Description
Genuine Firestone W01-358-9082 Airide rolling-lobe trailer air spring (model 1T15M-6) for Hendrickson, Holland-Neway, Ridewell, Watson & Chalin, and similar OE-style trailer suspensions. Aftermarket and OEM cross-reference for Goodyear 1R12-092 / 1R12-093 / 1R12-509 and Hendrickson B2066. 13.5″ design height, 7160 lb load rating at 100 psi, 4-bolt 45° bottom plate.
Specifications
| Manufacturer | Firestone Airide |
|---|---|
| Part Number | W01-358-9082 (1T15M-6) |
| Part Type | Rolling-Lobe Trailer Air Spring |
| Design Height | 13.5 in |
| Maximum Height | 21.6 in |
| Minimum Height | 7.9 in |
| Maximum Diameter | 12.6 in |
| Bottom Plate Diameter | 10.31 in (4 holes, 45°, 2.25″ center-to-center) |
| Load at 100 PSI | 7160 lb |
| Load at 80 PSI | 5710 lb |
| Natural Frequency | 70 cpm |
Cross References
This part replaces or is equivalent to the following part numbers:
- Firestone: 9082
- Goodyear: 1R12-092, 1R12-093, 1R12-509
- Continental ContiTech: 91016P310
- Hendrickson: B2066, 365147
- Holland: 90557075, 90557054, 90557033, 90557027, 90557006, 90044200
- Meritor: 201869
- Mack: 57QL310
- Volvo: 3130491
- Navistar: 517096C91
- Paccar: AS90820
- Reyco Granning: 12882-01
- Ridewell: 1003589082C
- Triangle: AS-4314
- Watson & Chalin: AS-0011
- Dayton Parts: 352-9082
- Euclid: E-FS9082
- Batco: 10-99082
- Binkley: B-12514-007
Applications
Used as the rolling-lobe air spring on a wide range of OE trailer and tractor air-ride suspensions, including:
- Hendrickson trailer air-ride (B2066-equipped systems)
- Holland-Neway trailer suspensions (90557-series)
- Ridewell, Reyco Granning, Watson & Chalin trailer suspensions
- Volvo, Mack, Navistar, and Paccar OE applications referencing the cross-numbers above
Verify mounted height, plate hole pattern, and load rating against your existing air spring before ordering — multiple Firestone rolling-lobe springs share similar dimensions but differ in plate stud configuration.









