Roadmaster InvisiBrake Flat Tow Brake System - Preset
(231 reviews)
Price: $1,170.70
In Stock
Roadmaster InvisiBrake Flat Tow Brake System - Preset
Item # RM-8700
Retail:$1,584.94
Our Price: $1,170.70
You Save: $414.24
Will this fit?
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
In Stock
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
- All Info
- Reviews (231)
- Q & A (0)
- Photos
- Used (1)
Roadmaster Tow Bar Braking Systems - RM-8700
- Brake Systems
- Air Brakes
- Hydraulic Brakes
- Pre-Set System
- Roadmaster
- Fixed System
- Power Assist Brake Compatible
- One Time Set-Up
Plug-and-play: this permanent system gets you automatic braking with a one-and-done installation. Actuator box installs out of your way under the front seat. Adjustable pressure setting for comfortable braking. Charges car battery while towing.
Features:
- Get automatic braking in your towed vehicle when you press the brakes in your RV
- Cable pulls towed car's brake pedal smoothly down when the system activates
- System activates only when RV brake lights come on: no false braking
- Adjust braking pressure to suit the weight/size of your vehicle and avoid damage
- Ranges from 5 psi to 80 psi
- Plug-and-play
- System automatically turns on when connected to motorhome
- Components install permanently and discreetly
- Charge your car battery as you flat tow
- Trickle-charges constantly
- Monitor your towed car's braking with LED that installs in RV's dashboard
- Lights up when brakes are activated
- Sounds alarm if the brakes stay on too long (approx. 20 seconds)
- Made in the USA
Specs:
- Compatible with hybrids and other cars with continuous-power-assist brakes
- NOT compatible with vehicles with non-electric hydroboost braking systems
- Actuator box dimensions: 8-3/4" long x 8-3/4" wide x 2-3/4" tall
- Power draw: 6 mA - 10.8 amps
- Maximum braking pressure: 80 psi
- Limited lifetime warranty
Do I Need a Braking System for Flat Towing?
A braking system is a must when towing a vehicle behind your motorhome. Without it, the weight of the towed car can create a safety hazard, strain your RV's brakes, and affect its the warranty of both your car and motorhome. Most states legally require a supplemental braking system, so if you don't use one and you end up in an accident (which is more likely since your RV takes longer to come to a full stop), your insurance and liability headache just doubled. You also won't have any breakaway system; if there's an accidental disconnect, there's nothing to bring your car to a stop.
Pros of a Permanent System
The InvisiBrake is a permanent braking system, which means that it's a one-and-done. Once it's installed, there's no more setup that you have to do. When you plug in the power cord at the front of your vehicle, the system automatically turns on. Just like that, you're ready to flat tow.
While the components are installed permanently in your RV and toad, they remain concealed and inconspicuous. None of them will interfere with normal driving, and most of the time they are invisible.
How Does the Roadmaster InvisiBrake Work?
This system will apply the brakes in your toad (towed vehicle) every time you hit the brakes in your RV. It will detect the brake light signal from your motorhome and trigger the system to the settings you pre-programmed.
Adjustable Pressure Settings
The braking pressure of the InvisiBrake can be adjusted from 5 psi to 80 psi depending on the weight/size of your toad and your preferences. A higher pressure will brake your car with more force - a good fit for a heavy vehicle - and a lower setting is good for a small vehicle. 60 psi is the recommended default setting, but you can tweak it to suit your individual setup.
The adjustable pressure setting is also an important safety feature for a car with active or continuous-power-assist brakes, such as hybrids. A car with active/continuous-power-assist brakes has pressure in the brake lines even when the ignition is off, so a braking system could apply excessive pressure and potentially cause damage. By lowering the setting (20 psi is recommended), you can use the InvisiBrake with active brakes.
The pressure setting needs to be adjusted only once, during the initial installation, at which point you can test the system at different settings to determine which feels best. Once you have it set, it does not have to be readjusted, so your system is always ready to go.
