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Firestone · Suspension & Steering
9580
In stock · ships from Knoxville
This is a Firestone reversible sleeve air spring (air bag) used in heavy-duty trailer suspension systems.
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Part data verified against 5 catalog sources
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It carries the vehicle's weight and provides a cushioned ride by absorbing road bumps with compressed air. Over time, air springs can crack, leak, or lose pressure, causing sagging or a harsh ride; replacing a worn bag restores proper ride height and load handling. The 9580 directly replaces original equipment on many Hendrickson trailer suspensions, including the S-20127 and S-20414 assemblies.
Part Number: 9580
AIR BAG
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside suspension & steering
