The Donaldson P771524 is a high-performance RadialSeal™ primary air filter designed for demanding applications. Featuring advanced cellulose media, it provides 99.9% filtration efficiency (ISO 5011) to protect engines from harmful contaminants. With an outer diameter of 247.65 mm, an inner diameter of 136.65 mm, and a length of 335.28 mm, this robust filter ensures optimal airflow and extends engine life. It is a direct replacement for various OEM part numbers, including Caterpillar 1338552, John Deere AT175908, Komatsu 6001855100, Massey Ferguson 3901407M1, and Volvo 11033996.