| Product Line | Suspension |
| Category Name | Air Springs and Bags |
| Part Type | Rolling Lobe Air Spring |
| Alternate Part Name | Air Suspension Bag, Reversible Sleeve Air Spring, Rolling Lobe Air Spring, Air Ride Spring, Pneumatic Spring, Suspension Air Bag, Air Bag Suspension |
| OEM Part Number | A16-21558-000 |
| Application Type | Semi-Trucks, Heavy Duty Trucks |
| VMRS | 016-008-000 |
| Material | Fiber reinforced rubber bellows |
| Air Inlet Inside Thread | M12 x 1.5-6H |
| Body Diameter | 12.60 in. |
| Bottom Plate Alignment | Parallel |
| Bottom Plate Diameter | 10.63 in. |
| Bottom Plate Stud | 1/2-13 UNC |
| Mounting Stud Configuration - Bottom | 1 |
| Mounting Stud Configuration - Top | 1 |
| Piston Height | 6.89 in. |
| Piston Material Type | Composite |
| Top Plate Diameter | 9 in. |
| Top Plate Stud | 1/2-13 UNC-2A |
| Air Spring Type | Rolling Lobe |
| Collapsed Length | 4.37 in. |
| Extended Length | 12.92 in |
| Net Weight | 15 lb. |
| Cross References | A1621558001, 910S-16P1652, 79562, A16-21558-000, 1R12-603, 1R12603, 910S-16P1652, 910S16P1652, 9759 / W013589759, TR9759 (TR21558)Automann |
| Intended Application | - Compatible with the rear suspension of Freightliner Airliner vehicles as a direct replacement for OEM Freightliner part number A16-21558-000. This air spring balances load distribution, absorbs road irregularities, and maintains chassis structural alignment in heavy-duty tractor-trailers.
- Always compare with your OEM part number prior to purchase to confirm full compatibility.
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