bing tracking image
  1. Tow Bar Braking Systems
  2. Ram
  3. 3500
  4. 2021
  5. Demco
FITS 2021 Ram 3500
Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional

Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional

Item # SM99251
Retail:$1,668.98
Our Price: $1,175.00
You Save: $493.98
Tow Bar Braking Systems
Confirmed to Fit
2021 Ram 3500

with adjustable pedals

without adjustable pedals

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

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.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
Call etrailer.com at 1-800-940-8924 for expert service. We are your Ram tow bar braking systems experts, and offer a great price. etrailer.com carries a complete line of Demco products for your Ram 3500 2021. Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional part SM99251 from Demco can be ordered online at etrailer.com. Complete tow bar braking systems installation instructions and technical support.
  • All Info
  • Reviews (593)
  • Q & A (0)
  • Photos

2021 Ram 3500 - Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional

  • Proportional System
  • Hydraulic Brakes
  • Brake Systems
  • Fixed System
  • Demco
  • One Time Set-Up
  • Power Assist Brake Compatible

Plug in and go: this permanent system gets you smooth, reliable braking with a one-and-done installation. Low-profile components designed to stay out of sight.


Features:

  • Guarantees smooth, reliable braking
    • Reads RV's brake light signal to ensure system only activates when you actually hit the brakes
    • Senses the rate of your RV's deceleration and triggers your towed car's brakes to slow down at the same rate
    • Lets you adjust braking sensitivity to suit your vehicle and your preference
  • Plug-and-play
    • System automatically turns on when your towed car is connected to the RV
    • Components install permanently and stay tucked out of sight
  • Monitors your towed car's braking with LED indicator on car's dash
    • Lights up when the brakes are applied
  • Avoids damage from over-braking by reactivating car's vacuum-assisted braking
  • Includes breakaway system and all necessary components
  • Made in the USA


Specs:

  • Application: motorhomes with hydraulic brakes
  • Compatible with hybrids and other cars with continuous-power-assist brakes
  • Operating unit dimensions: 8" long x 5" wide x 2-1/4" tall
  • 5-Year warranty


stay n play duo review

"This is the top system I recommend if you have hydraulic brakes. Quality, reliable, tried-and-true. It just always works."


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 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 Stay-IN-Play Duo 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. Flip the on switch for the G-Force controller and 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. And you don't have to find a place to store them between trips.


How Does the Demco Stay-IN-Play Duo Work?

The Stay-IN-Play Duo is unique in that it uses both an inertia sensor and your motorhome's brake light signal to activate. Having this double-check ensures that the system will only activate when it's truly needed.


Demco Stay n Play Duo operating unit

First, the Duo monitors your motorhome's brake light signal so that it knows when you're intentionally hitting the brakes. This ensures there's no false braking.


Second, the inertia sensor in the Duo senses the change in momentum of your toad (towed vehicle) as your setup slows down. It precisely measures this change so it can activate your toad's brakes to match the rate of the RV's deceleration; this is what makes it proportional. When you apply the brakes in your motorhome, the braking system will engage the brakes of the toad at the same time with the same amount of force. This keeps the RV and the toad in sync with each other, so whether it's a gradual slow down to a red light or a hard stop in an emergency, the toad and the RV will brake together.


Demco G Force Controller

It starts with the G-Force controller. The G-Force controller contains the inertia sensor that senses the change in your RV's momentum. You'll install it in the cab of your toad, underneath the dashboard. This keeps it out of the way but easy to reach so you can flip the toggle and adjust the knob.


Note: The G-Force controller must be pointed in the direction of travel - with the toggle switch facing the driver's seat - for the internal sensor to function properly.


The controller lets you adjust the sensitivity of the inertia sensor to determine how drastic the change in momentum must be for the system to trigger. Set the sensitivity low and the Duo will only engage when you forcibly step on your motorhome's brake pedal. Set it high and a mere tap on the brakes will get a reaction. It's totally up to you how sensitive you want it to be; a heavier vehicle will probably need more sensitivity, while a lighter one doesn't need to brake so hard. The knob on the face of the controller lets you easily program your setting.


Demco Stay n Play Duo operating unit

When the G-Force controller detects a change in inertia, it checks that there's a brake light signal from the RV to confirm that it is indeed braking. It then sends a signal to the main operating unit to activate; the main unit delivers pressurized air through an air line to the actuating cylinder that attaches to your toad's brake pedal. The cylinder will pull the pedal down, applying your brakes almost instantaneously.


Demco Stay n Play Duo cylinder mounted on the brake pedal

The actuating cylinder attaches permanently to the arm of your toad's brake pedal. Though it is permanent, it should not interfere with your everyday driving. In most vehicles, it is tucked up where you can't even see it.


