Description
The Firestone W01-455-9640 is a genuine OEM reversible sleeve air spring designed for Hendrickson trailer suspensions, including the HT-190T and HS-190T models. This Airide spring provides maximum load support, cargo protection, and extended service life on commercial trailers. As the original equipment manufacturer for the industry’s most trusted air springs, Firestone delivers superior performance backed by over 80 years of innovation and a 2-year / 200,000-mile warranty.
Signs You Need a New Trailer Air Spring
- Trailer sagging or sitting unevenly when loaded
- Visible cracks, dry rot, or weather checking on the bellows
- Air leaks causing inability to maintain ride height
- Excessive trailer bounce or “hop” when empty
- Uneven tire wear from suspension imbalance
Specifications
| Manufacturer | Firestone |
|---|---|
| Part Number | W01-455-9640 |
| Alternate Part Number | W01-358-9640 |
| Replaces | W01-358-9630 |
| Part Type | Reversible Sleeve Air Spring |
| Bellows Number | 1T15MT-3 (1T15M-3) |
| Extended Height | 15.80 in |
| Compressed Height | 5.40 in |
| Top Plate Number | 3242 |
| Top Plate Diameter | 9.00 in |
| Top Plate Holes | 1 |
| Piston Number | 9702 |
| Piston Diameter | 9.75 in |
| Piston Holes | 4 |
| Piston Material | Aluminum |
| Warranty | 2 Year / 200,000 Mile Firestone Warranty |
Cross References
This part replaces or is equivalent to the following part numbers:
- Firestone: 9640, 9630, W01-358-9640, W013589640
- Goodyear: 1R12-367
- Hendrickson: S-20223, C-20223, B-20223
- ContiTech: 64395, 9 10-12 A 427
- Automann: AB1DK23H-9640
- Dayton: 352-9640, 452-9640L
- Meritor: FS9640, MAF9640
- SAF Holland: G2299640400
- Triangle: 8427
- Volvo: 3098612
- World American: WA01-9640C
- Loadguard: SC2758
- Torque: TR9640
Applications
This air spring fits Hendrickson trailer suspensions found in:
- Hendrickson HT-190T trailer suspension
- Hendrickson HS-190T trailer suspension
- Dry van trailers with Hendrickson air ride
- Refrigerated trailers with Hendrickson suspension
- Flatbed trailers with compatible Hendrickson systems
Verify your suspension model and configuration before ordering to confirm fitment.