Permanent, Out-of-the-Way Installation
Most often, the InvisiBrake actuator box installs beneath the driver seat of your toad, neatly tucked out of your way. You can, however, install it anywhere in your car that's convenient for you, such as in the trunk, as long as you can still access the adjustment knob.
A bracket and cable pulley will install on the arm of your vehicle's brake pedal. This will not interfere with normal braking function and does not have to be adjusted or removed. There will be lots of wiring to do as well, with connections made to the battery, breakaway switch, and tail lights. But once it's done, your braking system is always ready to go.
This is a tough installation, with several points that need careful precision to get right. Depending on the vehicle, it can be challenging to find a place to fit the actuator box, and you have to be sure the cable pulley will meet the brake pedal at the right angle to function properly. There's a good chance you'll be pulling up carpeting and removing panels to get the wiring and cable run. Check out one of our installation videos to see if this install is in your comfort zone! Otherwise you can take it to a professional to get it installed.
8700 Road Master Invisi-Brake Supplemental Braking System
Installation Details
This Product Fits The Following Vehicles
- 2010 - 2024 Ram 1500
- 2013 - 2018 Ram 1500 with adjustable pedals and with electronic shifter
- 2013 - 2018 Ram 1500 with adjustable pedals and without electronic shifter
- 2013 - 2018 Ram 1500 without adjustable pedals and with electronic shifter
- 2013 - 2018 Ram 1500 without adjustable pedals and without electronic shifter
- 2019 - 2024 Ram 1500 Classic with adjustable pedals and with electronic shifter
- 2019 - 2024 Ram 1500 Classic with adjustable pedals and without electronic shifter
- 2019 - 2024 Ram 1500 Classic without adjustable pedals and with electronic shifter
- 2019 - 2024 Ram 1500 Classic without adjustable pedals and without electronic shifter
- 2010 - 2012 Ram 2500
- 2013 - 2024 Ram 2500 with adjustable pedals
- 2013 - 2024 Ram 2500 without adjustable pedals
- 2010 - 2011 Mazda 3
- 2010 - 2012 Ram 3500
- 2013 - 2024 Ram 3500 with adjustable pedals
- 2013 - 2024 Ram 3500 without adjustable pedals
- 2012 - 2019 Fiat 500
- 2014 - 2016 Fiat 500L
- 2007 - 2019 GMC Acadia
- 2017 - 2017 GMC Acadia Limited
- 1999 - 2022 Hyundai Accent
- 1984 - 2020 Honda Accord
- 2006 - 2006 Honda Accord Hybrid - with rear heater
- 2006 - 2006 Honda Accord Hybrid - without rear heater
- 2006 - 2006 Honda Accord non-Hybrid - with rear heater
- 2006 - 2006 Honda Accord non-Hybrid - without rear heater
- 2007 - 2007 Honda Accord with rear heater
- 2007 - 2007 Honda Accord without rear heater
- 2007 - 2012 Nissan Altima
- 2006 - 2010 Nissan Armada See All Vehicle Fits
Customer Satisfaction Score:
90% were satisfied with this product
10% of customers were not satisfied
- Wrong item was ordered
- Product did not meet expectations
- Too difficult to install
Customer Reviews
Roadmaster InvisiBrake Flat Tow Brake System - Preset - RM-8700
Average Customer Rating: 4.8 out of 5 stars (231 Customer Reviews)
Plug-and-play: this permanent system gets you automatic braking with a one-and-done installation. Actuator box installs out of your way under the front seat. Adjustable pressure setting for comfortable braking. Charges car battery while towing.by: Rick Hyppa04/16/2024
The braking system and the lights are working, one year after I bought them. However, I am towing a 2016 Keep Patriot, and about 2_500 miles after install, the system started making an annoying clicking noise when I enter the Patriot, which stops after about 10 seconds and then starts up again, usually a minute or so later, for another 10 or 15 seconds. etrailer first said that they had never heard of.such a thing, then said that there are otherwise comments for Keep Patriot owners on forums. Still have no.fix.
