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(888) 312-8812 Login SignupThe Firestone Air Spring supports suspension movement by compressing and expanding air within its sleeve structure as vehicle load changes. As weight shifts across the axle, air pressure inside the spring adjusts to allow vertical movement without metal spring deflection. This action allows the suspension to respond smoothly to road conditions while maintaining controlled ride height behavior. The air spring works continuously as the vehicle travels and reacts to load variation through air compression rather than mechanical bending. The Firestone W263589933 functions as part of an air-based suspension system that balances movement through changing pressure levels.
| Brand | Part Number |
|---|---|
| B816023, W266879933 | |
| CAP | 6975, FIP-100913 |
| CONTITECH | 78410 |
| KENWORTH | B81-6023 |
| MERITOR | FS9933 |
| PISTON | 6885, FIP-100912 |
| TORQUE PARTS | TR9933 |
| WORLD AMERICAN | WA01-9933C |
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Headquartered in Nashville, Tennessee, Firestone Industrial Products® is a proud manufacturer of air spring and other anti-vibration solutions to heavy duty trucks, trailers, commercial vehicles, rail cars, and industrial equipment. It has come a long way since it revolutionized transportation with the introduction of the Airide™ Air Spring in 1938. Today, Firestone is more than just an air spring manufacturer—it’s a global leader and a local partner that sees solutions where others see obstacles. Both OEMs and everyday consumers trust this brand for their air suspension needs because of its unwavering commitment to quality and reliability. All Firestone parts are engineered and tested in ISO-certified facilities to ensure they meet the strictest standards and customer specifications.
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