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Roadmaster Stop Light Switch Kit

Roadmaster Stop Light Switch Kit

Item # RM-751475
Retail:$63.53
Our Price: $45.73
You Save: 28%
Tow Bar Braking Systems
Shipping Weight: 0.72 lbs
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Roadmaster Stop Light Switch - RM-751475
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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. Great Prices for the best tow bar braking systems from Roadmaster. Roadmaster Stop Light Switch Kit part number RM-751475 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (10)
  • Q & A (0)
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Roadmaster Tow Bar Braking Systems - RM-751475

  • 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.


Features:

  • 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


Specs:

  • 12 Volts
  • Application: custom fit for your vehicle


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.

751475 Road Master Stop Light Switch Kit

Installation Details RM-751475 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Stop Light Switch Kit - RM-751475

Average Customer Rating:  4.6 out of 5 stars   (10 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.

by:

Had an issue with expedited shipping. Once I received the part I contacted etrailer and it was resolved within a couple minutes.



by:

Some pieces from this kit were needed for installing a brake Controller in a 2016 Sprinter, without the tow package. It works and the van doesn't flag any errors or codes. I talked to a helpful etrailer rep before buying to confirm my application and that personalized service was much appreciated.



by:

Installed in 2016 Ford Edge Titanium. Had to buy additional cable connectors that were not included in the kit and instructions did not specify they were required. I would have given 5 stars if it was at least mentioned in the instructions.



by:

Ordered parts for installing a brake controller.
The videos that are part of the web site were a great help in selecting all the needed parts, detailed down to the part numbers that were needed.
I really like the fact that there is a video showing the brake controller installation with my specific vehicle.
Great service !



by:

This is a great device. The reason I bough it from ETrailer is because of customer service. They are super helpful.

Place the brake as suggested and try it out. Works just as expected.



by:

It fit perfect in my 2022 Lincoln Nautilus! And the instructions were excellent and well done! Thank you folks !!