Also, at first I did not know that to store the tow bar, it must be pulled up so that the post fitting can moe to the position where it fits into the hole.in the smaii yellow bracket, which works well when used correctly. And store the coiled.wide in your tower vehicle.to prevent corrosion which will interfere with its function.
by: David - 2014 Honda CRV02/07/2024
Invisibrake on a 2014 Honda CRV
I’ve been a carpenter all my life and recently finished building a custom car. After Watching the etrailer video (multiple times) it appeared to be a fairly simple installation, not so much, as getting up under the dash is very tight, mounting locations and access points are different and not much working room under dash.
1. It appears the length of the cable and air cylinder are shorter than when the video was made, so an alternate location for the cable clamp is needed. The cable direction needed to be at a 90’ angle to the pedal. . Removing all the carpet and insulation was a PIA to get a direct connection to metal. The cylinder mounted a few inches closer than the video showed and I used two clamps to attach it. The mounting point on the cable clamp ending up being behind the wheel well, so I used a couple of stainless steel bolts for attachment.
2. The hole location into the firewall was very difficult to get to. I was only able to drill a 5/8” hole. I couldn’t get my step bit in there and the brake lines are on the outside and didn’t want to risk damaging them. I just ran the power wires and vacuum line through this hole. I drilled another 3/4” hole in the floor at the back of the cylinder. I ran the plug for brake away and the lighting wires under the body and followed the lighting wires from the back to front. Covering all wires in a plastic loom
3. The plastic molding pieces required some trimming to fit the new wires and cylinder.
4. The video shows the box mounting directly though the removable carpet mat. (Not a good thing) I removed the mat prior to install and will have to modify it to reinstall.
5. All the wiring in the engine compartment and the plug was fairly straight forward and simple.
It all appear to work as it should. Testing seemed to work good.
I recommend making a new installation video.
When I ordered it, the Amazon price was lower and etrailer couldn’t match the pricing. Two weeks later the pricing dropped to match the amazon price ( lower by $150). Sad face..
2014 CRV Baseplate -Roadmaster 521567-5
The installation was fairly simple and the video explained it well. The bumper and grille were fairly difficult to remove and expect to break some of the clips. ( new yellow ones can be purchased on Amazon) . I would wait to replace the grille until all the plug wiring is complete. Just hind site.
2014 Honda CRV Brake switch relay. -Roadmaster 88400
Relay switch are really simple to install, but the location of the brake switch and the small wires made it really difficult.
But it works as it should
by: George C06/12/2023
This product was supposed to fit under the seat of my 2022 Chevrolet Colorado. It doesn't even come close. The power seat motors do not allow any room between the seat and the floorboard of the cab. I am returning it "Unused, Uninstalled and in the original packaging. I am being charged return shipping fees. I could understand if I just changed my mind but the product DOES NOT FIT!!! I ordered a replacement air brake unit that will fit. Why am I being charged return shipping for etrailer's mistake in compatability??
by: Triplewide12/31/2015
2016 Jeep Grand Cherokee
Good quality materials.
Fast delivery
Good price.
Complicated install. 16 hours labor for me to install toad portion, including bulb kit. 8 hours to install indicator light/warning beeper in RV. Worth the one time effort for me to not have to set and remove floor mounted brake system each time I want to drive the toad.
2002 Jeep Grand Cherokee with electric drivers seat. Controller would not fit under drivers seat, installed in cargo area behind rear seat. Good instructions for install.
Kit included everything I needed. Due to controller placement, the controller power leads were not long enough. Air line to air cylinder connection was difficult to get right. Was not as "sure" as air line to controller. Took 3 attempts to get it to not leak.
