The Midland Haldex Pilot Valve, part number 90554615, is a remote-mounted control valve designed for flexible placement at any chassis location. Port A measures 1/4" NPT and Port B measures 1/8" NPT. The valve activates by applying pilot pressure, making it well suited for auxiliary axle applications and for rapidly exhausting air suspensions. When plumbed into the gladhand or parking brake line, it automatically exhausts the air suspension on cue. It can also be operated via a manual switch such as part number 90054088. Cross-referenced under a wide range of industry numbers including MD90554615, HDX90554615, and 90554615-MD. Call us to confirm proper fit for your application.
Features
Port A: 1/4" NPT; Port B: 1/8" NPT
Remote-mounted design suits any chassis location
Activated by applied pilot pressure
Typically used on auxiliary axle applications or for rapid air suspension exhaust
When connected to the gladhand or parking brake line, automatically exhausts the air suspension
Compatible with manual switch operation (reference part 90054088)
Tech Specs
- Port A: 1/4" NPT
- Port B: 1/8" NPT
