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(888) 312-8812 Login SignupThe reversible-sleeve design of the Firestone Suspension Air Spring Kit lets the bellows roll over its piston as suspension height changes instead of simply folding in one spot. Built around the Firestone 1T15LC-12 design, the kit uses compressed air to carry load while the sleeve accommodates repeated axle movement. This Firestone W013589619 air spring renews the sealed bellows that lets the suspension hold ride height without constant air loss. A sealed replacement restores both ride-height support and the compliant movement your truck's air suspension depends on.
TECHNICAL DATA -
| Order Number: | W01-358-9619 |
| Bellows #: | 1T15LC-12 |
| Assembly Weight: | 16.2 lbs |
| Design Height: | 16.5-19.5 inches |
| Minimum Jounce Height: | 9.3 inches |
| Maximum Rebound Height: | 26.81 inches |
| Loading Capacity at 20 psig: | 1,330 lbsf |
| Loading Capacity at 60 psig: | 3,990 lbsf |
| Loading Capacity at 90 psig: | 5,985 lbsf |
| Natural Frequency: | Hz |
| Maximum Diameter: | 11.9 inches |
| Material Type: | N/A |
| Operating Temperature: | 57Cº to-54Cº |
| Remarks: | |
| TR: B-8799 |
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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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