Overall a good product, I expect it will last a long time and be very reliable.
by: Russell06/01/2022
A little more difficult than others to install but definitely worth the money. The only thing I noticed is every couple of hookup’s you need to pump the brakes once to activate the system
Russell
6/3/2023
Works great however if there’s a short anywhere in the primary vehicles light wiring. It will randomly apply the brakes.
by: Charles 11/23/2023
I've always have a Invisibrake system installed on my tow vehicle as they work excellently and are not in the way.
by: Marty10/05/2023
I love the InvisiBrake system! It's permanent installation and flawless operation really simplifies the process of connecting and disconnecting the towed vehicle. I would definitely buy it again and recommend it without hesitation.
by: Brent10/12/2023
My Invisibrake system works excellent. I t was easy to install for anyone with a little mecanical ability. Love it
by: Dennis10/12/2022
Intermittent brake application sticking on. 3 different times in 4000 miles but always seems to fix itself.
Dennis
10/13/2023
Still occasional compressor sticking on. Times out eventually after annoying buzzer alarm.
Jenny N.
11/7/2023
@Dennis I reached out to Roadmaster and it could be a feedback issue from possible water and or corrosion especially if this is only happening when the RV and flat-towed vehicle are connected with the power cord. The best way would be to reach out to Roadmaster so that they can confirm the situation and components that are in play to better know what way they can help. I will email you the contact details.
by: Kreg07/13/2023
Not using it anymore because the Ford Maverick we got it for, was upgraded to a Ford Ranger. It did not supply enough power to charge the battery. The charging option was one of the main reasons we bought this one. I think it is different for other cars. It was a little challenging to adjust the brake power. We switched to a portable solution for the Ranger.
by: Michael 01/20/2024
Etrailer was Awesome from start to finish. Vert efficient and made sure that i had everything I needed.
by: Steve08/18/2022
The installation went as planned. All parts fit and worked the first time.
by: Earl 04/20/2023
2018 Jeep Wrangler
Realitively easy to install except for the brake indicator in the RV. The problem was in the 2018 Wrangler, getting the wire I needed ti splice int for the in-use indicator.
by: Ken K.08/28/2017
2015 Jeep Wrangler Unlimited
The product arrived within a reasonable amount of time. Instruction for installation was pretty good between both what came with the kit and the video etrailer web site. For the most part the installation went well but there are a few things I would like to comment on, and they are:
1) The self tapping screws to install the control unit to the floor of my towed vehicle were too short to get through the carpeting and into the sheet metal with enough bite to hold. Instead I used longer 1/4 - 20 bolts.
2) The vacuum check valve came apart while I was pushing it into the brake vacuum line. I was able to not lose the rubber membrane inside and used super glue to put it back together. I tested it and is working fine but I did order another check valve to the tune of [a few extra] more dollars.
3) It would have been nice to have the etrailer video show something on where to hook up the "Monitor System" from the towed vehicle. It took some doing but I was able to locate the brake switch and tap into the cold side for the signal.
Although I haven't put any miles on this system yet my test of it went well.
Rachael H.
9/1/2017
Thanks for the feedback and review Ken. I wanted to let you know that I have included a link to one of our installation videos and at about the 15 minute mark there are some details about installing the monitoring system in the RV.
Helpful Links
Ken K.
9/1/2018
A year later and Im still in love with the Roadmaster tow bar & base plate and InvisiBrake braking system. We just got back from a road trip that started around Seattle down to Bryce canyon and back. The tow bar and brake system worked flawlessly, I could not be more pleased. Also, recently I traded in the first Jeep that I installed this system on for a newer Jeep. Knowing that I would be towing the new Jeep as well, I wanted to uninstall the base plate and brake system from my old Jeep and reinstall them on the new. The process went very well, actually faster than the first time I installed it. So, bottom line is that Im very pleased with this set up and would recommend it highly.
by: Chuck11/05/2022
Purchased this braking system and installed on 2005 Jeep Wrangler and towed for over 3000 miles with no issue. Uninstalled and reinstalled on a 2016 Jeep Wrangler this fall. By far, the best supplemental braking system we’ve ever used.
