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Humphrey · Air System
250V31021
In stock · ships from Knoxville
This is a manually operated 3‑way pneumatic directional control valve from Humphrey.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It uses a heavy‑duty detented lever that stays in the selected position to direct airflow between ports. The valve is commonly found in auxiliary air systems on heavy‑duty trucks and trailers, where it controls functions like air suspension, lift axles, or other air‑operated equipment. It is designed for inline or panel mounting and comes with a base bracket.
Part Number: 250V31021
HUMPHREY VALVE
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside air system