Vacuum Pressure Creates Smooth Braking

When you're driving, your vehicle uses vacuum pressure to create the force needed to bring the car to a stop. On most vehicles, this vacuum-assist function does not work when the engine is off. As a result, a lot of supplemental braking systems have to use an excessive amount of pressure while braking the toad.


The Duo, on the other hand, reactivates the vacuum-assist function by tying into your car's vacuum line. Your car will brake evenly and naturally as it's being towed, so there's less risk of damage.


Built-In Safety Features

Demco braking monitor

Included with the Duo is an LED indicator light for safety and peace of mind. This LED, mounted in the toad (on the dash or on the back of the rearview mirror) and visible in your RV's backup camera, will light up whenever your toad is actively braking. It's a simple way to keep tabs on whether the system is working properly or if something is going wrong.


Most supplemental braking systems have a method of letting you know you when they activate, but not all of them are checking if the toad is actually braking. There could be an error that causes the system to activate without actually applying the toad's brakes. Or your brake pedal might actually be continuously depressed when it shouldn't be. But unless you have a system that's monitoring your vehicle, you won't know it until the damage is already done.


This braking monitor connects directly to your toad's brake light switch so it only lights up when the pedal is depressed and a signal is sent to the brake lights.


If there's a strong glare on your toad's windshield, the LED light strip might be hard to see. The wireless Coachlink system (SM99945 - sold separately) is a great solution to this problem; the monitor mounts right on your motorhome's dashboard so it's directly in view. This is a great add-on for convenience and peace of mind.


Demco break away switch

The Duo also comes with a breakaway switch, an absolute must for safe flat towing. If there's ever an emergency situation where your toad becomes detached from the motorhome, the breakaway switch will immediately activate the brakes and bring the vehicle to a stop.


This switch mounts to the front of your toad and wires into the Duo's operating unit. It includes a pin that connects to your RV's hitch receiver with a breakaway cable. If the toad and RV become disconnected, the cable will pull the pin out of the switch and trigger the braking system. A reserve air supply in the operating unit will then apply the brakes in the car.


What You Need to Flat Tow

Flat towing can be a much more convenient way to take your car RVing with you than using a trailer or a tow dolly. It'll save you storage space both at home and at the campsite, and it takes less time and hassle to hook up.


To flat tow your vehicle, there are 5 basic components you're going to need: a tow bar, a base plate kit, a safety cable set, tow bar wiring, and a flat tow braking system.


For the RV Between the RV and Towed Car For the Towed Car
Hitch Tow bar Base plate
Wiring plug Safety cables Braking system
Wiring adapter cord Wiring kit/diodes

The custom-fit base plate installs on the frame of your toad so you can connect the car to your RV with a tow bar. Hook up safety cables between the vehicles to ensure that the toad does not separate from the motorhome if the tow bar becomes detached. Tow bar wiring syncs your vehicle's signal lights with your motorhome's tail lights, as required by law in most states. Finally, the flat tow braking system - also required in most states - activates the brakes in the toad when you hit the brakes in the RV, making for smoother, safer braking, and preventing wear on your motorhome.



9599006 Demco SBS - (Formerly SMI) Stay and Play DUO Supplemental Braking System for Motorhomes with Hydraulic Brakes - Proportional

Replaces Demco SBS SM99251

DM9599006

Installation Details SM99251 Installation instructions

Customer Satisfaction Score:


Customer Reviews

Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional - SM99251

Average Customer Rating:  4.8 out of 5 stars   (592 Customer Reviews)

Plug in and go: this permanent system gets you smooth, reliable braking with a one-and-done installation. Low-profile components designed to stay out of sight.

by:
2017 Chevrolet Spark

I mounted this in a 2014 Chevy Spark. Finding a spot for the main control unit was interesting, but I found a video for a 2017 Spark that I could use. I did have to drill an extra hole in the mounting flange and car. I haven't taken it on a trip as of this time, but a tow around the block indicated it was working. One note, watch about placing the LED indicator behind the tinted part of the toad window. It makes it harder to see from the camper camera.

