand Cherokee Trailhawk you are going to need a few additional parts outside of the Blue Ox Base Plate Kit part # BX1128 and the M&G Supplemental Braking System. I have listed these parts for you below: Blue Ox Alpha 2 Tow Bar part # BX7380 Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part # RM-15267 Roadmaster Stop Light Switch Kit part # RM-751449 The stop light switch kit listed above is a requirement for proper usage with...
    view full answer...
  • What Powers The Diodes In A Diode Wiring Kit
    The diode wiring isn't going to be wired in series so you won't have to worry about the voltage increasing. It will only be powered by the 7-way of your motorhome when the brakes or the turn signals are activated on the motorhome. I've attached a video below where Ryan will walk you through the installation of your diode wiring. Since your 2022 Jeep Grand Cherokee has combined wiring and an unusable brake light switch wire you'll need the Roadmaster Stop Light Switch Kit # RM-751449 (WK...
    view full answer...
  • Best Base Plates and Flat Towing Set Up for a 2014 Jeep Grand Cherokee and Blue Ox Aladdin Tow Bar
    Blue Ox base plates # BX1128 are the best option for use with the Aladdin tow bar on your 2014 Jeep Grand Cherokee Limited. We haven't had the chance to install these base plates on a Grand Cherokee yet so we don't have a video, it is possible that an internet search will reveal a video. What I can do is link the installation instructions for you to the right. I have also linked a review video of the tow bar. In addition to the base plates and tow bar (the tow bar comes with safety cables...
    view full answer...
  • Recommended Flat-Towing Setup for a 2014 Jeep Grand Cherokee Limited
    The items you will need to flat tow your 2014 Jeep Grand Cherokee are base plates, tow bar, tow bar wiring and a braking system for towed vehicle. For base plates, I recommend the Roadmaster # RM-521440-4 as these will work with several versions of your 2014 Jeep Grand Cherokee Limited as long as it's not an SRT-8 model. The steel construction is computer cut providing awesome strength. Within the instructions you will find numerous installation photos. Next, you will need tow bar. The...
    view full answer...
  • How to Flat Tow a 2014 Jeep Grand Cherokee Summit Behind a Motor Home
    The trimming and drilling is minor for base plate installation on your 2014 Jeep Grand Cherokee Summit. I've linked the installation instructions for Roadmaster base plates # RM-521440-5 so you can see what is involved in the installation. In addition to the base plates you will also need a compatible tow bar, safety cables, lighting, and supplemental braking. For a tow bar I recommend the Sterling All Terrain, # RM-576, rated for 8,000 pounds. It also includes safety cables. For lighting,...
    view full answer...
  • Will RoadMaster Pedal Clamp # 9329-b Work with a 2015 Jeep Grand Cherokee?
    The Replacement Pedal Clamp for BrakeMaster Braking System # RM-9329-B will work for your 2015 Jeep Grand Cherokee. It is a fit for the Roadmaster BrakeMaster System # RM-9160 or # RM-9060. For either system you will also need the RoadMaster BrakeMaster Custom Seat Adapter # RM-88287 and Stop Light Switch Kit # RM-751449 for proper function of that supplemental braking system.
    view full answer...
  • Equipment Needed to Flat Tow 2017 Jeep Grand Cherokee
    I'd be happy to run through that for you. For base plates compatible with the Blue Ox # BX4370 Ascent tow bar, I'd recommend the # BX1128 base plates. The tow bar includes safety cables. For wiring, I'd recommend a diode system like the Roadmaster # RM-15267. The Roadmaster Even Brake, part # RM-9400 would be a great choice, it installs in just a couple of minutes and won't require an expensive and time consuming installation. You'll also need the # RM-751449 stop light switch. Finally,...
    view full answer...
  • Recommended Base Plate Kit and Other Parts to Flat Tow a 2017 Jeep Grand Cherokee Laredo
    The Roadmaster EZ5 Base Plate Kit # RM-521440-5 is a fit for your 2017 Jeep Grand Cherokee and will also work with your Falcon tow bar. You will not need the crossbar with this kit. If you don't already have them you'll also need safety cables, wiring, a braking system, and likely a high-low adapter to flat tow the Jeep. The safety cables I recommend at # RM-643. They're coiled which helps keep them off of the ground. To power the Jeep's lights I suggest the diode kit # RM-15267. This...
    view full answer...
