Description
World American WA02-7205C is a sleeve-style cab air spring for Freightliner and Western Star Constellation cab suspensions, replacing OEM 66003-3406 and Firestone W02-358-7205. The composite bottom plate keeps weight down and the parallel mounting matches the OE bracket geometry, with full ride-height range from 5.6 in compressed up to 12.1 in extended.
Signs You Need a New Cab Air Spring
- Cab sitting low or unevenly when parked
- Audible air leak from the cab suspension area
- Visible cracks, dry rot, or tears in the bellows
- Harsh ride or excessive cab bounce over rough roads
Specifications
| Manufacturer | World American |
|---|---|
| Part Number | WA02-7205C |
| Part Type | Cab Air Spring (sleeve / reversible-sleeve) |
| Maximum Diameter | 5.10 in |
| Top Plate Diameter | 3.15 in (1 stud hole) |
| Bottom Plate Diameter | 2.87 in (1 stud hole, parallel alignment) |
| Bottom Plate Material | Composite |
| Compressed Height | 4.50 in |
| Extended Height | 10.10 in |
| Min / Max Height | 5.60 in / 12.10 in |
| Load Capacity | 865 lb @ 80 psi, 1084 lb @ 100 psi |
Cross References
This part replaces or is equivalent to the following part numbers:
- Freightliner / Western Star: 66003-3406
- Volvo: 660033406
- Firestone: W02-358-7205, 7205, W02-358-7203 (superseded), 7203
- ContiTech: 67638, CB7205
- Triangle Air Springs: AS-7205
- Dayton Parts: 353-7205
- World American: WA02-7205C, WA02-7205
- Also known as: FS7205, AS72050, TR7205
Applications
This cab air spring fits the following truck families:
- Freightliner Constellation (cab suspension)
- Western Star Constellation (cab suspension)
Verify your cab suspension model and mounting hardware before ordering to confirm fitment. Cab air springs must be matched by mounting plate and stud configuration.









