Description
Automann AB1DK23P-9471 rolling lobe air spring for SAF-Holland Neway AD-123, AD-246, and AD-369 drive-axle air suspensions. Direct aftermarket replacement for Firestone W01-358-9471 (1T15V-8 bellows, 3253 top plate, 9540 piston), Mack 57QL415M, and Holland / Neway 90557146 / 90557212. Plastic 1-bolt piston, internal jounce bumper, rated 7,100 lb at 100 PSI for severe-duty vocational service.
Signs You Need a New Air Spring
- Truck sitting lower than normal or uneven ride height side to side
- Visible cracks, dry rot, or chafing on the rubber bellows
- Audible air leak at the bellows or top plate
- Excessive bouncing or harsh ride under load
- Suspension dump / refill cycles run more frequently than normal
Specifications
| Manufacturer | Automann |
|---|---|
| Part Number | AB1DK23P-9471 |
| Part Type | Rolling Lobe Air Spring |
| Design Height | 14.50 in |
| Extended / Compressed Height | 24.60 in / 9.90 in |
| Maximum Diameter | 12.60 in |
| Top Plate | 9.00 in dia, 2 studs at 5.87 in C-to-C |
| Bottom Plate | 10.31 in dia, 1-bolt plastic (Type A), parallel |
| Internal Bumper | Yes |
| Load Rating @ 80 PSI | 5,680 lb |
| Load Rating @ 100 PSI | 7,100 lb |
| Natural Frequency | 62-64 CPM |
| Firestone Bellows | 1T15V-8 |
| Firestone Top Plate / Piston | 3253 / 9540 |
| Warranty | 3 Years |
Cross References
This part replaces or is equivalent to the following part numbers:
- Firestone: W01-358-9471, 9471
- SAF-Holland / Neway: 90557146, 90557177, 90557182, 90557212, 90557214
- Mack: 57QL415M
- Goodyear: 1R12-372, 1R12-504, 1R12-552
- ContiTech: 64409, 69648
- Oshkosh: 6HA945, 8HR994
- Navistar: 2022634C1
- Terex: 19480
- Triangle: 8458, 8502
- Dayton: 452-9471
- Meritor: FS9471
- PACCAR: AS94710
- World American: WA01-9471C
Applications
This rolling lobe air spring fits drive-axle air suspensions originally specified with any of the cross-referenced part numbers, including:
- SAF-Holland Neway AD-123 single drive-axle (23,000 lb)
- SAF-Holland Neway AD-246 tandem drive-axle (46,000 lb)
- SAF-Holland Neway AD-369 tridem drive-axle
- Mack vocational trucks with Neway AD-series suspensions
- Kenworth and Peterbilt vocational trucks (C500, T440, T800, W900) with Neway AD-series
- Oshkosh vocational trucks and fire apparatus
- Severe-duty service: construction, refuse, logging, fire apparatus, heavy haul
Bottom mount note: This piston has a 1-bolt bottom mount. For 2-bolt piston applications on the same suspension family, see Automann AB1DK23P-P572.
Verify your OEM part number, suspension model, and bottom-mount stud count before ordering to confirm fitment.
