Description
World American WA01-9875C is a rolling lobe air spring (15 in design height, 7,830 lbs at 100 PSI / 6,264 lbs at 80 PSI) for heavy-duty drive-axle and trailer-axle suspensions, replacing Firestone W01-358-9875 (9875), Goodyear 1R12-432, ContiTech 910B1-95P889 / AS10673, and Navistar / International 3541731C1. The bellows uses a 9 in top plate (2 holes) and 10 in bottom plate (1 hole, parallel) for direct bolt-in fit on Firestone-9875-style mounting brackets.
Signs You Need a New Air Spring
- Truck riding lower on one corner or sagging under load
- Visible cracks, dry rot, or weathering on the rubber bellows
- Audible air leaks at the spring at ride height
- Excessive bouncing, sway, or rough ride
- Uneven tire wear on the affected axle
Specifications
| Manufacturer | World American |
|---|---|
| Part Number | WA01-9875C |
| Part Type | Air Spring (Rolling Lobe) |
| Design Height | 15 in |
| Maximum Height | 23.7 in |
| Minimum Height | 6.1 in |
| Maximum Diameter | 13.6 in |
| Top Plate Diameter | 9 in |
| Top Plate Hole Quantity | 2 |
| Top Plate Center-to-Center | 5.87 in |
| Bottom Plate Diameter | 10 in (Type A, Parallel) |
| Bottom Plate Hole Quantity | 1 |
| Bottom Plate Center-to-Center | 2.25 in |
| Natural Frequency | 60 |
| Load Rating (100 PSI) | 7,830 lbs |
| Load Rating (80 PSI) | 6,264 lbs |
| Warranty | 3 Years |
Cross References
This air spring replaces or is equivalent to the following part numbers:
- Firestone: W01-358-9875, 9875, W01-358-1191
- Goodyear: 1R12-432
- ContiTech: 73746, 910B1-95P889 / 910B195P889, AS10673, AS1191
- Dayton Parts: 352-1191
- HDValue: HDV9875
- Meritor: FS9875, FS1191
- Navistar / International: 3541731C1
- Paccar Parts: AS10663, AS78659
- Triangle Air Springs: AS-9875, AS-8889, 8889
- Automann: AB1DF23I-P1067
- World American: WA01-9875, WA01-1191 (alias)
Applications
This air spring fits the following heavy-duty truck and trailer suspensions (replace by existing Firestone / ContiTech / Goodyear / OEM number):
- International / Navistar — chassis using OEM 3541731C1 air spring
- Paccar (Kenworth / Peterbilt) — chassis using AS10663 / AS78659 air spring
- Heavy-duty drive-axle and trailer-axle air-ride suspensions calling for Firestone W01-358-9875 or ContiTech AS10673
Verify your existing air spring part number, mounting plate hole pattern (top plate: 2 holes on 5.87 in CC; bottom plate: 1 hole / Type A), and ride height before ordering. Do not order by truck make and model alone.
