Replacement Check Valve Needed For The Demco Air Force One Supplemental Braking System
Updated 10/30/2025 | Published 02/15/2025
Products Featured in This Question
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 >
Featured Help Information
Instructions
Continue Researching
- Shop: Vehicle Tow Bar Brake System
- Search Results: demco
- Shop: Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes - Proportional
- Shop: Roadmaster BrakeMaster w/ Pressure Reducer for RVs w Air or Air-Over-Hydraulic Brakes - Proportional
- Shop: Replacement Check Valve for Demco SBS Supplemental Braking Systems
- Shop: Replacement 3/8" Vacuum Check Valve for Roadmaster InvisiBrake and Second Vehicle Kit
- Shop: Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes - Wireless Monitoring - Proportional
- Search Results: battery post extenders
- Q&A: Will # DW05418 Work With a NOCO GENPRO 10X4 # NOC84FR?
- Video: What to Know About the Demco Vacuum Tee Fitting for Factory Brake Booster Sensor Port
- Video: Demco Air Force One Supplemental Braking System Installation - 2022 Ford Escape
- Video: Demco Air Force One Flat Tow Brake System - 2021 and Newer Freightliner Chassis RVs Comprehensive Re
- Video: Demco Air Force One Supplemental Braking System Installation - 2020 Jeep Grand Cherokee
- Shop: Demco Vacuum Tee Fitting for Factory Brake Booster Sensor Port - Air Force One and Stay-IN-Play Duo
- Shop: Demco Air Force One Flat Tow Brake System for 2021 and Newer Freightliner Chassis RVs w/ BrakeSync
- Q&A: Installing A Demco Air Force One Supplemental Braking System On A 2019 Ford F-150 Diesel
- Q&A: Supplemental Braking System Recommendation for 2021 Jeep Gladiator Rubicon
- Q&A: Will The Demco Air Force One For Freightliner Chassis Come With Detailed Installation Instructions
- Q&A: How To Know If Your Tiffin Motorhome Has A Towed Air Brake Setup Or BrakeSync
- Search Results: kayak
- Video: Detailed Breakdown of the Replacement Check Valve for Demco SBS Supplemental Braking Systems
- Video: Review of Demco Air Force One Coiled BrakeSync Air Jumper Kit - DM97ZR
- Q&A: How to Install Demco Air Force One on 2024 Jeep Gladiator Rubicon with Hard Vacuum Line
- Video: Detailed Breakdown of the Brass Battery Terminal Bolt Extender
- Q&A: Can Using Heavier Gauge Wire Allow NOCO GenPro to Extend Wiring Past 10 Feet
- Search Results: furrion stove cooktop accessories
- Search Results: rv washer and dryer
- Search Results: splendide
- Shop: Vehicle Tow Bar Wiring
- Search Results: trailer hitch
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.