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Roadmaster Universal Stop Light Switch Kit

Roadmaster Universal Stop Light Switch Kit

Item # RM-751000
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Our Price: $124.34
Tow Bar Braking Systems
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Shipping Weight: 0.49 lbs
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Roadmaster Tow Bar Braking Systems - RM-751000
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Avoid damage to your towed car 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 Universal Stop Light Switch Kit part number RM-751000 can be ordered online at or call 1-833-496-1390 for expert service.
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  • Reviews (20)
  • Q & A (0)
  • Photos
  • Why etrailer?

Roadmaster Tow Bar Braking Systems - RM-751000

  • Stop Light Switch
  • Roadmaster

Avoid damage to your towed car 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
    • Compatible with any vehicle that has a brake pedal and any supplemental braking system that presses the brake pedal
  • Installs quickly and easily
    • Mounts beneath dash on brake pedal arm
    • Connects with just 3 wires - power, ground, and brake light connection
  • 12 Volts
  • Made in the USA

By tapping into your towed car's brake-light switch, 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.

751000 Road Master Universal Stop Light Switch Kit

Replaces Roadmaster RM-751477

Installation Details RM-751000 Installation instructions

This Product Fits The Following Vehicles

Customer Reviews

Roadmaster Universal Stop Light Switch Kit - RM-751000

Average Customer Rating:  4.9 out of 5 stars   (20 Customer Reviews)

Avoid damage to your towed car 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.


System is good, but when the car sits awhile, it has to be reset, or it won't connect the signal. We had to call Roadmaster, and of course because it was a weekend we had to wait until Monday and just use the system without the reset. Nothing about how to reset it online that we could find.


Install was slow due to room around brake pedal but doable if you are a DYI person. Only critical of product is the indicator light is not close to being visible. I ended up putting quick connectors on wires and replacing the tiny light in the kit with a larger brake light bar


This worked well for me. Installed it in Subaru Forester. Using this eliminated need to connect to Subaru brake circuit.


Excellent product. Just exactly what I needed to work in harmony with
braking system.
Etrailer has the most professional,customer friendly website I have used.

They take the guess work out of ordering product. Technical staff is awesome
they communicate very well and very patience with you.


You folks have great installation videos - helps me from breaking brittle plastic clips!


Had it for a year, absolutely no problems. Works beautifully.

A year later the system is working great!
Julie - 01/30/2022


Took 3 trips to RV shop and still didn't work. They didn't know brake light switch was required on '18 Fiesta. Then installed sensor backwards; I removed, reinstalled it, then had to paint the firewall white. Now works great!


After fighting with the brake light switch on my Jeep JL, I ordered this instead. It went on so easy and so quick I had to reread the instructions to make sure I didn't miss anything. The only drawback I see is the Even Brake wiring and the rest of the wiring is roughly 14-16 gauge, and the wires on this item might be 20 gauge. No worries, they were plenty long enough that I took an inch of insulation off and folded it a few times. Used a heat shrink connector with solder and it easily passed the pull test.


The kit was simple to install and worked flawlessly with my even brake system.


Easy to install with instructions, setup went great, wired back through motorhome 7-way plug.


Works exactly as designed for rigs that don't have an easy solution for adding trailer brakes. I would buy it again!


I have only used this on several short trips andonce on a long trip and it seemed to work fine. I did have an issue with the first unit i received and they were will to ship me a replacement along my route so it did not hold up my trip. I really appreciated the customer service on that issue.
I will say i have not made any sudden stops so i can't comment on how much braking is actually happening but i believe it is assisting in the braking.


The kit worked great. No problems. The instruction video was perfect.



Great service....extremely prompt shipping and follow-up.







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

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Jonathan Y
Video by:
Jonathan Y
Employee Thomas T
Video by:
Thomas T
Employee Robert C
Test Fit:
Robert C
Employee David F
Test Fit:
David F
Employee Mike S
Written by:
Mike S

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