by: G.D.08/23/2015
2014 Honda CR-V
Installed in a 2014 CRV. Worst part was getting all the wiring and under the door sill trim panel and routed up through the firewall into the engine compartment, and getting the cable and pulley installed up to the brake pedal. Pretty crowded under the dash in a CRV (my ribs are still sore)! had to use a different clamp on the vacuum cylinder because I had to move it forward of where the video showed in order for the cable to reach the mounting location under the dash. Had to clamp it around the larger end of the cylinder and the supplied clamp would not fit around the larger diameter end. Maybe Roadmaster has shortened the cable? Haven't tested yet but have high hopes! I used the videos extensively, and couldn't have done it myself without them! Not bad for a 72 year old!
G.d.
8/23/2016
Excellent! Have used it towing my CRV on two 2,ooo mile trips since installation. Works very well
by: Douglas 01/09/2023
delivered early and packaged as stated
Douglas
1/10/2024
No issues and everything works fine.
by: Michael04/13/2024
works perfect
by: Scott09/27/2022
2021 Ford Ranger. The installation is not really technically challenging, but there are a lot of steps and you need to twist yourself under the dash for quite a bit of it. The main installation comment I would have is assume you are going to drill a hole in the firewall for the wires/air hose. Using the existing grommets is more work/risk than it is worth. There were several videos, but none specifically for my vehicle and I would have liked the specific detail on the air connection. We have about 800 miles towing with it so far and it definitely it helps with stopping, plus the break-away safety is good peace of mind.
by: Edwin 01/27/2023
Works great after I finally got it installed (see review on wiring harness)
by: Gary01/30/2020
Jeep
Nice product and simple to install should be easy to use. I installed under the seat of my 99 jeep wrangler
by: Guy08/09/2019
This review is more for eTrailer than the product RM-8700, which is a great product as well. I will be submitting further reviews as I install the device.
If you want to work with a knowledgeable staff, one that actually listens to your needs and not a company that simply sells a product just to get numbers. Deal with eTrailer.
If your RV has any need these guys know or will find out (as long as its in their area of expertise) and get back to you. They carry great products, they ship as promised and they stand behind what they sell. I highly recommend eTrailer.
Guy V.
8/10/2020
Most excellent products and customer service. I had purchased a few different items from eTrailer and found that there were a couple of missing items. Without question or hesitation, they were in shipping and satisfying my problem. After I got into the project, I found the missing items and notified eTrailer of my error. I cannot say enough good things which describes the excellent customer service, product knowledge and assistance they offer their customers and potential customers.
by: Darrin03/03/2024
Easy install
by: Boyd10/03/2022
Happy so far. I wouldn’t say installation is difficult but it did take me some time. Unit just barely fits under the drivers seat of my ‘03 TJ so it is out of the way. Does take away leg room from the rear passenger but who rides in the back of a TJ right? I did have to fab up some spacers for the clip that holds the brake cable due to the fact that the firewall of my TJ has a ridge right where it needed to be mounted.
by: Doug S.04/20/2019
2016 Jeep Wrangler Unlimited
It was not too difficult to install if you have basic mechanical and electrical knowledge. After a year owning it and using, I can while heartedly say this is an EXCELLENT PRODUCT. I never had a breakaway to really test it, thank God, but the peace of mind knowing it’s there is tremendous!
Doug S.
4/21/2020
Perfect operation still to this day!