Dale

4/17/2024

We are very pleased with this system. We hauled the Spark on a 5,000+ mile trip out west and the brake system did its job. I did tweak the setting a couple of times to get it as I liked it. As noted in my initial post, I still have trouble seeing the LED indicator behind the tint if the windshield, especially in bright sunlight.



by:

I installed the Stay n play on a 2017 Jeep Cherokee Trailhawk. I pull it with a Diesel Sprinter, and braking control is very important to me. Previously I used a Brake Buddy. The Demco system is a world of difference. The proportional braking, simplicity of design, ease of engagement/disengagement, and reliability have provided an improved sense of confidence and security when flat towing. Installation was a challenge but is well described in instructions and videos.



by:
2020 Ford Escape

It seems to be working just fine, as advertised. I don't have anything to compare it to, but it's slowing the dinghy when I apply the motorhome brakes. I was glad I had it installed by one of etrailer's authorized installers, because it looked pretty complicated to me. As I understand, they phoned e-trailer for help and were pleased with the that service. They took a week total, installing all five items I purchased from etrailer. The pieces are nicely "hidden" from view. I also received quick service from etrailer when I asked about competing brands, and Jameson suggested this one.



by:
2012 Chevrolet Volt

I had my local Cadillac dealer install the braking system in my Mini and it was done perfectly. Now I just flip a switch and the braking system is activated. I did have them hook up an extra wire on the RV harness. They ran the center 12 volt source to the Mini battery. That way, the system doesn't drain the battery on long hauls. An interesting side note: the system takes an extra half second to release the brake pressure to the car after my RV brake pedal is released. Therefore, if the pressure is set too high, you feel the car putting significant drag on the RV. This really helped to setup the system initially and is a daily reminder that the system is working as a little bit of drag for a half second is normal.



by:
2020 Ram ProMaster 3500

Installing on 2020 Jeep Trailhawk :



Pic #0557 : Roadmaster Base Plate Kit , Demco Supplemental Braking System , Diode Wiring Kit , Demco Battery Charge Wire Kit



Pic # 0548 ,0551 , 0559 Had to adjust the bracket plate to line up with the upper bolt holes



Pic #6028 finished install , mounted the operating unit to the top fuse box cover using automotive Velcro . Air cylinder , controller and LED light installed . Aside from the base plate bracket not lining up with the upper bolt holes I would give it 4 stars . My son in law is a master at solving mechanical issues .



by:
2005 Jeep Liberty

I'm very pleased with this Stay-in-Play /DUO Braking System which I installed on my 2005 Jeep Liberty. I debated wheather I dared install it myself, but with the video instructions I decided that I could. I watched the video a couple of times, then followed it step by step during the installation, and it went pretty smoothly. One issue I had is that they changed the instalation of the LED indecator light, since the making of the video, so the parts did not come as described on the video. I do prefer the new method, as described in the installation manual, but it does require a toggle switch to turn it off. I installed one just below the Control Unit inside the car (see photo). I was also very impressed since, right after ordering the system, I found it for less on another web site. I emailed eTrailer about my disappointing discovery, and they credited me back the difference. GREAT COMPANY!

Robert P.

12/9/2019

One year later, the system is still working great. Still very pleased.



by:
2016 Ford Edge

Thanks to installation videos provided by etrailer, I felt confident that I could do the install myself. I had never pulled off moldings and panels in a car before, but with your videos as guidance , it was a breeze. This system was going into a 2016 Ford Edge 3.5L AWD and your (and SMI's) instructions call for installation of 2 check valves. After calling SMI to clarify the install points, it got even easier, as only one valve is required, and is ridiculously simple to install it. No cutting of original car hoses required (see photo). After everything was installed, the whole setup just simply worked, no troubleshooting required. That was fun and it is totally doable, even for the average guy like myself.

Herbert M.

7/13/2018

The rear-view camera display in my RV is not good enough to show the operation of the brake notification LED which is applied to the rear-view mirror in the towed car. I installed a small light in the RV dash and ran wiring all the way back to the toad, with a disconnect plug at the hitch, of course. Now it is easy to see when the car brakes come on. Else, the system works great.



by:
2014 Smart fortwo

Product rec'd on time. Very good quality and works fine. Installation instructions were great.

Diana G.

4/27/2024

The Demco braking system has been working flawlessly on our little Smart car. Very satisfied.



by:

The Demco stay-n-play braking system has worked flawlessly for a full season of towing! The one time installation went smoothly and all components fit and functioned perfectly.
Very easy to use, connect to tow vehicle, flip a switch, and it's ready to tow. Disconnect from tow vehicle, flip a switch, it's ready for normal driving.
Would highly recommend this setup over other braking systems.



by:

Haven't actually had the chance to tow behind yet so this is just for the install. It took me quite a long time to install but, that's not the products fault. Everything you need to do the job is included.
I only give it 4 stars because the system uses the towed vehicles battery to activate the vacuum/compressor pump, so it would be possible to run the battery down as there is no charge circuit from the towing vehicle. I did choose to add one though. Other than that I'm sure it'll work fine. It was installed on a 1983 Vanagon.

