Compatibility Chart:

1, Air suspension spring bags installed on the Truck, Coach and Trailer are designed usually as generic types.

2, Firestone Part Number collected all the air suspension model, which could be used as an Integration Code while searching on eBay or Amazon.

3, You can distinguish specific model of air suspension spring bags on your Autotruck/Heavy-Duty Truck/Touring Car/Passenger Coach/Trailer by checking original SPN(Supplier Part Number) listed as below, all of which has a consistent one-to-one match with specific Firestone Part Number

Kenworth
C811005

ContiTech
9910P861

PACCAR
C811005

Firestone Part Number
W01-358-9541

Firestone Air Spring Style Number
1T15LA0

Firestone OEM Number
W01-544-9543

Features  and Benefits:  

• Provides  superior handing for a smooth, controlled ride both on and off  road.
• Prevents sagging, an uneven suspension and the air compressor from running excessively
• Made of high quality raw materials, effectively reduce air leakage, strong sealing
• All parts are hand inspected off the line before packaging and once again by our team before shipment.
• According to the original factory specifications.
• Direct replacement for a proper fit every time
• Easy installation.
• Stable characteristics, high reliability.
• Aftermarket Products with Premium Quality.
• Precisely engineered to absorb shock and vibration from the road
• Return policy: Enjoy 30 days return and exchange 

Removal Warning & Notice:

  Vent all air pressure from the air suspension system prior to disconnecting or removing any air suspension components. It is dangerous to remove air suspension components while under pressure. Failure to follow this instruction may result in serious personal injury. 

  Any air spring which is unfolded must be refolded prior to being installed in a vehicle. Refer to the procedure. An incorrectly folded air spring could rupture, altering the handling characteristics of the vehicle. If a vehicle has been driven with an incorrectly folded air spring, a new air spring must be installed. Failure to follow these instructions may result in serious injury to vehicle occupant(s). 

  Failure to observe the following instructions may result in a sudden failure of the air spring or suspension system.
  Any rear spring which is unfolded must be refolded prior to being installed in a vehicle.
  The air spring refolding procedure should only be used for an air spring which has never supported the vehicle's weight while in the incorrectly folded position.
  Incorrectly folded air springs found on vehicles during pre-delivery inspection or after use must be installed new.
  Do not attempt to inflate any air spring which has been collapsed while uninflated from the rebound hanging position to the jounce stop.
  When installing a new air spring, care must be taken not to apply a load to the suspension until springs have been inflated using the air spring fill procedure.
  After inflating an air spring in the hanging position, it must be inspected for correct shape.
1.NOTE: The vehicle must be positioned on a suitable lifting device prior to deflating the air suspension system.
With the vehicle in NEUTRAL, position on a hoist until the wheel and tire assemblies are slightly above the ground. 
2.Using the scan tool, vent the air springs.
3.Remove the air spring retainer.
4.Detach the air spring from the rear axle.

5.Remove the air spring in the following sequence.

1.Disconnect the air spring solenoid electrical connector.

2.Compress the quick connect locking ring and pull out the air tube.

3.Remove the air spring.

Frequently Asked Questions:

Can air suspension be used in the winter?

Most certainly yes! While winter does provide some unique challenges to driving, some simple maintenance on your air system can make cold climate motoring a non-event. One thing about being based in Lansing, MI, we see PLENTY of cold, snowy weather! As a matter of fact, there are a few of us that take advantage of the weather to indulge in some …ahem… sideways driving and even ice racing with our bagged cars.

What kind of maintenance is recommended for air suspension?

Overall, the only maintenance is to regularly drain the air tank to reduce the amount of water circulating through the system. We offer in-line water traps that can aide in this activity, while also significantly reducing the amount of water that gets in the system in the first place. In any case, draining the system once a month is a good rule of thumb and only takes a minute. For those of us in the northern climates, keeping your system dry is key to trouble-free running in the winter.

What is the difference between air line sizes?

In the automotive aftermarket, there are 3 common size air lines: 1/4”, 3/8”, 1/2”. The most commonly used size tends to be 1/4” because it is the easiest to rout through the vehicle. Some people like the car to move from one position to the next faster than 1/4” can do (based on the flow rate and air spring volume/pressure requirements) so they tend to choose 3/8”. The crowd that likes 1/2” will choose that size because they want the body to spring up very quickly when a valve is activated. Installing ½” lines can be the equivalent of wrestling an anaconda…

Can I install air suspension myself?

Our kits are designed for DIY people to easily and correctly install all the components if they follow our comprehensive instruction manuals. Anyone that can wire a stereo and swap suspension components has the required skills to complete a basic installation in their driveway over a weekend. However, some kits require frame modifications or welding where metal fabrication is necessary. This is NOT an area where a first-timer should learn those skills!

Where can I get air suspension installed?

Any competent shop that performs mechanical work will have the necessary tools to complete the job.

Which side of my car is the Right and Left?

The right and left sides of an automobile are determined as if sitting in the car facing forward. Thus, the left side is on the left when sitting in the car facing forward, and the right side is on the right. For American cars, the driver’s side is on the left, and the passenger sits to the right of the driver. For cars in Japan, Britain, Ireland, the Bahamas and some other former British colonies -- where they drive on the left side of the road -- the passenger sits on the left side, and the driver (along with all the driving controls) is on the right.

The  Detail of Accessory (Important):

Purchase  List:

2 x   Air Suspension Spring Bag