Recommended Stop Light Switch for a 2026 Ford Maverick Installing a Demco Stay-IN-Play Duo
Published 11/13/2026
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Question:
Can I add the reed switch to a stay and play that doesnt come with one. I would rather add the reed switch than a suplimental brake light switch
asked by: Kenny
Expert Reply:
Welcome back Kenny. Unfortunately, you can not just add a reed switch to the Demco Stay-IN-Play Duo Braking System item # DM86VR you purchased. You'll need to use the Roadmaster Stop Light Switch Kit item # RM87GR to complete the installation on a 2026 Ford Maverick.
The Roadmaster Stop Light Switch Kit item # RM87GR is custom fit for a 2026 Ford Maverick. I have attached an installation video below so you can see how to get it setup.
You would have to upgrade the cylinder in your Stay-IN-Play Duo Braking System item # DM86VR to cutout installing a stop light switch. The Replacement Air Cylinder for Demco Air Force One Flat Tow Brake System item # DM6210 is the one you would need. The Demco Reed Switch Assembly is a magnetic sensor. When air pressure moves the cylinder piston, an internal magnet moves away from the reed switch, completing the circuit to turn on your coach monitor light. Attaching a reed switch to the outside of that cylinder will result in the indicator light staying permanently on or off, depending on how it is wired.
Is this setup for a 2026 Maverick or for another flat tow? Feel free to answer this and throw in any other questions you have, where it says Add Comment.
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Product Page this Question was Asked From
Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes - Proportional
- Flat Tow Brake System
- Brake Systems
- Proportional System
- One-Time Setup
- Vehicle Battery
- Fixed System
- Power Assist Brake Compatible
- Air Brakes
- Indicator Lights
- Demco
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Kenny
11/13/2026
Thanks. It is for the Maverick but I can see it's uses for other applications. Is there a way to have an upgraded cylinder included with a stay and play? I see that I can order a cylinder with the reed switch but it becomes cost prohibitive and then I'm left with a unused ,non reed switch cylinder. It would be a great step saver if the cylinder had the switch.