Description
HD Value HDV8864 rolling-lobe air spring for Peterbilt and Kenworth drive-axle low-leaf suspensions. Bonded rubber/fabric bellows on a steel piston restores OE ride height and damping at a fleet-friendly price. Direct replacement for Firestone W01-358-8864, ContiTech 66666, and Peterbilt C81-1013.
Signs You Need a New Air Spring
- Truck sags on one side or sits low at rest
- Audible air leak from the bellows or dump-valve area
- Visible cracks, dry-rot, or chunking on the rubber bellows
- Air system can’t hold ride height overnight
- Harsh ride or excessive axle motion over bumps
Specifications
| Manufacturer | HD Value |
|---|---|
| Part Number | HDV8864 |
| Part Type | Rolling-Lobe Air Spring (Drive Axle) |
| Top Plate Diameter | 9.00″ |
| Bottom Piston Diameter | 7.87″ |
| Extended Length | 24.50″ |
| Compressed Length | 7.75″ |
| Mounting | Top: 2 threaded holes; Bottom: 1 threaded hole |
Cross References
This air spring replaces or is equivalent to the following part numbers:
- Firestone: W01-358-8864, 8864, W013588864
- Peterbilt / Paccar / Kenworth: C81-1013, C81-1011, C81-1017
- ContiTech: 66666, 03-08716
- Goodyear: 1R12-1097
- Torque: AS88640
Applications
This air spring fits the following truck platforms:
- Peterbilt 379, 386, 387, 388, 389, 567, 579 (drive-axle low-leaf suspensions)
- Kenworth W900, T660, T680, T800, T880 (drive-axle low-leaf suspensions)
Verify your suspension type and air-spring location before ordering. Many Class 8 trucks use different springs at the front, drive, and tag/pusher axles. The HDV8864 fits drive-axle low-leaf positions on the chassis above.
