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RoadMaster Replacement LED Display Monitor for BrakeMaster Systems

RoadMaster Replacement LED Display Monitor for BrakeMaster Systems

Item # RM-300065-00
Our Price: $13.82
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Roadmaster Accessories and Parts - RM-300065-00
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Serving as a replacement for your BrakeMaster LED motor home display, this light works to alert you to the braking activity of your towed vehicle. Mounting bracket included. 1-636-306-4830 to order Roadmaster accessories and parts part number RM-300065-00 or order online at Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for RoadMaster Replacement LED Display Monitor for BrakeMaster Systems. Accessories and Parts reviews from real customers.
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  • Reviews (32)
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  • Videos (2)
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Roadmaster Accessories and Parts - RM-300065-00

  • Tow Bar Braking Systems
  • Electrical Components
  • Roadmaster

Serving as a replacement for your BrakeMaster LED motor home display, this light works to alert you to the braking activity of your towed vehicle. Mounting bracket included.


  • Display light provides quick visual reference to your towed vehicle's braking status
  • Power is drawn from your towed vehicle's electrical signal - no batteries required
  • Model functions as a replacement for BrakeMaster series supplemental braking systems (RM-9000, RM-9100, RM-9060 and RM-9160)
  • Made in the USA

300065-00 RoadMaster BrakeMaster LED Indicator Light with Bracket

Video of RoadMaster Replacement LED Display Monitor for BrakeMaster Systems

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for RoadMaster BrakeMaster Systems Replacement LED Display Monitor Review

Hi there flat towers today, we're going to be taking a look at Roadmaster's replacement monitor light for their supplemental braking systems. The monitor light illuminates inside your motor home when the brake pedal's depressed in your towed vehicle. You can see that here, when I hit the brake pedal, the light's going to eliminate. We're using a 9,700 breaking system from Roadmaster. So there is a delay, but you saw that it came on there. And then when we let off the brake here, it's going to go right off.

And this is going to work the same for all of our Roadmaster braking systems. But with some of those you won't experience that delay. You may need this light if your original one ceases to function, or if you've bought a new motor home and you're moving your components over to that motor home. Now, if you are moving your components over to a new motor home, in addition to your monitor light, I'd also recommend picking up Roadmaster's motor home monitor cable, which we have available here at that's going to be 50 foot of cable that has a bullet connector on one end that you can connect to the positive side of your light, which is going to be the red wire, and the other end you route to the back of your motor home. So you've got that bullet connector back there to plug in the patch cord that completes your circuit.

But for ease of shopping, we also have a kit available that has your monitor light, as well as the wire that you'll need to get it all installed. Now I didn't put the clip on the light yet, so you could see what it looks like, but if we slide it out here, you'll see it's got a couple of prongs on it, and that's what holds it tight in place. But there's also an additional metal clip that you can slide on after you've got it in to ensure that it stays in place.But with that clip on there, you can't pull it outside. I went ahead and removed it already so we can slide it out further so you can see the two wires here on the back. We've got a red wire and a white wire.

The white wire is your ground wire, and you can simply run that to ground using a self-tapping screw and a ring terminal or an existing ground stud that you have on your motor home. And this is the red wire that you'll hook to the monitor cable that we just spoke about, and this will run all the way to the back. You'll see here, it's labeled for 12 volts, so this is designed for 12 volt systems and it is an LED light so it's going to last significantly longer than your incandescent bulbs. And if you are installing this on a new RV, you'll be happy to hear that you do get a new Roadmaster sticker as well, because the likelihood of this one peeling off and sticking on your new RV is pretty low.We're now here at the back of our motor home, where you can see the single bullet connector that runs up to our monitor light. And that's right there.

We have our patch cable here, and if you're moving this over to a new motor home, you can use your old patch cable, there should be no issue with that. This wire here, however though, is likely going to be very difficult to remove from your motor home, so that's why we have it available as well here at And that completes our look at Roadmasters replacement monitor light for their supplemental braking systems.

Customer Satisfaction Score:

Customer Reviews

RoadMaster Replacement LED Display Monitor for BrakeMaster Systems - RM-300065-00

Average Customer Rating:  4.9 out of 5 stars   (32 Customer Reviews)

Serving as a replacement for your BrakeMaster LED motor home display, this light works to alert you to the braking activity of your towed vehicle. Mounting bracket included.


Easy installation, just what I needed to complete the invisibrake installation.


I actually called eTrailer to find this part to equip an additional tow vehicle. The eTrailer rep was very helpful.


It got here quick and it's an exact replacement for the original light that burnt out after 19 years.


The items were just as represented and expected. There was a mix-up at the post office and etrailer responded above and beyond expectations by reshipping the items before the original items were returned to them, resulting in a very timely delivery.

Worked great! I wouldnt hesitate to purchase from you again.
Dale K - 05/31/2020


Could be cheaper solutions of led lights, but this works fine and is easy to install in a 5/16" hole. Only problem is that it doesn't come with the sticker that labels the light. Not sure why not. Mine was in a plastic bag and maybe it was missing the original label.


