| Product Line | Suspension |
| Category Name | Air Springs and Bags |
| Part Type | Cabin Air Spring |
| Alternate Part Name | Super-Cushion Sleeve Air Spring, Cab Suspension Air Spring, Tapered Sleeve Air Spring, Cab Air Bag |
| OEM Part Number | 1S4-173 |
| Application Type | Heavy Duty Trucks, Semi-Trucks |
| VMRS Code | 016-008-000 |
| Material | Reinforced Rubber |
| Air Inlet Outside Thread | 1/2-13 UNF |
| Bottom Plate Alignment | Parallel |
| Bottom Plate Diameter | 3.25 in. |
| Bottom Plate Inside Thread | 1/4 NPTF |
| Mounting Hole Configuration - Bottom | 1 |
| Mounting Hole Configuration - Top | 1 |
| Top Plate Diameter | 2.65 in. |
| Air Spring Type | Sleeve |
| Collapsed Length | 2.20 in. |
| Extended Length | 7.10 in. |
| Net Weight | 0.92 lb. |
| Cross References | 1S4-173, 1S4173, 227QS42M, FAS-5059, FAS5059 |
| Intended Application | - Compatible with Mack Trucks (Cab/Seat) equipped with Cab/Seat Sleeve-Style Air Suspension System.
- Always compare with your OEM part number prior to purchase to confirm full compatibility.
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