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(888) 312-8812 Login SignupThe Hendrickson Air Suspension Spring is specially built to absorb and distribute these forces, delivering a smoother, more controlled ride. With an 11.31” top and a 10.13” bottom, this dual-top suspension spring ensures even weight distribution, reducing strain on suspension components while improving overall vehicle stability. Trucks carry heavy loads over long distances, making suspension integrity critical. A high-quality air suspension system extends the life of tires, minimizes wear on axles, and enhances driver comfort, especially on uneven terrain. The Hendrickson S-20901 is a must-have for fleets that prioritize efficiency and long-term vehicle performance.
| Bottom Plate Diameter | 10.13 in |
| Max Working Diameter | 10.63 in |
| Top Plate Diameter | 11.31 in |
| Extended Height | 19.00 in |
| Piston Height | 4.74 in |
| Compressed Height | 5.10 in |
| Top Mounting | Combination stud |
| Air Spring Convolutions | Single |
| Bottom Mounting | Stud |
| Air Connection Configuration | Top - Dual |
| Brand | Part Number |
|---|---|
| Automann | AB1DK28E8091 |
| AirSource | 8523 |
| Hendrickson | S21784 |
| Firestone | W013588091 |
| Euclid | FS8091 |
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