Replacement Check Valve Needed For The Demco Air Force One Supplemental Braking System
Updated 10/30/2025 | Published 02/15/2025
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Question:
I am looking for a replacement check valve for the Air Force One Demco braking system. The check valve is in-line on the hose that connects to the “vacuum port” on the main unit under my hood of my Jeep. Any help would be greatly appreciated! Thank you
asked by: Wayne A
Expert Reply:
Hi Wayne,
The Replacement Check Valve for Demco SBS Supplemental Braking Systems # SM99909 is what you're looking for. You'll want to place the black end towards the main unit of your Air Force One # DM23MV. If you need anything other replacements just let me know and I'd be happy to help.
Product Page this Question was Asked From
Demco Air Force One Flat Tow Brake System for 2021 and Newer Freightliner Chassis RVs w/ BrakeSync
- Flat Tow Brake System
- Brake Systems
- Proportional System
- One-Time Setup
- Vehicle Battery
- Fixed System
- Power Assist Brake Compatible
- Air Brakes
- Indicator Lights
- Demco
more information >
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on Flat Tow Brake System
Jameson C.
10/30/2025
Hey Wayne, how did the replacement check valve work out with your Air Force One system on the Jeep? Your update could make it easier for the next person needing the same part.