Firestone Air Command: Analog, Wireless & Self-Leveling Kits

Firestone Air Command systems use onboard compressors to adjust compatible auxiliary air springs. The important differences are whether the left and right springs share one pressure line, how you control them, and which compressor duty class is supplied. This guide compares six exact Firestone kits available from NewRVParts so you can choose between analog, app-only, wireless-remote and automatic height-control systems.

One shared air pressure or independent left and right pressures?

Single path: 2921, 2922 and 2923Both springs inflate or deflate together at the same pressure. Choose between app-only control on heavy-duty 2921, or app-plus-remote control on standard-duty 2922 and heavy-duty 2923.
Dual path: 2911, 2933 and 2955Each side has independent pressure adjustment. Part 2911 uses in-cab analog control, 2933 combines the app and wireless remote, and 2955 automatically regulates height using the self-leveling system.

Firestone Air Command model and compressor comparison

Part number Model Air path Control type Compressor class
2911 Dual Analog Heavy Dual Cab-mounted analog gauge and switches Heavy (150 PSI maximum)
2921 Single Wireless Heavy Single Phone app only Heavy (150 PSI maximum)
2922 Single Wireless Standard Single Phone app and handheld remote Standard (100 PSI maximum)
2923 Single Wireless Heavy Single Phone app and handheld remote Heavy (150 PSI maximum)
2933 Dual Wireless Standard Dual Phone app and handheld remote Standard (100 PSI maximum)
2955 Dual Self-Leveling Extreme Dual Automatic height-valve control Extreme (150 PSI maximum)
Compressor PSI is not your air-spring operating pressure. A 150 PSI compressor rating does not authorize inflating the fitted suspension air springs to 150 PSI. Follow the maximum pressure and minimum inflation specified for the exact installed air-spring system, along with its vehicle application instructions.

What changes with standard, heavy and extreme duty?

Firestone publishes a maximum compressor pressure of 100 PSI for standard duty and 150 PSI for heavy duty and extreme duty. It also publishes duty-cycle ratings of approximately 9%, 30% and 100%, respectively. Duty cycle measures how much of a specified cycle the compressor can run; it is not the same as a suspension load rating.

The 2921 heavy-duty system is controlled through a compatible smartphone app only. If you want a dedicated handheld remote, the 2923 heavy-duty or 2922 standard-duty single-path kit includes remote-plus-app control. 2933 provides that wireless control with separate left/right adjustment. 2911 uses a more traditional in-cab analog gauge and switch arrangement.

What is different about self-leveling 2955?

The 2955 is Firestone's dual-path, extreme-duty automatic height-control system. It uses height-valve feedback to maintain the selected spring height as loading changes. Firestone lists an extreme-duty compressor rated at 150 PSI, a two-gallon air tank and pneumatic controls with the kit. It is not simply a wireless version of 2933, and its installation and control components differ.

Before selecting or installing an Air Command system

  1. Identify the existing air springs. Air Command is an air-management accessory, not a vehicle-specific spring kit. Confirm compatible air-line size, spring pressure requirements and the actual vehicle suspension application.
  2. Choose the control layout. A single-path setup cannot independently balance left and right pressure. A dual-path setup can, where the matched suspension design permits it.
  3. Determine how you want to operate it. Analog switches, phone-app-only, app-plus-remote and self-leveling equipment use different components. Do not assume a remote from one MPN is an included or compatible accessory for another.
  4. Check mounting hardware and space. Firestone supplies mounting plates with the listed systems, but plate suitability and no-drill installation vary by vehicle. Review the exact kit instructions and confirm safe compressor, ECU and tank locations.
  5. Follow electrical and air-line instructions. Check battery power, fuse protection, heat clearance, suspension travel and required air-line routing. Never exceed the pressure limit of the installed springs or tubing.
  6. Respect factory load ratings. An air-spring compressor can help adjust support for a permitted load; it does not increase the vehicle manufacturer's GVWR, axle rating, payload or towing capacity.

Shop the corresponding Firestone compressor kits

These cards open the exact NewRVParts product listings. Orders ship from supplier warehouses; warehouse viewing and pickup are not available.

Compare another air-control system

For an alternative manufacturer's single- and dual-path arrangements, see our Air Lift compressor system comparison. Air Lift and Firestone controller, compressor and plumbing parts should not be assumed interchangeable.

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