
Article
A‑4740 Air Filter Regulator — The “Purification and Pressure Stabilization Guardian” of Eaton Transmission Pneumatic System
The A-4740 air filter regulator is the first line of defense in the Eaton transmission pneumatic system, combining filtration, pressure regulation and drainage in one critical component. It installs between the air compressor and other valves to protect the entire system.
Without the A‑4740, moisture causes rust and freezing; dust wears seals and creates leaks; unstable pressure leads to weak shifts, synchronizer shock or gear disengagement. The A‑4740 uses multi‑stage filtration (≤5μm), steady pressure control and reliable drainage to deliver clean, dry, stable air.
Maintenance is simple: drain weekly, inspect filter monthly, replace seals yearly. The Tritenco A‑4740 uses high‑precision springs and corrosion‑resistant housing for accurate regulation and long life, making it the true guardian of your Eaton pneumatic system.
Shop the A-4740 air filter regulator and other parts from our lineup. A reliable air filter regulator is key to preventing premature wear in your transmission.