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

  • Can a 2013 Ford Edge Be Flat-Towed with All Four Wheels Down
    The 2013 Ford Edge can be flat-towed with all four wheels down behind a motorhome so long as you don't have a model with the I4 2.0L Eco Boost Engine. I have attached a list of parts below to flat-tow the above vehicle. Roadmaster Crossbar-Style Base Plate Kit part # 4408-1 Roadmaster Falcon All Terrain Tow Bar part # RM-522 RoadMaster 68" Single Hook, Coiled Safety Cables part # RM-643 Hopkins Custom Tail Light Wiring Kit for Towed Vehicles part # HM56001 SMI Stay-IN-Play DUO Supplemental...
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  • Parts Needed To Use Roadmaster Brakemaster Air Cylinder In New Vehicle and Motorhome
    If you want to use the Roadmaster Brakemaster cylinder part # RM-9100-50 that your friend gave you I have listed the parts below that you will need to use it in the Lincoln. I highly recommend to use the custom seat adapter because if not you will need to drill holes through the floor board of your brand new Lincoln if you use the Universal Floor mount your friend gave you. The stop light switch is needed in the Lincoln to protect the system just in the case that something with the braking...
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  • Parts Needed to Install Brake Controller 2024 Mercedes Sprinter 3500
    I checked with Redarc and a few other brake controller manufacturers and they state that your 2024 Mercedes Sprinter 3500XD does not have an OEM brake controller install port under the dash like previous models so you would have to hardwire in the Redarc Tow Pro Liberty part # RED24FR with the install harness # RED69FR and the brake controller install kit part # 5506 which wires to the OEM 7-way you have. We've also heard that the stoplight switch circuit is hard to find on your vehicle...
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  • Can The Tekonsha Prodigy P3 Brake Controller Be Installed On A 2017 Mercedes-Benz Sprinter 3500?
    This is actually an issue with the Mercedes-Benz Sprinter 3500 in the 2017 model year if it was not equipped with the factory tow package. Due to the vehicle's wiring system, as you mentioned, you will need the stop light switch kit # RM-751475 to bypass the factory switch. Typically modification of the included bracket will be necessary for installation, but this is pretty easy to do. Once this is installed, you will have absolutely no problem using your Tekonsha Prodigy P3 # 90195.
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  • Trailer Brake Controller Installation in 2017 Mercedes-Benz Sprinter 2500
    There is no plug-and-play brake controller harness for the 2017 Mercedes-Benz Sprinter 2500 so brake controller installation will be a hard-wire process. Under the driver's seat there should be a green plug. The wires to this plug can be tested with a circuit tester like # PTW2993 to confirm their function since vehicle wire colors are not always consistent. A brake controller like the Prodigy P2 # 90885 has 4 wires that require connection to the Sprinter. The black wire is 12V input...
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  • Should I Disconnect My Ford Edge Battery Before Flat Towing and Can I Still Use A Braking System
    It does sound like the older Honda's battery was drained because the ignition was in neutral and the vehicle's features or accessories were drawing power while being flat towed. Vehicle manufacturers have since realized this and require the battery to be disconnected in some vehicles. We do recommend that you disconnect the battery like the owner's manual says to prevent the battery from draining. Since vehicle's have more electronic features and more sophisticated computer systems then...
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  • Recommended Automatic Battery Disconnect for 2015 Ford Edge with Supplemental Braking System
    Since the battery in your 2015 Ford Edge needs to be disconnected before flat towing the vehicle, I recommend using the Roadmaster Automatic Battery Disconnect with Switch # RM-766. This is confirmed to work on your Edge and will allow for convenient disconnect of your battery. This system includes a switch that can be installed inside your vehicle for simple and easy operation. To power a supplemental braking system like the Roadmaster Even Brake # RM-9400 with the battery disconnected,...
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  • What Is Needed To Pull A Trailer With Electric Brakes Using A 2016 Mercedes-Benz Metris?
    In order to tow a 4000lb trailer with your 2016 Mercedes-Benz Metris, you first need a hitch. I would go with the Curt Trailer Hitch Receiver Class III - 2" # C13276. This is the highest weight capacity hitch we offer and has a max tongue weight of 900lbs and max towing capacity of 6000lbs. In order to get a 7-Way Plug-in on your Metris, you first need to install a 4 Pin trailer wiring kit if your vehicle does not already have one. I recommend going with the ZCI 4-Pole Flat Trailer...
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  • Trouble Locating Cold Side of Stop Light Switch for Brake Controller on 2014 Mercedes-Benz Sprinter
    There are some wires that are hot all of the time which is why we usually try to emphasize that the brake controller, like the Prodigy P3 # 90195, needs to be connected to the cold side of the stop light switch when installing the Kit # ETBC7. Sometimes a vehicle will not have a wire connected to the cold side of the stop light switch which is what you are finding. In that case you will simply need to install the Roadmaster Stop Light Switch Kit # RM-751475. This is typically used for...
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    Image 1 for
  • Recommended Roadmaster Base Plate and Demco Adapter for a 2015 Ford Edge 3.5 AWD
    I would be happy to help you! I saw you were looking at the Roadmaster Crossbar-Style Base Plate Kit item # RM-524454-4. This base plate kit is confirmed to fit the 2015 Ford Edge 3.5L with Adaptive Cruise Control and without Adaptive Cruise Control. To use this with your Demco tow bar you will need the Demco Tow Bar Adapter for Roadmaster XL and EZ Series Base Plates item # DM9523001. I have listed some other parts you will need to flat tow your Ford Edge below. You are going to need...
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  • Recommended Trailer Wiring and Brake Controller for 2016 Mercedes-Benz Sprinter 2500
    Everything looks great. Since you already have the 4-way, then, the Universal Wiring Kit # ETBC7 is exactly what you need to install a fully functional 7-Way from your 4-Way. I have attached an article that details the installation steps for this kit that you might find helpful. On your particular vehicle, the brake pedal signal wire is not easily accessible, so it is recommended to add the Stop Light Switch Kit # RM-751475 for proper installation. Lastly, the Tekonsha Prodigy P3 Trailer...
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  • Recommended Proportional Trailer Brake Controller for Use with Tow Dolly with Electric Brakes
    The trailer brake controllers we most often recommend are the proportional type that slow the towed item (in your case the tow dolly with your 2011 Mini Countryman) at the same rate that the tow vehicle itself slows down. This proportional braking reduces the "tug of war" feeling between the dolly and the tow vehicle. The two versions of our preferred Prodigy controller, the P2 # 90885 and the P3 # 90195, use the same internal technology but the P3 delivers this with additional user-friendly...
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  • How to Obtain Brake Light Signal in 2018 Mercedes-Benz Sprinter Chassis
