Description
HD Value HDV9375 is a reversible-sleeve air spring for Mack tractor and vocational trucks with Hendrickson air-ride rear suspensions, replacing Mack 57QL414M, Firestone W01-358-9375 (1T15MT-8 bellows), and Hendrickson 50899-1/2. The composite piston, dual-stud 9.00″ top plate, and 22.00″ extended height match the OE air spring used across the Mack Anthem, Granite, Pinnacle, CX/CXU, and Vision platforms.
Signs You Need a New Truck Air Spring
- Truck sitting lower on one side or uneven ride height
- Visible cracks, dry rot, or weather checking on the bellows
- Air leaks causing the compressor to cycle frequently
- Harsh ride quality or excessive cab bounce
Specifications
| Manufacturer | HD Value (FleetPride) |
|---|---|
| Part Number | HDV9375 |
| Part Type | Reversible Sleeve Air Spring |
| Application | Tractor / vocational rear suspension |
| Extended Height | 22.00 in |
| Compressed Height | 8.10 in |
| Maximum Diameter | 10.12 in |
| Top Plate Diameter | 9.00 in (2 stud holes) |
| Piston | 10.00 in composite (1 hole) |
| Weight | 16.30 lb |
Cross References
This part replaces or is equivalent to the following part numbers:
- Mack: 57QL414M, 364SQ27, 3645Q27, 364QS27, 20755320, 25158024
- Hendrickson: 50899-1, 50899-2, 50899-001, 50899-002, 50899002L
- Firestone: W01-358-9375, W01-358-9373, 9375, 9373, 1T15MT-8
- Goodyear: 1R12-404, 1R12-488
- ContiTech: 64264, AS9375, 9 10-17.5 P 451
- Dayton Parts: 352-9375
- Triangle Air Springs: AS-8451, 8451
- World American: WA01-9375C
- Torque: TR9375
- Also known as: FS9375, AB1DK23M-9375, 566.ER9375, SP559375-KP, 280-9375, 889375, 1S12-030, 1S12-031
Applications
This air spring fits Mack trucks with Hendrickson air-ride rear suspensions, including:
- Mack Anthem (2018+) with Hendrickson air ride
- Mack Granite with Hendrickson air ride
- Mack Pinnacle with Hendrickson air ride
- Mack CX, CXU, CXN tractors
- Mack Vision trucks with Hendrickson suspension
- Other Class 8 trucks using the Hendrickson 50899 air spring family
Verify your suspension model and OEM part number before ordering to confirm fitment.