25
231
Show More Reviews
See what our Experts say about this Roadmaster Tow Bar Braking Systems
- Will the Roadmaster InvisiBrake Release Air Pressure Over Time When Disconnected from MotorhomeThe air pressure in the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 will slowly release the pressure until it is down to zero when you disconnect your 2017 Ford Focus from your motorhome. It won't drop all of the sudden once disconnected. I reached out to my contact at Roadmaster who confirmed this.
view full answer... - Is The Roadmaster InvisiBrake Supplemental Braking System Compatible With 2005 Jeep Liberty Diesel? Yes, the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 will work on your 2005 Jeep Liberty having the diesel motor. I do see your Liberty does still use a vacuum boosted brake system like the other Liberty engines so you will get full braking on your Liberty.
view full answer... - Troubleshooting Battery Drain With A Roadmaster Invisibrake When Idle Hi Brenda, The Invisibrake # RM-8700 will have a tiny pull on the battery, but shouldn't pull enough of a charge to drain it when in idle mode. This leads me to believe it was either installed incorrectly or that you might have an issue with the breakaway switch. If the breakaway switch is faulty the unit could be trying to activate the brakes even though it's just sitting there. I would pull the plunger out of the breakaway switch and then place it back in, making sure it's fully in...
view full answer... - How Does the Roadmaster Invisibrake Shut Off The Roadmaster Invsibrake part # RM-8700 is designed to activate the towed vehicle brakes when the motorhome sends a signal back to the operating unit to brake. Once the towed vehicle is disconnected from the motorhome, the Invsibrake shuts off and no longer activates. This is one of the only supplemental braking systems that does not require turning the system off compared to other supplemental braking systems that need to be turned off or taken out of the vehicle each time you want...
view full answer... - Where Does Roadmaster Invisibrake Vacuum Line Tee Attach on 2018 Ford F-150 EcoBoostWe actually had the chance to install the Roadmaster Invisibrake # RM-8700 on a 2018 Ford F-150 EcoBoost just like yours and we installed the tee of the kit on the vacuum line closer to the intake manifold. If you fast forward to the 9:20 mark of the install video link I attached on this page our installer will walk you through exactly how to do this.
view full answer...
- Roadmaster InvisiBrake Won't Release Brakes on 2018 Jeep CherokeeI reached out to the manufacturer, Roadmaster, in regards to the issues you are having with the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 on your 2018 Jeep Cherokee. What they told me was that "it sounds like whoever did the install forgot to add silicone to the back of the six-way socket for weather proofing. I would ask the customer if it has recently rained or if they took their vehicle through a car wash. If so they will need to empty the water from the backside...
view full answer... - Installing The Roadmaster Invisbrake On A 2021 Ford Escape HybridYour 2021 Ford Escape Hybrid does not have a vacuum assisted braking system so you will be able to skip the vacuum line step when installing the Roadmaster InvisiBrake Supplemental Braking System # RM-8700.
view full answer... - Does Roadmaster InvisiBrake Braking System for Flat Towed Vehicles RM-8700 Trickle Charge BatteryIt sure does. When the RV running lights are turned on, the InvisiBrake will deliver a trickle charge to the battery of the towed vehicle. I've linked you to the installation instructions for the Roadmaster InvisiBrake. If you go to the product page for the InvisiBrake by clicking on the provided link, you can see several installation videos we've done. The install procedure can vary a bit from vehicle to vehicle, but the videos will give you a good idea of the overall process.
view full answer... - No Audible Alert in RV after Depressed Brake Pedal on Roadmaster InvisiBrakeI called my technical support contact at Roadmaster and they informed me that it is likely that you have just switched the wires that go to both the LED monitor and audio board on the Roadmaster InvisiBrake Supplemental Braking System part # RM-8700. I would first try to switch the wires to see if that fixes your problem. If that doesn't work then you will want to inch forward a bit and hold the brake pedal to see if the alarm sounds. If neither of these options work then you would need...
view full answer...
- Troubleshooting Invisi Brake From Roadmaster Where Compressor Does Not Come OnIn the installation instructions for the Roadmaster BrakeMaster # RM-8700 there are two fuses wired to the air compressor circuit. One 20 amp fuse on the power wire of the battery, and a 10 amp fuse connected on the blue wire that runs from the ignition switch to the air compressor. Inspect these fuses and any poor or loose wiring connections. Try using a jumper wire 12-volt source to connect to the compressor to see if it operates. If the compressor works, then the issue is along the...
view full answer...
