Description
The World American WA01-9101C is a premium aftermarket rolling lobe air spring designed for Neway, Holland, Ridewell, and Reyco trailer and truck suspensions. Manufactured by Midwest Truck & Auto Parts, this air spring delivers commercial-grade reliability with broad OEM cross-reference coverage. It directly replaces Firestone W01-358-9101, Goodyear 1R12-103, and Watson & Chalin AS-0040.
Signs You Need a New Air Spring
- Vehicle riding lower on one side or sagging
- Visible cracks, dry rot, or rubber deterioration on the bellows
- Air leaks causing loss of suspension pressure
- Harsh or bouncy ride quality, especially when loaded
- Uneven tire wear on axles
Specifications
| Manufacturer | World American (Midwest Truck & Auto Parts) |
|---|---|
| Part Number | WA01-9101C |
| Part Type | Rolling Lobe Air Spring |
| Application | Truck and Trailer Suspension |
| Firestone Bellows Number | 1T15M-9 |
| Goodyear Bellows Number | 566-24-3-066 |
| Extended Height | 25.60 in |
| Compressed Height | 9.70 in |
| Maximum Diameter | 12.50 in |
| Top Plate Diameter | 9.00 in |
| Top Plate Holes | 2 |
| Bottom Plate Diameter | 10.25 in |
| Bottom Plate Holes | 1 |
| Bottom Plate Type | Composite |
| Warranty | 1 Year / 100,000 Miles |
Cross References
This part replaces or is equivalent to the following part numbers:
- Firestone: W01-358-9101, 9101, 1T15M-9
- Goodyear: 1R12-103, 1R12-113, 1R12-116, 566-24-3-066
- SAF Holland/Neway: 90557008, 90557009, 90557043, 90557082, 90044201, 90044701, 90054218, AR14151F, AR14151G
- Watson & Chalin: AS-0040
- ContiTech: 9 10-19 P 315, 91019P315, 64279, 4159NP04
- Triangle: 8315, AS-8315, 6364
- Automann: AB1DK23L-9101
- Dayton: 352-9101
- Meritor/Euclid: FS9101, MAF9101, E-FS9101
- Ridewell: 1003589101C
- Reyco: 12883-01
- Hendrickson: B-3842, S-3842, S-10443
- Volvo: 3130490, 85101149
- International: 554768C1
- Torque: TR9101
- HD Value: HDV9101
Applications
This rolling lobe air spring fits:
- SAF Holland/Neway trailer and truck suspensions
- Ridewell suspensions using 1003589101C
- Reyco suspensions using 12883-01
- Watson & Chalin suspensions using AS-0040
- Hendrickson suspensions using B-3842 or S-3842
- Volvo trucks using 3130490 or 85101149
- International trucks using 554768C1
Verify your existing part number and suspension configuration before ordering to confirm fitment.









