Plastic Piston Air Suspension System W01-358-2119 Firestone Truck
Air Spring 1T14C-1
Product Description
Product Name: Firestone truck Air Spring
Material: Rubber + Carbon Steel + Plastic
Function: Lifting, shock absorption
Application scenario: Used in truck or trailer suspension
Advantages: High reliability, long life, durability
Air Spring Type: 1T Reversible Sleeve
Scope of Application: Rowe Truck ASC1400HL Lift
Original Manufacturer: Firestone W01-358-2119 / WO1-358-2119
Original Manufacturer: Firestone W01 358 2119 / WO1 358 2119
Original Manufacturer: Firestone W013582119 / WO13582119
Original Manufacturer: Firestone 1T14C-1 / 1T 14C-1
Cross Manufacturer: Contitech 6 6.5B-11 S 027
Cross Manufacturer: Contitech 68108
Cross Manufacturer: Goodyear 1R9-065 / 1R 9-065
Cross Manufacturer: Goodyear 566-18-3-003
Cross Manufacturer: Goodyear 566 18 3 003
Cross Manufacturer: Goodyear 566183003
Granning Number:5122
Hendrickson Trailer Number:S-2394, S2394, B2394, B-2394
Rowe Truck Number:ASC1400HL
UPC: 767555002124
MPN: W013582119
Specifications and Detailed Technical Parameters
Extended Height:311.15mm/12.25 inches |
Compressed Height: 81.28mm/3.20 inches |
Top Plate Width:160.3mm/6.31 inches |
Piston Width:177.8mm/7.00 inches |
Weight:8kg |
Piston Height: 48.3mm/1.9 inches |
Features of Truck Air Springs
1. Height adjustability
- Active adjustment: Change the height of the airbag by inflating and
deflating, adapt to different loads (empty/heavy), keep the frame
level, and improve stability.
- Application scenarios: Automatically lower the body when loading
and unloading, and raise it when driving at high speed to improve
passability.
2. Excellent shock absorption performance
- Non-linear elasticity: The stiffness of the air spring changes
dynamically with the load, which is softer than the leaf spring,
greatly reducing the transmission of road vibration and protecting
the cargo and chassis components.
- Improved comfort: Reduced driver fatigue, especially suitable for
long-distance transportation.
3. Flexible load capacity
- Load adaptation: The air pressure is proportional to the load, and
the single-axle load can reach more than 10 tons (such as heavy
trucks), and it is evenly distributed to avoid local overload.
- Comparative advantages: Compared with leaf springs, air springs are
softer when lightly loaded and have stronger support when heavily
loaded.
4. Durability and reliability
- Material technology: airbags are mostly made of high-strength
rubber + cord layer (such as nylon or polyester), which is
tear-resistant, ozone/oil-resistant, and usually has a service life
of 5-8 years or more than 500,000 kilometers.
- Extreme working conditions: -40℃~+70℃ stable operation, but air
tightness needs to be checked regularly.
5. Integrated electronic control system (high-end configuration)
- Intelligent control: ECU monitors the body posture in real time and
automatically adjusts the pressure of each airbag (such as
anti-rolling during cornering and anti-nodding during braking).
- Function expansion: ESP and ABS can be linked to improve safety.
6. Maintenance and economy
- High cost: The initial investment is 2-3 times that of leaf
springs, but in the long run, it can reduce maintenance costs
(reduce chassis parts loss).
- Maintenance points: It is necessary to regularly check airbag
cracks, pipeline leaks, and replace desiccant (to prevent valve
body freezing damage).
7. Environmental protection and regulatory adaptation
- Lightweight: 30%~50% lighter than steel springs, helping to reduce
emissions (especially electric trucks).
- Regulatory requirements: Europe and the United States have strict
standards for the comfort/safety of heavy-duty vehicle suspensions,
and air springs are becoming the mainstream.
W01-358-2119 Firestone Air Spring Product Physical Pictures