Thanks Teresa for suggestion on my set of springs. You are one of the reasons I like person-to-person orders and not a call center.


I love the quality of the products I ordered. Customer relations was very good as well, they kept me informed and even though it took several weeks and etrailer had to wait on items to get to them, I was communicated to well. I know it’s important in who you deal within this day and time and you can trust etrailer.


Great to work with!


Didn’t realized how critical this little LED light is, if you want to be alerted when the towed vehicle’s braking system has a problem. If you’re towing without it, you need to add one.


These little LED lights can be used for a variety of other things besides just a replacement bulb. Any circuit where you need to know if something is getting power.


Simple install, works fine.


Just what I was expecting with good delivery time at a reasonable shipping cost. Perfect replacement for the original part and brighter than the old part which was nice as it was easier to see in the daylight.


The part was a perfect replacement. It is still working flawlessly a year later.


Works great


Excellent service ! Very fast shipping !


Works great ,easy to install ,was delivered way before expected ,service is great as always ,will do business again ,thank you very much


Exactly what I needed. Worked perfectly. Good price and received promptly.


the part is exactly like the original and was received promptly



Works well.


Works great arrived sooner than expected.


exactly as pictured. Fast delivery





Show More Reviews

See what our Experts say about this Roadmaster Accessories and Parts

  • Availability of Installation Video for Replacement Roadmaster LED Display Monitor # RM-300065-00
    We don't have an installation video specific to the Roadmaster Replacement LED Display Monitor # RM-300065-00 but I have attached a video below of us installing the entire Roadmaster InvisiBrake System # RM-8700. You can skip ahead to around the 13:25 mark to watch just the process of installing the LED Display Monitor. I have also included the complete installation manual below that you can look through.
    view full answer...
  • Should LED for InvisiBrake Supplemental Braking System Light Up Each Time Brakes Are Applied
    The LED Display Monitor for BrakeMaster Systems # RM-300065-00 should light up each time you brake with your motorhome as the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 is supposed to activate when the brake lights on your RV are illuminated. If the LED doesn't hardly light up then I would make sure that your RV brake lights are working correctly and that everything is installed properly for the InvisiBrake on your 2015 Kia Soul. You may want to have the company that...
    view full answer...
  • Is the Light that Shows Brake Activation Included in the RoadMaster BrakeMaster Second RV Kit
    Yes, I spoke with my contact at RoadMaster just to be sure and the LED Display Monitor for BrakeMaster Systems, replacement part # RM-300065-00, is included in the RoadMaster BrakeMaster Second RV Kit for Hydraulic Brakes, item # RM-98300, along with all of the parts needed for the RV.
    view full answer...
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  • Replacement LED Display Monitor for Roadmaster BrakeMaster
    From your description it sounds like what you need is the RoadMaster Replacement LED Display Monitor for BrakeMaster Systems # RM-300065-00 which will work with your Roadmaster BrakeMaster Braking System for RVs w/ Air or Air Over Hydraulic Brakes # RM-9100.
    view full answer...
  • Replacement LED Display Monitor for Roadmaster InvisiBrake Braking System
    Yes, the Roadmaster Replacement LED Display Monitor # RM-300065-00 will work on your InvisiBrake System # RM-8700. This same part is used on both braking systems so it will be a direct replacement. The white wire from the LED is just for ground and the red wire is for power. I have attached a wiring diagram from the installation manual that you might also find helpful.
    view full answer...
    Image 1 for
  • Brakes Are Still Working With Roadmaster BrakeMaster But LED Display Light Not Coming On
    You'll need to test to see if there is power getting to the LED light, and for that you'd test the red power wire using Cordless Circuit Tester # PTW2979. Removing it from the dash just depends on how you got it in, but generally it is drilled into the dash, with the decal pressed over the hole, so you'd need to remove that to access it. If the light is not working you'd need to replace it with RoadMaster Replacement LED Display Monitor for BrakeMaster Systems # RM-300065-00.
    view full answer...
  • Does a Monitor Light Come with the Second Vehicle Kit for RoadMaster BrakeMaster and Is It Needed
    In regards to a Roadmaster BrakeMaster System, the RoadMaster Second Vehicle Kit with BreakAway for BrakeMaster Systems part # RM-98160 which I think is what you have does not come with any sort of monitor light. However, this can be obtained with the RoadMaster Replacement LED Display Monitor for BrakeMaster Systems part # RM-300065-00. The monitor light is not required for proper functionality of system nor is it required by law to have one but I strongly recommend one as it could potentially...
    view full answer...
  • Installing an Indicator Light for Dinghy (Flat) Towing
    The long and short of it is that you need to route wiring from the cold side of the stop light switch (only gets hot when brake pedal is pressed) on your dinghy up to the location that you are mounting the RoadMaster Replacement LED Display Monitor # RM-300065-00 in your motorhome. The red wire is for power and the white wire is for ground. If you are able to add an extra wire from your towed vehicle and route it up to your motorhome then you are more than welcome to do so. Otherwise...
    view full answer...

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Info for this part was:

Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
Installed by:
Kathleen M
Employee David F
Installed by:
David F
Employee Dustin K
Video by:
Dustin K

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