Description
World American WA01-9780C rolling-lobe air spring, a direct aftermarket replacement for Freightliner 16-13810-000 and Firestone W01-358-9780 / 8536 cab and chassis suspension positions. 12.5 in design height, 7,860 lb load rating at 100 PSI, two-hole top plate and one-hole bottom plate — same envelope and mounting pattern as the OEM Freightliner air bag, no bracket modification required.
Signs You Need a New Air Spring
- Audible air leak from the bag, especially after sitting overnight
- Cab or chassis sitting low at one corner with system aired up
- Cracked, cut, or weather-checked rubber on the bellows
- Rough ride, harsh impact over bumps, or vehicle bottoming out
- Air-system leveling valve constantly cycling to refill the bag
Specifications
| Manufacturer | World American |
|---|---|
| Part Number | WA01-9780C |
| Part Type | Rolling-Lobe Air Spring |
| Design Height | 12.5 in |
| Maximum Height | 23 in |
| Minimum Height | 8.3 in |
| Maximum Diameter | 12.6 in |
| Load Rating @ 100 PSI | 7,860 lb |
| Load Rating @ 80 PSI | 6,290 lb |
| Natural Frequency | 70 cpm |
| Top Plate | 9 in dia., 2-hole, 6.2 in center-to-center |
| Bottom Plate | 10.63 in dia., 1-hole (Type P), 3.23 in center-to-center, parallel alignment |
| Warranty | 3 years |
Cross References
This part replaces or is equivalent to the following part numbers:
- Freightliner OEM: 16-13810-000
- Firestone: W01-358-9780, 8536, 9780
- Continental / ContiTech: 67473, AS9780, 9 10S-16 A 382
- Goodyear: 1R12-186, 1R12-189, 1R12-303
- Meritor: FS9780, RFS9780
- Euclid: E-FS9780
- Automann: AB1DF23-9780, AB1DF23-9781
- Dayton Parts: 352-9780
- Paccar Parts: AS9780P
- Triangle Air Springs: AS-9780, AS-8382, 8382
- Ridewell: 1003589780C
- Batco: 10-99780, 10-99782
- HDValue: HDV9780
- World American (variant): WA01-9781
Applications
This rolling-lobe air spring fits the following positions:
- Freightliner cab / chassis air-suspension positions originally fitted with 16-13810-000
- Heavy-duty trailer and chassis air-suspensions sized for the Firestone 9780 / W01-358-9780 / 8536 envelope
Representative vehicles using this air spring include Freightliner Classic / Classic XL, Columbia, Coronado, Century Class, FL/FLD/FLB, and Business Class M2 chassis at suspensions sized for the W01-358-9780 family.
Verify your existing air spring number, top/bottom plate hole pattern, and design height before ordering — the 9780 family includes WA01-9781 (variant top-plate) which uses a different mounting orientation.