David

10/21/2021

Im not in the car when it works, but the indicator light comes on so I assume they work. Honestly, my motorhome is so big I cant tell if there working or not, mostly I stalled to be legal and safe. I like it.



by:

Installed on a 2013 Nissan Frontier. Works great but I had a hard time finding someone to install it. I tried my regular mechanic and an two others. They did not not want the liability? The Demco site lead me to an RV service shop that did a great job. They hide the wire from the brake indicator mounted on the rear view mirror by routing it through the trim so it just stays plugged in (one less thing to do when hooking up). They also added a battery charging line from the motor home to keep the Frontier's battery from getting too low from exercising the brake on long trips.



by:

It took more time initially to install than some other products. However, every time I use it, the ease of use makes the time it took to install it well worth it. Take some extra time once; or take some extra time every time.



by:
2003 Subaru Outback Wagon

I chose to go with this unit because I didn't like the idea of the other types that mash the brake pedal without any vacuum assist & the fact that you have to remove, then reinstall them each time you want to use the car.
This ended up TOUGH install. Not because of the unit, but rather the lack of ANY room under the hood on my 2003 Subaru Outback Wagon to mount the operating unit. The only place I could find that would be out of the way was under the driver's seat of all places! Luckily there was JUST enough hose with the unit to reach all the way to the brake booster. I had to cut the carpeting so the seat would clear the operating unit during movement without any chance of contact. There was no hole in the firewall large enough to accommodate the hose so I had to drill a hole for that although I was able to route the wiring through a small rubber grommet. Routing the hose to the firewall was a real challenge! I ended up running it through the heater duct under the driver's floor mat to the left side kick panel, then up over the pedals keeping clear of any moving parts. WHEW!!
The brake pedal actuator went on without much fuss, although with my large feet I have noticed I'll catch the actuator with my toe on occasion. I may mark the location it's in now & merely raise it up a tab in between trips.
The wiring was pretty much straight forward, there was plenty of included wire & I had JUST enough room tho mount the G-Force Controller on the left kick panel covering without interfering with my feet.
The breakaway switch I fastened to the body in front & below the radiator.
I read where everyone was saying you need to have a battery cut-off device to keep the braking system from draining the battery over time, but I had power from the RV keeping the battery fresh so I didn't worry about that & saved myself the $180 for the cost of an automatic battery disconnect.
After installation, I sat in the car while we towed it around the neighborhood to see how it worked & made the necessary adjustments to the G-Force Controller. Now THAT was weird! What with the car steering itself & braking too.
We just got back from a 4,000+ mile trip & everything worked fine. On occasion I forgot to flip the switch to turn the system off, but it didn't seem to make much of a difference.
All in all a great system!



by:
2014 Honda CR-V

After watching the excellent installation video I had very little trouble installing this product. I like the fact that it is a stay-in-play system that literally requires only the flip of a switch to activate. The major components are all installed out of the way, yet are still easily accessible. As for the braking system itself, I find it operationally excellent and believe this product choice was a great one.



by:

It wasn't easy to get everything installed in a way that looked neat and professional but in the end the ease with which you can hook up the car and start towing makes it worth it. I bought a replacement factory vacuum pump line so that I didn't have to worry about ruining the original one and as a result the installation looks that much better. Literally all I have to do is flip a switch once the car is connected and I'm ready to go. Given a second opportunity to do the installation I would mount the LED light strip vertically on the backside of the rear view mirror to make it a bit more visible but other than that, I'm happy with how it turned out and the system works great.



by:
2020 Jeep Wrangler

Absolutely great product and worth the time and effort to install. Once installed and "adjusted correctly" this unit is flawless. I installed it with everything else from ETrailer in 3 days, taking my time and I have a very clean installation. Once installed the tech support guided my "sensitivity" level for the perfect application. Also their TECH support was on it both times I called. The other was in ref to a brake light switch sold by etrailer but was not needed for this and they provided the intel off the top of his head. Absolutely recommend this product and both DUO and Etrailer as companies.



by:

I personally installed this on my 2020 Jeep Wrangler and have towed it using this braking system over 4K miles and have had zero issues. Would definitely recommend! The installation instructions were well written and included an easy to read wiring diagram making is easy to install and the very knowledgeable etrailer support was a bonus too!



by:
2018 Jeep Wrangler

After doing much research and reading many reviews and watching a lot of your instructional videos I chose the Stay-in-Play Duo. It came complete with instructions and extra parts for any application. I like the fact that after everything is installed it is just a matter of flipping a switch and checking it out and drive off. I mounted it in a 2018 Jeep wrangler, not very much room for the operating unit, but I I went off of one of your videos on a 2017 Jeep Wrangler Unlimited and mounted it underneath above the cross frame below and behind the radiator but still protected from the elements. Not a lot of room under the dash either, but everything is in and looks great and ready for the 1st trip.



by:

Works great! I would buy it again. Tow a 2021 Jeep Wrangler, 5400 lb., And glad to have the braking help, especially in the mountains. Low maintenance, no complicated wiring between motorhome and Jeep.

