Description
ContiTech AS9781 rolling lobe air spring with aluminum (Type A) base for Freightliner FASII AirLiner drive-axle suspensions (40K). Direct replacement for Freightliner 16-13801-000 / 16-16773-000 / 681-320-0017, Firestone W01-358-9781, and Goodyear 1R12-603. 23 in extended height with a 6,290 lb load rating at 80 PSI on Cascadia, Columbia, Century, and Coronado tractors.
Signs You Need a New Air Spring
- Visible cracks, dry rot, or chafing on the rubber bellows
- Truck riding low or sitting unevenly side-to-side
- Audible air leak from the drive-axle suspension
- Excessive bouncing or harsh ride at highway speed
- Air compressor cycling more often than usual
Specifications
| Manufacturer | ContiTech (Continental) |
|---|---|
| Part Number | AS9781 (64266) |
| Bellows Number | 9 10S-16 A 382 (ContiTech) / 1T15ZR-6 (Firestone) |
| Part Type | Rolling Lobe Air Spring |
| Base Type | Aluminum (Type A) |
| Design Height | 12.50 in |
| Extended Height | 23.00 in |
| Compressed Height | 8.30 in |
| Top Plate | 9.00 in dia, 6.20 in c-c |
| Bottom Plate | 10.63 in dia, 3.03 in c-c (parallel) |
| Maximum Diameter | 12.60 in |
| Load Rating @ 80 PSI | 6,290 lb |
| Load Rating @ 100 PSI | 7,860 lb |
Cross References
This part replaces or is equivalent to the following part numbers:
- Freightliner: 681-320-0017, 16-13801-000, 16-13810-000, 16-13840-000, 16-14004-000/001, 16-15595-000, 16-16773-000, A16-17574-001/002
- Firestone: W01-358-9781, W01-377-8536, W01-377-8537, 9781
- Goodyear: 1R12-603, 1R12-1064, 1R12-1082
- ContiTech: 64266, 65017, 68955, 73389, 9 10S-16 A 382
- Triangle: AS-8382, AS-8999
- Automann: AB1DF23-9781
- HD Value: HDV9781
- Meritor: FS9781, MAF9781
- World American: WA01-9781C
- Dayton Parts: 352-9781, 352-9782
- Watson & Chalin: AS-01471G, AS-0182
- Volvo: 85101151
Applications
This air spring fits Freightliner FASII AirLiner single and tandem drive-axle suspensions (40K) on:
- Freightliner Cascadia 113 / 125 (2008–2017)
- Freightliner Columbia 112 / 120 (2001–2016)
- Freightliner Century 112 / 120 (1996–2010)
- Freightliner Classic 120 / Classic XL 132 (1990–2010)
- Freightliner Coronado 132 (2003–2016)
- Freightliner Argosy (1999–2015)
- Freightliner FL Business Class (FL50–FL80, 1996–2005)
Note: This part has an aluminum base (Type A). For the plastic-base variant, see ContiTech AS9780 / 67473. Verify your OE part number before ordering.