- Do all of the Wires of the Invisi-Brake Need to Be Wired to Install Brake KitEven though you already have a charge wire ran from your RV to your vehicle batter you would still want to run all of the wires to install the part # RM-8700 on your truck. To determine if a brake light relay # RM-88400 is needed to properly wire your vehicle to be towed, answer the following questions. Are you using a supplemental braking system that depresses the brake pedal in your towed car? No - You do not need a brake light relay. Yes - You may need a brake light relay. Continue...
view full answer... - Towed Ford Explorer Battery is Dead After A few Hours of Flat Towing Behind Itasca MotorhomeThe Roadmaster InvisiBrake Supplemental Tow Bar Braking System # RM-8700 is designed to deliver a trickle charge from your running motorhome's electrical system to your toad's battery while you're underway. This power feed is dependent on good ground connections between both the motorhome and InvisiBrake, and between the InvisiBrake and the toad. You can check to make sure all electrical connections are sound and that there is no corrosion on connectors that might be impeding the charging...
view full answer... - Operation of Roadmaster InvisiBrake Supplemental Braking SystemThe Roadmaster InvisiBrake Supplemental Braking System, # RM-8700, has a controller that is vacuum-operated. It will send pressure to the air cylinder and the air cylinder will apply pressure to the brake system by pulling on the attached cable. Please note the attached product review and installation video.
view full answer... - Do I Need To Uninstall Diodes When Uninstalling The Roadmaster InvisiBrake System?Hey Fred, good question. When uninstalling the Roadmaster InvisiBrake system, you do not need to remove the diodes. You certainly can remove them if you wish but leaving them in place is also acceptable. All they are doing is preventing current from flowing in more than one direction. So if you were to leave them in place, you would not notice any effects of any kind. Generally, we would not re-use a diode after it has been installed, so it will probably be easier and faster to just leave...
view full answer... - Will Roadmaster InvisiBrake Braking System Fit Under Passenger Seat on a 2013 Jeep WranglerThe ideal location for the controller box of the InvisiBrake, # RM-8700, is under the drivers or passengers seat. However, it can be mounted anywhere in the interior of the vehicle; under the rear seats, in the trunk, or behind panels. I have included a link to the instructions to the right. Based on those you should be able to determine that best mounting location for you. I have also linked a couple of installation videos for you.
view full answer... - What Might Cause Roadmaster Invisi Brake to Prevent Vehicle Brakes from WorkingThe most likely reason the install of an Invisi-Brake part # RM-8700 would interfere with the braking of a towed vehicle is an issue with the way the system integrates with the vacuum lines of the vehicle. It's possible the T-fitting adapter that ties into the main vacuum line for the power assist has disconnected. That would be the first place I would check. Is there a loud "air suction" sound that you can hear when the vehicle is running? That would be a dead giveaway for that. It's...
view full answer... - Monitor Light Comes on Without Brakes Depressed on Roadmaster InvisiBrake Braking SystemIf you're referring to the monitor light on the Roadmaster InvisiBrake Supplemental Braking System Roadmaster part # RM-8700, you can reference the owner's manual for troubleshooting tips. I did this for you and found the following under false monitor light illumination: - Readjust the brake pedal clamp. - The cable is bound or obstructed. Inspect the cable assembly from the brake pedal to the cable anchor bracket. - Incorrect cable adjustment, refer to the installation instructions for...
view full answer... - Troubleshooting A Roadmaster InvisiBrake Compressor That Continuously RunsIn the installation instructions for the Roadmaster BrakeMaster # RM-8700 there are two fuses wired to the air compressor circuit. One 20 amp fuse on the power wire of the battery, and a 10 amp fuse connected on the blue wire that runs from the ignition switch to the air compressor. I've included a wiring diagram to help you check these fuses and ensure they are in working order. As for the compressor continuously running, this could be an indication that the breakaway switch has an issue....