Stephen

1/3/2024

Still working great. Simple to use and effective. I have recommended it to many fellow RVers.



by:

I am very deceived and feel I have bee fooled by the false affirmation, this is not proportional. I DO NOT RECOMEND THIS PRODUCT.
This system is nothing but proportional. All proportional wording or video is misleading should be removed. It's actually an on-off system. When braking light is on and the tilt sensor actually (on-off) is on the pump is on at full pressure pressing the brake until it bottoms out, period. The pump inlet creates a vacuum for the brake booster and the pump outlet is for the cylinder pressing the brake. All triggered by a simple switch. Nothing is regulated or proportionally controlled. Totally false information is provided here. Unfortunately the initial concept is good, but lacking the extra electronic pressure regulator and electronic control.
I had to set the angle switch so the system ONLY TURNS ON in the event of an emergency, otherwise it will brake fully and destroy your towed vehicle brake.
I am sure this review will not appear and will be deleted by the moderator. Too many good fake reviews...

Etrailer Expert

Brooke M.

9/19/2023

I reached out to the manufacturer about this and they said what makes it proportional is the system works on two signals, the first signal needed is the brake signal that comes electrically from the coach, the second signal is when the towed vehicle feels forward inertia. The pump does not come on full, it slowly ramps up pressure, the more inertia felt the longer the system runs, the longer the system runs the more pressure that the system creates. The more pressure the system creates the harder the brake pedal is depressed. I also asked about the sensitivity issues you seem to be having and Demco said they have heard of that before when the sensor isn't installed level, as outlined on page nine of the instructions.



by:
2012 Dodge Charger

I installed this in a 2012 mini Cooper S. With the turbo charger there is no room in the engine compartment for the system unit, so I mounted it under the passenger seat. I had to remove the seat, cut out the carpet, mount the unit, and then buy longer seat attachment bolts. I used half inch thick spacers between the seat track in the floorboard. Made a long run for the vacuum hose to get up to the engine compartment through the firewall. By removing the cowling on the driver side, it exposes a huge Gromit where the main wiring harness passes through the firewall. It actually had two nipples ready to be cut off to run the vacuum hose and the wires through — so that part was pretty easy.
I haven’t towed it behind the motorhome yet, but it passed all the start up tests the first time!



by:

Best braking system om the market and e trailer once again is the best value for your dollar. been using the system for over a year without any issues what so ever



by:
Jeep

Works very well it saved my Jeep from a bad accident, but it will run down your battery, I use a solar panel on the hood to keep the battery topped off.



by:

Big job but good stuff. Used etrailer's you tube videos.



by:

Braking system is easy to use and works great. System was installed by etrailer and they did excellent job.


