Description
The World American WA01-9626C is a premium aftermarket rolling lobe air spring designed for Hendrickson INTRAAX AAL 23K and AANL 23K trailer suspensions with ride heights between 12 to 19 inches. Manufactured by Midwest Truck & Auto Parts, World American air springs deliver commercial-grade reliability with broad OEM cross-reference coverage. This air spring is a direct replacement for Firestone W01-358-9626, Hendrickson S-23720, and Goodyear 1R11-292.
Signs You Need a New Trailer Air Spring
- Trailer riding lower on one side or sagging
- Visible cracks, dry rot, or deterioration in the rubber bellows
- Air leaks causing the suspension to lose pressure
- Harsh or bouncy ride quality affecting cargo
- Uneven tire wear on trailer axles
Specifications
| Manufacturer | World American (Midwest Truck & Auto Parts) |
|---|---|
| Part Number | WA01-9626C |
| Part Type | Rolling Lobe Air Spring |
| Application | Trailer Suspension |
| Firestone Bellows Number | 1T15L-6 |
| Extended Height | 20.70 in (525.78 mm) |
| Compressed Height | 7.30 in (187.96 mm) |
| Maximum Diameter | 11.70 in |
| Top Plate Diameter | 9.00 in |
| Top Plate Holes | 2 |
| Top Plate Center-to-Center | 5.50 in |
| Bottom Plate Diameter | 10.31 in |
| Bottom Plate Holes | 1 |
| Bottom Plate Alignment | Parallel |
| Warranty | 1 Year / 100,000 Miles |
Cross References
This part replaces or is equivalent to the following part numbers:
- Firestone: W01-358-9626, 9626
- Goodyear: 1R11-292
- Hendrickson: S-23720, C-23720, B-23720, AA230L
- ContiTech: 64692, 9 9-16 P 568
- Triangle: 8568, AS-8568, AS-9626
- Automann: AB1DK20J-9626, 566.ER9626
- Dayton: 352-9626
- Meritor/Euclid: FS9626, E-FS9626
- SAF Holland: G2299626200
- Torque: TR9626
- HD Value: HDV9626
- Ford: D3TZ5560J
- PACCAR: AS96260
Applications
This rolling lobe air spring fits:
- Hendrickson INTRAAX AAL 23K trailer suspensions (12-19 in ride height)
- Hendrickson INTRAAX AANL 23K trailer suspensions (12-19 in ride height)
- Various trailer applications using Hendrickson S-23720 or C-23720
Verify your existing part number and mounting configuration before ordering to confirm fitment.









