PA1904 is Baldwin Filters’ inner air element for heavy‑duty filtration systems, designed to sit inside Baldwin’s outer filter housings to deliver clean intake air in demanding commercial applications. As the replaceable inner element, it completes Baldwin’s air‑filtration assembly for heavy‑duty trucks and equipment by trapping particulates before they reach the engine. The PA1904 features an axial seal to secure a tight fit within compatible housings, helping prevent unfiltered air bypass, and is referenced in Baldwin cross‑reference literature alongside PA3832. This component is part of Baldwin’s rugged, industrial air‑filtration lineup engineered for tough service.