25
593
Show More Reviews

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

  • How to Flat Tow a 2016 Jeep Wrangler Behind a Motor Home with a Tow Bar
    Base plates and tow bars are sold separately. For a 2016 Jeep Wrangler I recommend Demco base plates # DM9519292 if it is NOT a Rubicon or Hard Rock edition. Or if you do have a Rubicon or Hard Rock edition I recommend # DM9518320. Both base plate sets are compatible with the Commander II tow bar, # DM9511012. The tow bar comes with the safety cables so you will not need any additional cables. Next you will need a lighting solution. I recommend the 4-diode kit # RM-152. Once installed...
    view full answer...
  • Recommended Components To Flat Tow 2019 Jeep Cherokee Trailhawk W/ 2019 Forest River Forester
    I would be happy to go over everything you need to flat tow your 2019 Jeep Cherokee Trailhawk with your 2019 Forest River Forester. Unfortunately the Blue Ox Base Plate Kit # BX1143 you mentioned is not compatible with your Blue Ox Alexxa Tow Bar BX7435 due to it requiring base plates with a different bracket spacing, so you will need a new tow bar as there is not a base plate kit available that will work with your tow bar.. I still recommend going with the # BX1143 but instead recommend...
    view full answer...
  • Is the Mopar Flat Tow Performance Kit Needed for a 2019 Jeep Cherokee
    According to my research, the Mopar Flat Tow Performance Kit 68321424AB is no longer needed on a 2019 Jeep Cherokee as it was for previous model years because revisions have been made to the power steering system to aid stability. That said, only the models with Active Drive II Transfer Case can be flat-towed which I believe is only available on the Trailhawk. I have attached some parts you will need to flat-tow below if you are interested. Roadmaster Nighthawk All Terrain Tow Bar part...
    view full answer...
  • RoadMaster Falcon All-Terrain Combo Towing Kit Used with 2021 Ford Escape
    I understand why you ask about the cord and perhaps we can revisit the sites text, it is a hybrid power cord design. By that we mean it's half coiled and half straight, so it's ideal for all-terrain models and other tow bars with channel guides such as the he Roadmaster Falcon All Terrain, Non-Binding Tow Bar, # RM-522. Please note the attached product review video. To flat tow your 2021 Ford Escape Hybrid you will need a base plate kit such as the Roadmaster Direct-Connect Base Plate...
    view full answer...
  • Equipment Needed to Flat Tow 2014 Volkswagen Jetta
    If your Jetta is a non-hybrid model and has the 5 speed manual transmission, it is capable be being flat towed. The automatic and 6 speed manual need to be towed on a tow dolly like # RM-2050-1, according to my research. If you can tow your particular vehicle, you'll need base plates, safety cables, a tow bar, a wiring harness, a supplemental braking system and possibly a high/low adapter. For base plates, use # 521236-1 and # RM-643 safety cables. For a tow bar, I'd recommend an all-terrain...
    view full answer...
  • Parts Needed to Flat Tow 2017 Ford Explorer
    It sounds like you are asking about the parts needed in order to flat tow your 2017 Ford Explorer, and I can let you know everything required in order to do that. If you are referring to any type of procedure you will need to check you owner's manual, and you can often find this under a section called "Recreational Towing." As for the parts, here is what is needed for you to flat tow your 2017 Ford Explorer: - Base Plate Kit: Demco Tabless Base Plate Kit # DM9519329 - Tow Bar: Demco Commander...
    view full answer...
  • Parts Needed to Flat Tow a 2018 Jeep Grand Cherokee
    The Sterling, part # RM-576, is a good tow bar so you definitely want to keep it. There aren't any Roadmaster base plate kits that fit the 2018 Jeep Grand Cherokee at this time so I recommend using the Blue Ox kit, part # BX1128, with the adapers # BX88151. The base plates are virtually hidden with the arms taken off. Take a look at the picture I attached. The Sterling originally included wiring to connect the motorhome to the Jeep as well as a 6-way connector to install on the front...
    view full answer...
    Image 1 for
  • What Versions of 2019 Jeep Cherokee Trail Hawk Can be Flat Towed behind Motorhome
    You can flat tow the 2019 Jeep Cherokee if it is a 4x4 model with 2-speed power transfer unit. Models with the 1-speed power transfer unit would have to be put on a trailer. None of the 2-wheel drive models can be flat towed but you can dolly tow front wheel drive models from the front. The reason for this is the 2WD models are front wheel drive so if you get the front wheels off the ground with a tow dolly like the part # RM-2050-1 you avoid the problems associated with flat towing. If...
    view full answer...
  • Recommended Base Plates for 2013 Jeep Wrangler Unlimited JKU with AEV Bumper
    The Roadmaster Stowmaster Tow Bar # RM-501 is not compatible with any of the Blue Ox or Demco baseplates. That tow bar is only compatible with the Roadmaster EZ, EZ2, EZ4 and XL baseplates. Because your 2013 Jeep JKU has the American Expedition Vehicles Bumper, the only fit is the Blue Ox # BX1133. This will mean changing to the Blue Ox Acclaim Tow Bar - A-Frame - Car Mount - 5,000 lbs # BX4330 for the similar design or upgrading to a receiver mounted tow bar like the Blue Ox Alpha #...
    view full answer...
  • Replacement Actuating Cylinder for SMI Supplemental Braking Systems
    I believe you are referring to the actuating cylinder and there are replacements available, depending on which SMI system you have. For the SMI Air Force One Supplemental Braking System for Motor Homes with Air Brakes # SM99243 you need the Replacement Duo Actuating Cylinder for SMI Air Force One Supplemental Braking System # DM6210. If you have the SMI Stay-IN-Play DUO Supplemental Braking System # SM99251 you need the Replacement Duo Actuating Cylinder for SMI Stay-IN-Play Supplemental...
    view full answer...
  • Installation of Stay-IN-Play DUO Supplemental Braking System SM99251 on a 2015 Mini Cooper S
    My contact at SMI advised that they have not done an install of their Stay-IN-Play DUO Supplemental Braking System # SM99251 on a 2015 Mini Cooper S (nor have we) but that by choice or necessity some owners have chosen to install the larger control unit component inside a vehicle's passenger compartment. You can refer to the linked review video to see all parts of the kit. The least-invasive braking system installation comes from the portable and wireless Blue Ox Patriot # BLU37TR. This...
    view full answer...
  • Parts Needed to Flat Tow a 2017 Ford Explorer with Adaptive Cruise Control Behind an RV
    For base plates for your 2017 Ford Explorer with adaptive cruise control you can use # RM-524446-5. Please note that the base plates are not compatible with models that have active air shutters. To use them with a vehicle with active air shutters that feature would have to be disabled and you would leave the air shutters open all the time. For a tow bar I recommend the popular Falcon 2 # RM-520 which is rated up to 6,000 pounds. I have linked a video featuring this tow bar for you. For...
