The Haldex 90555426 is an ILAS III fully automatic lift axle control valve designed for air-suspended lift axle systems. It monitors pressure in the air suspension and automatically lowers the lift axle when the vehicle is loaded, then raises the axle when the load is removed. Factory-set raise pressure is 20 PSI and drop pressure is 62 PSI. Ports are 1/4-18 NPT threaded and must face ground during installation. The valve's solid, single-component construction simplifies external mounting and eliminates complicated multi-piece plumbing runs. Also referenced as HAL90555426, HDX90555426, MD90555426, and ZZ90555426. Call us to confirm proper fit for your application.
Features
ILAS III fully automatic lift axle control valve
Factory raise pressure: 20 PSI; factory drop pressure: 62 PSI
1/4-18 NPT threaded ports, must face ground when mounted
Solid single-component design simplifies external mounting
Eliminates complicated multi-piece plumbing
Cross-references: HAL90555426, HDX90555426, MD90555426, ZZ90555426
Tech Specs
- Raise Pressure (Factory Setting): 20 PSI
- Drop Pressure (Factory Setting): 62 PSI
- Port Thread Size: 1/4-18 NPT
- Port Orientation: Ports must face ground
- Kit Contents: ILAS III Valve
- Cross References: 90555426, HAL90555426, HDX90555426, MD90555426, ZZ90555426
