Description
PILOT VALVE – 1/4" NPT REMOTE-MOUNT, AUXILIARY AIR SUSPENSION CONTROL
PART NUMBER(S):
Fleet Products: 90054079-G | OE: 90054079, 90554615 | Automann: 170.90054079
DESCRIPTION:
Model: 3-Way Pilot Valve
Vehicles: Universal fit for heavy-duty truck and trailer air systems
• Valve Type: 3-way pilot-operated remote exhaust valve
• Function: Controls air flow to auxiliary or lift axle systems; not for primary brake lines
• Port Sizes:
– Normally Open: 1/4" NPT
– Normally Closed: 1/4" NPT
– Suspension: 1/4" NPT
– Pilot Port: 1/8" NPT
• Actuation Type: Air-operated via pilot pressure
• Material: Die-cast zinc body for corrosion resistance
• Operation: Exhausts air automatically when pilot pressure is applied
• Mounting: Remote chassis-mounted; compatible with any vehicle frame location
• Performance: Precision engineered, tested to international durability standards
• Typical Use: Connected to gladhand or parking brake air line; rapidly exhausts air from suspension or lift axle
• System Fitment: Designed for heavy-duty air suspension systems and lift axle deployment control
Applications:
Used for rapid dump of air from auxiliary or lift axle air suspension systems. Automatically vents suspension when pilot air pressure is lost (e.g., trailer parked). Suitable for remote locations in any chassis configuration. Reliable performance in mixed-fleet operations and aftermarket retrofits.
CROSS-REFERENCE(S):
90054079, 90554615, 90054206, 90554206, 170.90054079, F243786, FS-6582, R304328, E-4328, N177, 03074
A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ All main ports are 1/4" NPT; pilot port is 1/8" NPT
✔ Do NOT use in brake system circuits
✔ Mount in any accessible chassis location with clearance for exhaust
✔ Connect pilot port to gladhand or parking brake signal for automatic operation
✔ Use appropriate sealants and verify thread engagement
✔ Always confirm valve orientation (NO/NC ports) prior to air-up
✔ For tech support or fitment validation, contact Fleet Products
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Warranty Information