    view full answer...
  • Will SMI Stay-IN-Play DUO Drain Battery on 2006 Jeep Liberty While Flat Towing
    Since the SMI Stay-IN-Play DUO Supplemental Braking System # SM99251 uses power from your 2006 Jeep Liberty's battery to engage the compressor, it is possible that the Stay-IN-Play could potentially drain the vehicle's battery over the course of a number of hours. We have not heard reports from our customers on this, but it is a possibility. I was not able to find any known issues of the Liberty's battery being drained while in tow mode in the vehicle's owner's manual. One thing that...
    view full answer...
  • Recommended Flat Towing Parts for a 2021 Jeep Wrangler Unlimited
    To flat tow your 2021 Jeep Sahara Unlimited Altitude behind your 2023 Coachmen Encore 325SS class a RV you will need the following parts: Tow Bar and Safety Chains - Roadmaster Falcon 2 Tow Bar item # RM-520 and item # RM-643 Base Plate Kit - Roadmaster Direct-Connect Base Plate Kit - Removable Arms item # RM-521453-5 Wiring Harness - Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit item # RM-15267. This diode kit allows you to use your Jeep's tail lights and wiring system while...
    view full answer...
  • Correct Flat Tow Wiring for a 2019 Ford F-250 w/ LED Lights
    Yes, we definitely do. Drilling into those LED's kills the entire light and we've heard some horror stories. The correct wiring kit for your 2019 Ford F-250 is the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit item # RM-15267. This kit includes everything you need for installation, including diodes that will work with your LED lights and act to prevent any type of electrical feedback. It also includes the 7-way to 6-way cable to connect your RV to your F-250. Here are some other...
    view full answer...
  • Recommended Flat Towing Parts for a 2023 Chevy Traverse
    I checked with our vendors and to flat tow your 2023 Chevy Traverse you will need the following parts: Tow Bar and Safety Chains - Blue Ox Alpha 2 Non-Binding Tow Bar item # BX7380 Base Plate Kit - Blue Ox Base Plate Kit - Removable Arms item # BLU33XR without shutters or item # BLU63CR if your Traverse has the lower shutters Wiring Harness - Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit item # RM-15267 Charge Line - Roadmaster Battery Charge Line Kit for Towed Vehicles item...
    view full answer...
  • Parts Needed to Flat Tow a 2015 Chevy Sonic Behind a Motor Home
    To flat tow a vehicle behind a motor home you will need 5 items: base plates, tow bar, safety cables, lighting, and supplemental braking. For base plates for your 2015 Chevy Sonic you can use Blue Ox base plates # BX1703. I have included a link to the installation instructions for you. For a compatible tow bar that comes with safety cables I recommend the Alpha, # BX7380. I have included a link to a video review featuring this tow bar for you. For lighting our installers prefer the bulb...
    view full answer...
  • Parts Needed to Flat Tow a 1996 Subaru Legacy Outback Behind a Motor Home
    Blue Ox base plates # BX3604 do indeed fit the 1996 Subaru Legacy Outback models. The base plates are compatible with the Alpha tow bar as well, # BX7380. The tow bar is rated for 6,500 pounds and comes with safety cables. You will also need a lighting solution and supplemental braking to complete the flat towing set up. For light a simple magnetic kit, # RM-2120, will work and it bypasses the vehicle wiring for easy set up. And finally, most states now require supplemental braking on...
    view full answer...
  • Parts Needed to Flat Tow a 2012 Jeep Wrangler Sport Behind a Motor Home
    I will be happy to help. For your 2012 Jeep Wrangler Sport, if it does NOT have any aftermarket bumper, winch, or grille guard/bull bar then you can use # RM-521448-4 for base plates. I have included a link to the installation instructions for you. If the Jeep does have an aftermarket bumper let me know the manufacturer and model and I can determine if there is a fit. If you have a regular bumper but a winch or grille guard or bull bar then those items would have to be removed. For a compatible...
    view full answer...
  • Wiring Instructions for SMI Stay-IN-Play DUO on 2008 Jeep Liberty
    The SMI Stay-IN-Play DUO Supplemental Braking System # SM99251 referenced in your question does not require separate brake and turn signals to operate properly. However, if you want to use the separate turn signals on your 2008 Jeep Liberty, then I recommend installing the Roadmaster 6-Diode Universal Wiring Kit # 154-792-118158 to connect the Jeep's lighting system to your RV's. To let the Jeep's system operate the brake lights, the red wire coming from the converter on this wiring kit...
    view full answer...
  • Recommended Complete Flat Tow Set-Up For 2014 Chevy Silverado 1500 4x4
    For your 2014 Chevy Silverado 1500 High Country 4x4, I recommend the Demco Classic Base Plate Kit # DM9518200. I recommend installing these base plates using loctite threadlocker # LT37420. These base plates will work well with the Demco Excali-Bar III # DM9511013. This is a very nice tow bar that comes with the safety cables needed for connection. For your tow bar wiring, I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 which uses diodes to utilize...
    view full answer...
  • Where is Stoplight Circuit Found on 2015 Chevy Sonic for SMI DUO Install
    You are in luck as we had the chance to install the SMI DUO part # SM99251 in a 2014 Chevy Sonic very similar to your 2015 model. I attached a video that shows the entire install process. In it you'll see that instead of tapping into the stoplight circuit of the vehicle they use the blue output wire on the operating unit instead.
    view full answer...
  • Parts Needed to Flat Tow a 2016 GMC Canyon
    To flat tow your 2016 GMC Canyon you're going to need a tow bar, base plates, wiring for the lights, a supplemental braking system for the truck's brakes, and possibly a high-low adapter. I suggest the Blue Ox # BX1721 for a base plate kit. This will fit your 4-wheel drive model with or without the adaptive cruise control. To connect to the RV I like the Avail # BX7420 for a tow bar because of the higher weight capacity. It also includes safety cables. To power the lights of your Canyon...
    view full answer...
  • Most Hidden Base Plates for 2014 Ford Edge, and Parts Needed to Flat Tow
    I spoke with my contact at Roadmaster and he confirmed that the # 524426-1 base plate that fits the 2014 Ford Edge with adaptive cruise control will not fit the Edge without adaptive cruise control. The fascia is different between these two different style Edges, so the base plates are not interchangeable. Between the Roadmaster # 4408-1 and the Blue Ox # BX2628 base plates for your 2014 Ford Edge (non-EcoBoost), it appears that the Roadmaster # 4408-1 would be more hidden due to the...
    view full answer...


