What Firestone air suspension is
Firestone air suspension is an aftermarket suspension system that replaces your vehicle's factory springs with air-filled rubber bellows. Instead of metal coils or leaf springs pushing back when your wheels hit a bump, pressurized air inside these bellows absorbs the impact. Firestone, a tire and automotive parts company, manufactures these systems for trucks, SUVs, and some cars.
The system includes an air compressor (usually mounted under the vehicle or in the engine bay), an air tank to store pressure, and electronic controls that adjust how much air fills each bellow. When you drive over rough ground, sensors tell the compressor to add or release air, which raises or lowers your vehicle and changes how stiff or soft the suspension feels.
People choose air suspension mainly for two reasons: to carry heavy loads without the rear sagging, or to lower their vehicle for appearance. Firestone systems are popular in the truck and SUV market because they handle both tasks without replacing the entire suspension frame.
Key Takeaways
- Firestone air suspension uses pressurized air bellows instead of metal springs to absorb bumps and support weight.
- The system includes an air compressor, storage tank, and electronic controls that adjust pressure automatically or manually.
- Installation typically costs between $1,500 and $4,000 depending on your vehicle model and whether you use a dealer or independent shop.
- Air suspension requires periodic maintenance, including compressor checks and air line inspections, to prevent leaks and system failure.
- The system can fail if the compressor breaks or air bellows develop leaks, and repairs often cost $500 to $1,500 per component.
How the components work together
The air compressor is the engine of the system. It draws air from outside, pressurizes it, and pushes it into the storage tank. The tank holds that pressurized air until the system needs it. When you hit a pothole or load weight into your truck bed, sensors detect the change and signal the compressor to add more air to the bellows, stiffening the suspension and raising the vehicle height.
Each wheel has an air bellow (sometimes called an air spring) that sits where a traditional spring would be. These bellows are rubber and fabric cylinders sealed at both ends. As air pressure inside increases, the bellow expands and pushes upward, supporting the vehicle's weight. As pressure decreases, the bellow contracts and the vehicle lowers.
The electronic control module is a computer that monitors sensors at each wheel and decides how much air each bellow needs. On some Firestone systems, you can adjust this manually using a dashboard switch or smartphone app, raising or lowering the vehicle on demand. On others, the system adjusts automatically based on driving conditions and load.
Installation: what to expect and what it costs
Installation requires removing your vehicle's factory suspension components and bolting the Firestone air suspension kit in their place. This is not a bolt-on job—the compressor, tank, air lines, and electrical wiring must be routed through the vehicle, and the control module must be programmed to your specific make and model.
A Firestone dealer or certified suspension shop typically charges between $1,500 and $4,000 for a complete installation, depending on your vehicle. Trucks and SUVs tend to cost more because they have more complex suspension geometry. The kit itself (compressor, bellows, tank, lines, and controls) usually runs $800 to $2,500 before labor. Installation labor alone often takes 8 to 16 hours.
Some shops offer payment plans, and a few Firestone retailers provide installation discounts if you purchase the kit from them. Before committing, ask the shop whether they warranty their work and for how long—this matters because installation mistakes can cause the system to fail prematurely.
Maintenance and common failure points
Air suspension requires more maintenance than factory springs. The compressor can wear out, the air bellows can develop leaks, and the air lines can crack or separate. Most shops recommend having the system inspected annually, especially if you tow or carry heavy loads regularly.
The most common failure is a leaking air bellow. You will notice the vehicle sitting lower on one corner, or the compressor running constantly to maintain pressure. A single bellow replacement typically costs $400 to $800 in parts and labor. If the compressor fails, expect $600 to $1,500 depending on the model.
Air line leaks are usually cheaper to fix—often $100 to $300—but they can cause the entire system to lose pressure if not caught early. Check your air lines visually every few months, especially if you drive on rough roads. Listen for the compressor cycling on and off; if it runs more frequently than usual, you likely have a slow leak.
Advantages of air suspension over factory springs
The main advantage is load-leveling. If you load 1,000 pounds into your truck bed, the factory suspension compresses and the rear sags. An air suspension automatically adds air to the rear bellows, keeping the vehicle level and maintaining proper handling. This is especially valuable if you tow trailers or haul cargo regularly.
Air suspension also allows height adjustment. You can lower your vehicle for a sleeker appearance when parked, then raise it for highway driving or rough terrain. Some systems let you adjust each corner independently, which is useful if you want a custom stance.
Ride quality is often smoother than factory springs because air is more forgiving than metal. The system can adjust stiffness in real time, absorbing small bumps without the harshness of a traditional spring.
Disadvantages and when air suspension may not be right for you
Air suspension is more expensive to install and repair than factory springs. A single component failure can cost $500 to $1,500, whereas a factory spring replacement might cost $200 to $400. If your budget is tight, the long-term maintenance cost may outweigh the benefits.
The system is also more complex, which means more can go wrong. If the compressor fails and you are far from a shop, you cannot straightforward limp home on a damaged spring—the vehicle may not function properly until the compressor is repaired. Some people find this reliability risk unacceptable.
Air suspension also requires electricity to operate. If your vehicle's battery dies or the electrical connection corrodes, the system cannot adjust pressure, and you lose the load-leveling benefit. Factory springs work regardless of electrical status.
Comparing Firestone to other air suspension brands
Firestone is one of several companies making aftermarket air suspension. AirLift, Accuair, and Ridetech also manufacture popular systems. Firestone systems tend to be mid-range in price and reliability—not the cheapest, but not the most premium either.
AirLift systems are often less expensive upfront but may require more frequent maintenance. Accuair and Ridetech systems are typically more expensive but offer more customization and finer pressure control. The choice depends on your budget, how much you plan to adjust the system, and whether you value simplicity or precision.
Before choosing a brand, ask local shops which systems they service most often and what their repair costs are. A system that is cheaper to install but harder to find parts for may cost more over time.
Frequently Asked Questions
Can I install Firestone air suspension myself?
If you have advanced mechanical skills and the right tools, you can do some of the work, but most people should hire a professional. The electrical programming and pressure calibration require specialized knowledge, and mistakes can damage your vehicle or create safety issues. A shop warranty is worth the labor cost.
How long does a Firestone air suspension system last?
With proper maintenance, the compressor and tank can last 10 to 15 years. Air bellows typically last 5 to 10 years before developing leaks, depending on climate and use. Harsh winters and frequent heavy loads shorten the lifespan.
Will air suspension affect my vehicle's warranty?
Installing aftermarket suspension usually voids the factory suspension warranty and may affect other warranties depending on your manufacturer. Check your warranty documents or contact your dealer before installation. Some dealers will not service other suspension-related issues if you have modified the system.
What happens if my air suspension fails while I am driving?
If a bellow leaks or the compressor fails, the vehicle will gradually lower and the ride will become harsh. You should stop and have it towed rather than driving long distances, because the system may not support the vehicle properly and handling can become unsafe.
Is air suspension worth it for daily driving?
For daily driving without towing or heavy loads, factory springs are usually more reliable and cheaper to maintain. Air suspension makes the most sense if you regularly carry heavy cargo, tow, or want the ability to adjust your vehicle's height for different purposes.