Description
The PAI FAS-5059 is a genuine Goodyear 1S4-173 cab air spring engineered for Mack truck cab suspension systems. This precision-built air spring isolates vibration transmission from the frame to the cab, improving driver comfort and reducing noise on long hauls. PAI delivers premium OEM-equivalent quality at competitive aftermarket pricing.
Specifications
| Manufacturer | PAI (Goodyear 1S4-173) |
|---|---|
| Part Number | FAS-5059 |
| Part Type | Cab Air Spring |
| Outer Diameter | 3.71 inches |
| Air Inlet Thread | 1/8 inch NPT Female |
| Mounting Thread | 3/4 inch-16 Male |
| Length | 6.58 inches |
Cross References
This part replaces or is equivalent to the following part numbers:
- Mack: 227QS42M, 25165143, 8633-1S4173
Applications
This cab air spring is used on:
- Mack cab-to-frame isolation systems
- Mack CH, CL, Granite, Pinnacle trucks
- Heavy-duty cab suspension systems
Verify mounting thread size and air inlet connection before ordering to ensure correct fitment.