< Previous
123. . .93



Do you have a question about this Tow Bar Braking System?


Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Nicholas E
Test Fit:
Nicholas E
Employee Randy B
Test Fit:
Randy B
Employee Jared G
Test Fit:
Jared G
Employee Matthew S
Test Fit:
Matthew S
Employee Andrew S
Test Fit:
Andrew S
Employee Brent H
Test Fit:
Brent H
Employee Robert C
Test Fit:
Robert C
Employee Conner L
Test Fit:
Conner L
Employee David F
Test Fit:
David F
Employee Ryan G
Test Fit:
Ryan G
Employee Clayton O
Test Fit:
Clayton O
Employee Bradley B
Test Fit:
Bradley B
Employee John A
Test Fit:
John A
Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Zack K
Video Edited:
Zack K
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
Video Edited:
Kathleen M
Employee Dustin K
Video Edited:
Dustin K
Employee Sue W
Video Edited:
Sue W
Employee Chris R
Video Edited:
Chris R
Employee Zach D
Video Edited:
Zach D
Employee Jonathan Y
Video Edited:
Jonathan Y
Employee John S
Video Edited:
John S
Employee Andrew K
Video by:
Andrew K
Employee Andrew L
Video by:
Andrew L
Employee Alan C
Video by:
Alan C
Employee Shane H
Video by:
Shane H
Employee Michael B
Video by:
Michael B
Employee Jacob H
Video by:
Jacob H
Employee Aidan B
Video by:
Aidan B
Employee Thomas T
Video by:
Thomas T
Employee Ethan H
Video by:
Ethan H
Employee Rick G
Video by:
Rick G
Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Mike S
Updated by:
Mike S
Employee Noah M
Updated by:
Noah M
Employee Manda E
Updated by:
Manda E
Employee Amanda K
Updated by:
Amanda K
Employee Lisa S
Written by:
Lisa S

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