Description
Automann AB1DK23P-9935 rolling lobe trailer air spring — the OE-equivalent bag for SAF Holland / Neway RL-series trailer air-ride suspensions, also cross-referenced to Firestone W01-358-9935 / 9935 (1T15M-7.5 bellows), SAF Holland 90557157 / 90557301, and Goodyear 1R12-532. 22.50 in extended, 7.40 in compressed, 9.00 in top plate (1 stud, plate 3226), 10.25 in piston (1 stud, piston 9532).
Signs You Need a New Trailer Air Spring
- Trailer sagging or sitting unevenly when loaded
- Visible cracks, dry rot, or weather checking on the bellows
- Air leaks — trailer cannot maintain ride height
- Excessive trailer bounce or harsh ride quality
- Uneven tire wear from suspension imbalance
Specifications
| Manufacturer | Automann |
|---|---|
| Part Number | AB1DK23P-9935 |
| Part Type | Rolling Lobe Air Spring (Trailer) |
| Extended Height | 22.50 in |
| Compressed Height | 7.40 in |
| Top Plate | 3226, 9.00 in OD, 1 stud |
| Piston | 9532, 10.25 in OD, 1 stud |
| Bellows | 1T15M-7.5 |
| Weight | 14.30 lb |
Cross References
This trailer air spring replaces or is equivalent to the following part numbers:
- Firestone: W01-358-9935, W01-675-9935, 9935, 1T15M-7.5
- SAF Holland / Neway: 90557157, 90557301, 905-57-157, 905-57-301, G2299935200
- Goodyear: 1R12-532, 566-24-3-097
- ContiTech: 63941, 64412, 65577, 68886, 73903, 77309, 9 10-17.5 P 548, AS9935
- Dayton: 352-9935, 452-9935
- Meritor: FS9935, MAF9935
- Triangle: 8548, AS-8548
- Watson & Chalin: AS-0164-1G
- World American: WA01-9935C
- HD Value: HDV9935
- Torque: TR9935
- Sampa: SP559935-KP
Applications
This rolling lobe air spring fits SAF Holland / Neway RL-series trailer air suspensions, including:
- SAF Holland / Neway RL-196 trailer suspension
- SAF Holland / Neway RL-228 trailer suspension
- SAF Holland / Neway RL-230 trailer suspension
- SAF Holland / Neway RL-250 trailer suspension
- SAF Holland / Neway RL-300 trailer suspension
Representative trailer types using these suspensions:
- Dry van, refrigerated, and flatbed trailers
- Timpte hopper trailers with Neway air ride
Air springs should be replaced in pairs (or full axle set). Confirm extended (22.50 in) and compressed (7.40 in) heights and 1-stud top/piston geometry against your existing bag before ordering.
