Description
ContiTech AS9547 rolling-lobe air spring for the rear suspension of Kenworth and Peterbilt class-8 trucks built on the Airglide 200 and Airglide 400 platforms. The AS9547 directly replaces OEM Kenworth/Peterbilt C81-1004 and is the Continental aftermarket equivalent of Firestone W01-358-9547 (bellows 1T15LA) and Goodyear 1R11-268.
Signs You Need a New Air Spring
- Truck sits unevenly or sags on one side
- Cracks, blisters, or wear on the rubber bellows
- Audible air leaks from the bellows or top plate
- Loss of ride height that air pressure can no longer correct
Specifications
| Manufacturer | ContiTech |
|---|---|
| Part Number | AS9547 |
| Part Type | Rolling Lobe Air Spring |
| Position | Rear suspension |
| Vehicle Compatibility | Kenworth / Peterbilt with Airglide 200 or Airglide 400 rear air suspension |
| Condition | New |
Cross References
This part replaces or is equivalent to the following part numbers:
- ContiTech: AS9547, 68358, 8859
- Firestone: W01-358-9547 (1T15LA bellows)
- Goodyear: 1R11-268
- Meritor: FS9547
- Kenworth: C81-1004
- Peterbilt: C81-1004
- Also known as: 1DK20G-9547, 9547
Applications
This air spring fits the rear air suspension on:
- Kenworth Airglide 200 (8-bag) tractors
- Kenworth Airglide 400 (8-bag) tractors
- Peterbilt models specifying C81-1004 in the rear-air-suspension position
Verify the existing part number on the air spring or in your truck’s parts manual before ordering — Kenworth and Peterbilt have used several similar-looking rolling-lobe air springs across model years.