  • Complete Flat Towing Package Recommendation for a 2014 Jeep Grand Cherokee Limited
    To tow your 2014 Jeep Grand Cherokee with your motorhome there are several things that you will need. You will need a tow bar, base plate kit, safety cables, tow bar wiring, and a supplemental braking system. The tow bar installs on your motorhome and then connects to the base plates on your Jeep. I was able to find that your 2014 Jeep Grand Cherokee has a gross vehicle weight of up to 6500 pounds, so a tow bar that is rated for this weight that I recommend is the Roadmaster Blackhawk...
    view full answer...
  • Stowmaster Tow Bar Compatible Base Plate Kit for 2020 Jeep Grand Cherokee
    By brackets, I'm assuming you're meaning base plates that install on the vehicle and provide an attachment spot for the tow bar. If that's the case, I'd recommend the Roadmaster # RM-521440-4 which is compatible with all models except for SRT-8, Trackhawk and models equipped with a brush guard. Tow hooks, if present will need to be removed and left off the vehicle. This is an EZ4 style base plate which is compatible with the # RM-501 Stowmaster tow bar. In addition to the tow bar and...
    view full answer...
  • Comparing the Blue Ox Patriot and Roadmaster Even Brake Systems for a 2018 Jeep Grand Cherokee
    Even though the Blue Ox Patriot # BLU37TR and the Roadmaster Even Brake # RM-9400 are very similar systems I recommend using the Patriot II. It is easier to set up, uses less power so it will take much longer for this system to drain your battery, and it doesn't require the use of additional parts so that it is compatible with your vehicle. Attached are some videos that you can reference for the installation. For a complete flat towing setup you will need a base plate kit, tow bar, safety...
    view full answer...
  • Recommended Tow Bar and Other Parts to Flat Tow a 2014 Jeep Grand Cherokee Limited
    The tow bar I recommend is the Roadmaster Falcon 2 # RM-520. It's one of our most popular tow bars and you can't go wrong with it. It self aligns as you drive forward in your RV. It's also compatible with all Roadmaster base plate kits. The base plate kit I suggest is the Roadmaster EZ4 # RM-521440-4. It's designed specifically for your 2014 Jeep Grand Cherokee Limited. The arms are removable so they're not as noticeable as other kits can be. To power the Jeep's lights I suggest...
    view full answer...
  • Base Plates for 2014 Jeep Grand Cherokee with Roadmaster Eagle 8000 Tow Bar
    To flat tow your 2014 Jeep Grand Cherokee with the Eagle 8000 tow bar you can use the Roadmaster Direct-Connect Base Plate Kit # RM-521440-5, which is the EZ-5 base plate kit. The other parts you will need to flat tow your '14 Grand Cherokee are: - Safety Chains: RoadMaster 68" Coiled Safety Cables # RM-643 - Wiring Kit: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 - Supplemental Braking System: Roadmaster InvisiBrake # RM-8700 - Roadmaster Stop Light Switch Kit #...
    view full answer...
  • Recommended Base Plates and Accessories for Flat Towing 2012 Jeep Grand Cherokee Behind a Motorhome
    It looks like you're on the right track with the Roadmaster # RM-521440-5. I also recommend the Roadmaster # RM-155 lighting kit, because it will remain completely independent of the vehicle's lighting circuits. Your BrakeMaster will work, but you'll need a seat adapter, part # RM-88287 and a # RM-751449 stoplight switch kit, which is compatible with vehicles with non-adjustable pedals only. Since your GC has a combined taillight system, you won't heed the # RM-88400 relay. You won't...
    view full answer...
  • How to Find the Stop Light Circuit on a 2018 Jeep Grand Cherokee
    For starters, have you checked for the brake controller adapter port under the drivers kick panel near the emergency brake pedal (see video). If not I recommend doing so as most of these vehicles came with the brake controller adapter port regardless if yours came with the factory tow package or not. If you have a Tekonsha brake controller like the Tekonsha Prodigy P3 Trailer Brake Controller part # 90195 and you have the brake controller adapter port then you can use the Tekonsha Plug-In...
    view full answer...

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