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(888) 312-8812 Login SignupSuspension control depends on how well the axle stays managed under load, and the Firestone Air Spring is designed to handle that movement without transmitting harshness to the chassis. Its reversible sleeve construction allows the air spring to move freely along the piston as ride height changes, preventing binding during suspension travel. A corrosion-resistant composite piston supports extended stroke operation while avoiding the surface damage common with metal designs exposed to road chemicals. The reinforced rubber sleeve is built to tolerate constant compression, extension, and debris exposure without losing air retention. When inflated, the Firestone W013589375 air spring stabilizes ride height and dampens vibration to protect both suspension components and cargo.
| Brand | Part Number |
|---|---|
| W014559375, 566241012, 566243097, 566243111, FIW013589375 | |
| AIRTECH AIR SPRINGS | 39375KPP |
| CONTITECH | 910175P451, 910185P451, AS9375 |
| DAYTON PARTS | 452-9375L |
| FIRESTONE | 1T15M8, 1T15MT-8 |
| GOODYEAR | 1R12488, 1S12031 |
| GOODYEAR BELLOWS | 566-24-1-012, 566-24-3-097 |
| GOODYEAR PART | 1R12-404, 1S12-031 |
| HENDRICKSON | 508991, 50899-1, 50899-2 |
| HENDRICKSON TRUCK | 508991 |
| MACK | 57QL414M |
| MERITOR | FS9375, MAF9375 |
| PISTON | 9538 |
| TOP PLATE | 3313 |
| TORQUE PARTS | TR9375 |
| TRIANGLE BELLOWS | 6391 |
| TRIANGLE PART | 8451 |
| TRIANGLE SUSPENSION | AS-8451 |
| WORLD AMERICAN | WA01-9375C |
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