    The ground (cold side) of the brake light signal in a Sprinter can sometimes be found in the wiring above the brake pedal. A high-sensitivity LED circuit tester will be required to test this due to the weak signal strength in this wire. This is due to the low voltages in this vehicle's wiring system. In other cases you may need to install an accessory stop light switch kit # RM-751475 to provide that brake light signal needed to trigger a brake controller like the Prodigy P3 # 90195.
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  • Recommended Proportional Braking System for Flat Towed 2015 Ford Edge
    Among the options for flat towing braking systems for use in your 2015 Ford Edge, the Blue Ox Patriot # BLU37TR offers probably the least intrusive and easiest installation. Since the Patriot is wireless and portable the only required changes to the Edge itself are installation of the 12V power outlet kit # RM-9332 and the Stop Light Switch kit # RM-751475. Both of these small parts are easily removed if desired. The real beauty of the Patriot is that it can stay with you for as long as...
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  • Recommended Electric Trailer Brake Controller for a 2016 Mercedes-Benz Sprinter with Tow Package
    It sounds like you're looking for an electric brake controller for your 2016 Mercedes-Benz Sprinter. There isn't a confirmed plug and play wiring adapter for your van. If you have a connector under the dash send me a picture of it and I'll see if we have something that will work for you. Since you have the tow package with a 7-way trailer connector you'll just need the wiring kit # 5506. You'll also need a brake pedal switch # RM-751475 because of the wiring system of the van. Check...
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  • Procedure and Equipment Needed to Flat Tow 2015 Ford Edge SEL Behind Motorhome
    According to what I've read in the owner's manual, your Edge can indeed be flat towed if the specific procedures listed in the manual are followed precisely. To flat tow your Edge, hook up to the motorhome then press and hold the brake to the floor. Start the vehicle and shift into Neutral with the brake pedal still pressed then turn off the vehicle. On a keyless start equipped vehicle, push the keyless start button one to shut off. If the vehicle has an ignition key, turn the vehicle...
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  • Brake Controller Recommendation for 2024 Mercedes Sprinter 4500
    The brake controller you are looking for for your 2024 Mercedes Sprinter 4500 would be the Redarc Tow Pro Liberty part # RED24FR with the install harness part # RED69FR. Since the vehicle doesn't have a great stoplight circuit signal you'd need the part # RM-751475 too.
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  • Parts Necessary to Flat Tow a 2017 Ford Edge
    According to the owner's manual of your 2017 Ford Edge the vehicle can be flat towed with a 2.7L V6 EcoBoost, though are a number of parts you will need in order to do this, starting with compatible base plates. The ones you need will depend on the model of your Edge; I recommend the Blue Ox # BX2667 if you have either the SE, SEL or Titanium model of Edge. If you have a Sport model, the base plates you need are going to depend on whether or not you have Active Cruise Control. Roadmaster...
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  • Will the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles Work on a 2015 Ford Edge SEL
    I do have an option but the Hopkins Custom Tail Light Wiring Kit part # HM56011 will only fit the 2015 Ford Edge Sport/Titanium, not the 2015 Ford Edge SEL. The 2015 Ford Edge SEL has variable voltage taillights which is where the issue lies. Therefore, you will need to use the Roadmaster Wiring Kit part # RO44FR which requires splicing. There are no plug and play flat-tow wiring harnesses for a 2015 Ford Edge SEL unfortunately. I have attached some other parts you might need as well below. Roadmaster...
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  • Brake Controller Install On 2019 Mercedes-Benz Sprinter 2500 Without Green Plug Under the Seat
    As long as your 2019 Mercedes-Benz Sprinter 2500 has a factory plugin connection point for the adapter part # 3063-P you will not need to make any modifications to the adapter, it will plug right in into the factory plug and the other end to a Tekonsha, TrailerMate or Draw-Tite brake controller. The plug that the harness will use is located under the driver seat. It is a green four pin plug which can be seen in the attached photo. If you do not have this factory plug then the green plug...
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    Image 1 for Image 2 for
  • Parts Needed to Wire Brake Controller to 2017 Mercedes Benz Sprinter with Green Connector
    Since you have brake controller pre-wiring already on your 2017 Mercedes Sprinter 3500 you would not need to use a stop light switch like part # RM-751475. We don't sell a connector that plugs right into it, but you can still use it to wire up a brake controller like the P3 part # 90195. You'll need to cut the connector off and then wire the vehicle wiring to the controller's wiring. On the controller the blue wire is the brake output circuit which runs to the 7-way of the vehicle, the...
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  • Can the 2019 Ford Edge With 8 Speed Automatic Transmission Be Flat Towed
    From what I have found, the 2019 Ford Edge with the 8 speed automatic transmission is the ST with the 2.7L engine. If you have the 2.0L then you will not be able to flat tow your vehicle and would need a dolly like the # RM-2050-1. If you have the ST model then you will be able to flat tow this vehicle as long as you keep it under 65 mph. Make sure to consult your owner's manual to confirm this information and follow any instructions listed for recreational towing. For flat towing the 2019...
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  • Recommended Base Plates and Components for 2018 Ford Edge Titanium with Adaptive Cruise Control
    For your 2018 Ford Edge Titanium there is only one base plate kit confirmed to work with the Adaptive Cruise Control. It is the Blue Ox Base Plate Kit - Removable Arms # BX2667 which will then require the adapter # RM-031 which works on Sterling tow bars with serial numbers up to 16,500. If the serial number on your tow bar is 16,501 or above, then the adapter # RM-031-5 is the correct fit. For your tow bar wiring, I recommend the RoadMaster Sterling All Terrain Towing Combo Kit # RM-9284-2...
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  • Can A 2023 Lincoln Nautilus Be Flat Towed?
    Hello Raymond, a 2023 Lincoln Nautilus can be flat towed, but only if it is a 2.7L V6. The 2.0L AWD and FWD models cannot be flat towed and must be towed with all 4 wheels off of the ground, such as using a car trailer. If yours is a 2.7L V6, you can flat tow using the manual park release procedure highlighted on page 218 of your owner's manual. You will want to put your climate control system in recirculated air mode to prevent exhaust fumes from entering the vehicle. Also, you can never...
    view full answer...


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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Laura H
Written by:
Laura H
Employee Dustin K
Video by:
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Employee Michael B
Video by:
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Updated by:
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Employee Mike S
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Employee Isabelle B
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Employee Shane H
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Employee David F
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