The Donaldson HBL2769, often cross-referenced as P181039, is a genuine primary air filter designed to deliver superior engine protection in demanding agricultural and construction environments. This high-efficiency filter effectively captures airborne contaminants, ensuring clean air intake and extending the lifespan of critical engine components. With an outer diameter of 203.2 mm, an inner diameter of 107.95 mm, and a length of 355.6 mm, this robust filter is a vital component for maintaining optimal engine performance across a wide range of heavy machinery.