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Replace the coiled air jumper hose for your Demco Air Force One supplemental braking system.
Features:
Fits:
California residents: click here
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today, we're taking a look at a replacement air jumper. Now, this replaces the air jumper for SMI Air Force One supplemental braking system, part number SM99202. This coiled air hose connects your air assembly in the RV to the operating unit on the towed vehicle. It has the quick connect ends that makes the unit easy to attach and detach. These ends are corrosion-resistant when it comes to the finishing, so it's gonna keep the quick connect safe from rust and corrosion. It is a direct replacement part, straight from the manufacturer, and it's blue in color when it comes to the hose, and the length when it's fully stretched out is around 7 feet long.
That's gonna do it for today's look at the replacement air jumper for the SMI Air Force One supplemental braking system, part number SM99202.
Etrailer is awesome. If you don’t know exactly what part you need, customer service always seems to know what you’re needing. Order lots of trailer parts and they are usually the cheapest and shipping is fast. Quality of parts is always good.
Just arrived so have not used it. It appears to be a direct replacement for my old damaged air hose. Once I get to use it and if it performs as expected i would then give it a 5.
David
12/8/2025
Hose has worked as advertised. Glad to have it.
I always go back to etrailer when I mess up a part or something breaks.
Great job Jermey thank you for your ass istance.
Mike L.
2/11/2026
Thanks Richard, I'll pass your kind comment along to Jeremy!
The Air Jumper for my Demco Air Force One tow system arrived on the date expected, and was in the OEM packaging from Demco. Very satisfied with the item and the service I received from Joshua B @ etrailer
Fantastic parts and exactly as advertised. Thank you again, ETrailer
You were very helpful even though I did not receive the air hose the next day as requested.You said you would refund me the overnight shipping fee.Thank you.
I always like to have spares on my esse ntials.
Exact replacement for original hose
Awesome customer service and projected date of delivery was exactly the date delivered.
This product has held up great for over a year with no issues
Amy J was so helpful assisting in my product choice. I have ordered from e-trailer before and have always been impressed with their expertise quick response. Thank you, Amy.
Gwendolyn Y.
3/6/2025
Hey John. Thanks for sharing your kind words about Amy! I'll definitely make sure she gets this :)
We needed this part to tow our car behind our motorhome. Etrailer said UPS could deliver it in 1 day so I paid extra for UPS and the next day it arrived.
The hardest part was figuring out exactly what part I needed for my type of vehicle and motorhome connection. I followed the directions on this website and it worked out perfectly. The hose is great! Just what I needed.
Easy website to find what you are looking for and fast shipping
Follow through was done well.
We love it
This was replacement for original that was damaged. It works great.
Perfect. Needed part asap and received it next day. Just what we needed.
What I needed
I just returned from a 3100 mile trip where my current air brake hose started leaking as the result of an earlier accident. i must have checked 15 retail shops and RV centers along the way for a replacement product, no one had a separate hose, only the full air force one system. i found your company online and was happy that the product arrived ahead of schedule and works perfectly.
Chuck
9/28/2020
All great!
Even though our coach has been in the shop for 9 months, our dedication to finding the very best products have always s been our primary goal. We have been rving for 14 years and have found your products to be just that.
Victoria H.
3/22/2025
I hope you're able to get back on the road soon Lenmar! We enjoy being your go-to for all your RVing needs and will be here for you anytime you need along your adventures!
I needed this fast as the one I had disconnected and was damaged. It came within 48 hrs but it was the wrong part. The website asked for my vehicle and this is the part it said I needed however it didn't ask if my vehicle was on a Freightliner or a Spartan chassis. There is a difference and the one I got didn't fit. I had no choice as I needed it right away so I swapped the fittings with the damaged one to make it work.
Customer service was outstanding.
We were on the road and somehow lost our jumper air hose. Without it we had no towed brakes. Thanks for helping get the new part to our camp site and get us back on the road.
Marie
6/14/2024
We have managed to not lose our new hose you only do that once and the hose is working as it should.
Info for this part was:
At etrailer 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.
Bob
10/22/2025
It’s a perfect replacement for the one I damaged. Very good quality.