view full answer... - Items Needed When Towing A Ford F-250 With Another Ford F-250The proportional brake controller you have in your Ford F-250 is intended to be used when towing a trailer, and is not designed to work to control brakes on a towed vehicle. I have attached a link to a helpful article that explains brake controllers you can check out. If you are planning on flat-towing a vehicle it requires 5 things. Those are base plates on the towed vehicle, a tow bar to attach between the towing and towed vehicle, safety cables, lighting on the towed vehicle, and now...
view full answer... - Tip for Cutting Vacuum Line of 2020 Jeep Gladiator to Install Supplemental BrakingI'd use a pipe cutter. Pipe cutters will make quick work of the harder vacuum line and won't damage the overall shape of the lines either. Pipe cutters can be found at local hardware stores.
view full answer... - How To Install The Monitor Wire For The Roadmaster Invisibrake Supplemental Braking System The Roadmaster InvisiBrake Supplemental Braking System # RM-8700 monitor wire comes with "bullet" style connectors. The monitor wire will not connect to the brake light switch wire on your motorhome. It simply runs up to your dash for the light. On the vehicle side you'll tap into the brake light switch wire and then run it to the grill of your ram and connect to the motorhome side using the bullet connectors. If you have an empty terminal on your 6-pole and 7-pole sockets on your Ram...
view full answer...
- How To Wire In The Monitor Light For The Roadmaster InvisiBrake Supplemental Braking System The monitor light for the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 would need to be grounded to the chassis of the motorhome. The LED light and audio signal will both have a wire to run down to the chassis and another wire to run over to the towed vehicle to connect to the cold side of the brake light switch. To accomplish this you'll most likely need to extend to wire to run it down to the chassis and then use a ring terminal and self tapping screw to connect the wires...
view full answer...
- Will Trailer Brake Controller Interfere with Roadmaster InvisiBrake Supplemental Braking SystemThe trailer brake controller in the cab of the motorhome won't interfere with the Roadmaster InvisiBrake Supplemental Braking System part # RM-8700. They are two completely separate systems which do not interact with one another. The trailer brake controller controls electric brakes and the supplemental braking system controls hydraulic brakes.
view full answer...
Do you have a question about this Tow Bar Braking System?
Used Items Available
Condition: Like New
Notes: May have damaged packaging or minor cosmetic blemishes.
Info for this part was:
Test Fit:
Joe V
Test Fit:
Nicholas E
Test Fit:
Rick A
Test Fit:
Shane T
Test Fit:
Randy B
Test Fit:
Andrew S
Test Fit:
Brent H
Test Fit:
Shane H
Test Fit:
Robert C
Test Fit:
Conner L
Test Fit:
David F
Test Fit:
Ryan G
Test Fit:
Clayton O
Test Fit:
Bradley B
Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Expert Research:
Jeffrey L
Expert Research:
Victoria B
Video Edited:
Zack K
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Andrew L
Video Edited:
Kathleen M
Video Edited:
Dustin K
Video Edited:
Sue W
Video Edited:
Chris R
Video Edited:
Zach D
Video Edited:
Jonathan Y
Video by:
Andrew K
Video by:
Patrick B
Video by:
Alan C
Video by:
Michael B
Video by:
Thomas T
Video by:
Schuyler H
Written by:
Lindsey S
Updated by:
Adele M
Updated by:
Laura H
Updated by:
Wilson B
Updated by:
Jenny M
Updated by:
Hannah L
Updated by:
Mike S
Updated by:
Isabelle B
Updated by:
Amanda K
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Product Experts Available Now!
Call 1-800-940-8924
Jenny N.
6/14/2023
You are welcome to return this InvisiBrake system however I wanted to let you know that while most of the time the InvisiBrake actuator box installs beneath the front seat of the towed car it does not have to be installed there. It can be installed anywhere in the towed car that is convenient as on as you can still access the adjustment knob.