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Replacement Breakaway Switch Pin for Demco Air Force One and Stay-IN-Play Duo Braking Systems
Demco

Replacement Breakaway Switch Pin for Demco Air Force One and Stay-IN-Play Duo Braking Systems

Part Number: SM99905
In Stock
$23.55
Accessories and Parts
Confirmed to Fit
2012 Ford Edge

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Replaces the pull pin on the breakaway switch that came with your Demco Air Force One or Stay-IN-Play Duo supplemental braking system. 1-800-940-8924 to order Demco accessories and parts part number SM99905 or order online at etrailer.com. Free expert support on all Demco products. Great prices and Fastest Shipping for Replacement Breakaway Switch Pin for Demco Air Force One and Stay-IN-Play Duo Braking Systems. Accessories and Parts reviews from real customers.
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  • Reviews (281)
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Demco Accessories and Parts - SM99905

  • Flat Tow Brake System
  • Pins
  • Demco

Replaces the pull pin on the breakaway switch that came with your Demco Air Force One or Stay-IN-Play Duo supplemental braking system.


Features:

  • Replaces the pull pin on the breakaway switch that came with your Demco braking system
  • Works with the Air Force One and Stay-IN-Play Duo


16030 Demco SBS (Formerly SMI) Replacement Break Away Plug for Air Force 1 or Stay-N-Play DUO Supplemental Braking System

Replaces Demco SBS SM99905




California residents: click here


Video of Replacement Breakaway Switch Pin for Demco Air Force One and Stay-IN-Play Duo Braking Systems

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




Video Transcript for Demco SMI Supplemental Braking System Replacement Breakaway Switch Pin Review

Jake: Hey, guys. It's Jake here with etrailer. Today we're going to be taking a look at the replacement pin for your SMI braking system.In our case here, we had a customer who had a breakaway, and the tow vehicle had separated from the towed vehicle, and he lost the breakaway pin. So, he's picking up a new one. To replace this, you just slide it back in and replace your cable. This is very important to have, because otherwise, your system's not going to work.You want to make sure you keep your pin in good condition, so whether that's you've lost one, you've broken one, or it's just gotten older and brittle and you need to replace it.

It's a simple and small enough part to keep on hand for those longer trips, so you might want to go ahead and pick up a couple of them when you get your system or when you get a replacement.Then of course before you leave, you want to make sure you hook up your safety cable and you're ready to hit the road. With that being said, that's going to do it for our look and installation of our SMI replacement pin.

Customer Satisfaction Score:

Ratings & Reviews

4.9

281 reviews
Replaces the pull pin on the breakaway switch that came with your Demco Air Force One or Stay-IN-Play Duo supplemental braking system.

by:

We have been looking for a spare pin, since our friends had a mishap with their towed and a spare pin was needed. These worked perfectly with our Stay-in-Play. I purchased 2, one for us and one for them!



by:

The part fit as expected. The shipping and customer service was exceptional.



by:

As always etrailer is spot on with price, quick shipping and after sells service. I highly recommend having a spare breakaway pin just in case someone pulls it out while you’re away from your RV toad



by:

I purchased these so that if anyone took my adapter out of my breakaway switch I would not be stranded. It is good to have an extra one or two on hand.



by:

Identical replacement pin Fits perfectly



by:

I bought this as a spare to carry with me when traveling.



by:

Bought as a spare pin since you don't want to be totally without one! Etrailer had exactly what we needed and easy to find on website.



by:

I bought it as a "spare" for piece of mind when towing. Someone could easily remove it as a "prank" when parked and then you are stuck without flat towing capability. Small price to pay when you consider the potential inconvenience.



by:

Was right part and delivered as promised

Rickey profile picture

Rickey

2/9/2025

Works perfect, bought a slate just in case someone would steal other one

Robin H. profile picture
Etrailer Expert

Robin H.

2/9/2025

@Rickey good idea!


by:

Bought so we would have a spare just in case the original was lost. Fit perfectly.



by:

The product is a perfect match for the stay and play braking system. Like everyone else I was apprehensive at someone stealing the unsecured original and leaving us without brakes. I’m not thrilled that if it does get stolen and the toggle switch inside the side gets accidentally turned on the brakes will fully apply.
Seems a liability so having a back up makes sense to me and most everyone else.

John profile picture

John

11/21/2019

Update: if your tow car has a standard transmission with hill brake assist do not adjust so much that the hill brake assist comes on. It doesn’t release quickly enough and your tow car brakes will lock up for a scary second or two



by:

Part fit well on my Blue Ox breakaway switch. I tested to see if worked. Performed as designed. The cable attachment looks kind of funky. I replaced it with a small clevis.

Thomas profile picture

Thomas

6/1/2020

Fine



by:

Neighbors kid took mine out of my tow jeep and lost it. Great replacement



by:

The picture was very clear and allowed me to identify this pin as the one I needed. I purchased two for a backup. Because it sticks out of the front of the car, it looks too tempting for a child to walk by and pull it out. It was exactly what I needed

Catherine profile picture

Catherine

9/1/2020

Still working and intact after thousands of miles.



by:

Needed a spare



by:

I ordered an extra breakaway pin to keep as back up after installing a Demco Stay-in-play brake system I am very pleased with the Demco brake system and also with the prompt and accurate service provided by etralier.com in providing the breakaway pin. Great service. Thanks.



by:

It’s exactly what I needed to have for my Demco braking system.

Ethan profile picture

Ethan

11/4/2023

I bought this breakaway pin for my vehicle when it is not being towed to keep dirt and sand out and it fits perfectly.



by:

Spare break-away key key fits perfectly in our Demco Stay-IN-Play Duo system!



by:

I ordered the Break away switch pin. It arrived quickly and was exactly what I ordered. I use it as a back up. However, I did test it to make sure it would work for my Stay and Play braking system for my tow vehicle.



by:

This was an unusually hard product to find...etrailer.com was the only place that had it. I wanted a spare pin for my breakaway, in case anything happened to the original while traveling. This is exactly like the original pin. Perfect fit, quick delivery and fair price.



by:

Purchased the replacement breakaway pin for my Air Force One tow vehicle braking system. Product arrived as promised and in perfect shape. Exactly as advertised. They even checked with me to make sure it was what I was expecting. Great customer service.



by:

I was advised to have a back up Breakaway Switch Pin for our Air Force One braking system. This pin works perfect and I will keep it with the car in the event the present one gets damaged or loss. etrailer sent it out quickly and now I have a backup to keep in our tow car. I would recommend getting a back up pin.



by:

I wanted a backup breakaway plug for my SMI Duo brake system but the only one listed was for a Air Force One. Jackie looked at both and said they were identical So I ordered it and it functions perfectly. Thanks!



by:

The product was as described and expected and delivered on time. What I really want to write about is the service from etrailer and Hally C. This was a small order but Hally C treated me with respect like was a long standing customer who was placing a huge order with them again. This was actually my first order with them (and a small one at that) but will certainly not be my last. Customer service still matters in this day of lowest possible cost. So thank you to Hally C. You are outstanding to work with.



by:

I felt the loop on my existing breakaway switch hanging on the front of my car was too much temptation for a kid to pull it and take off with it, so I decided I should carry a spare. Tried it and it seems to work. I couldn't find a replacement anywhere other than etrailer!


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Info for this part was:

Employee Jackie C
Expert Research:
Jackie C
Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Kathleen M
Installed by:
Kathleen M
Employee Jacob H
Installed by:
Jacob H
Employee Laura H
Written by:
Laura H
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Sabrina W
Updated by:
Sabrina W

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