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(888) 312-8812 Login SignupHow much strain does a truck endure on the road? The Hendrickson Air Suspension Spring is engineered to meet these demands, offering a balance of stability and resilience. With its 11.38” top and 9.22” bottom dimensions, this suspension spring absorbs shocks, evens out weight distribution, and minimizes vibrations that contribute to wear and tear. Note that the Hendrickson S-28929 is a safeguard, extending the longevity of truck systems while enhancing ride quality. A well-supported journey ensures that drivers remain focused, cargo remains secure, and the vehicle operates at peak performance.
| Top Plate Diameter | 10.38 in |
| Max Working Diameter | 10.62 in |
| Extended Height | 21.50 in |
| Piston Height | 5.38 in |
| Compressed Height | 9.10 in |
| Bottom Plate Diameter | 9.22 in |
| Top Mounting | Combination stud |
| Air Spring Convolutions | Single |
| Bottom Mounting | Stud |
| Air Connection Configuration | Top - Single |
| Brand | Part Number |
|---|---|
| FS9978, HENS-28929, HDRS28929 | |
| AUTOMANN | MHSK485 |
| CONTITECH | AS9978, 67588 |
| FIRESTONE | 1T15M4, W013589978 |
| GOODYEAR | 1R12-668 |
| HENDRICKSON | S-28929-48 |
| MERITOR | FS9978 |
| POWER10 PARTS | HT-S28929, AB-1R12-1179 |
| TORQUE PARTS | TR9978 |
| WORLD AMERICAN | WA01-9978C |
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