The Donaldson P782108 is a genuine primary radialseal air filter designed for robust performance in demanding agricultural, construction, and industrial applications. This high-efficiency filter, also known as Donaldson P181057, features a cellulose media type, ensuring 99.9% filtration efficiency. It is engineered to protect engines from harmful contaminants, extending engine life and maintaining optimal performance. Key dimensions include an outer diameter of 206 mm, an inner diameter of 104 mm, and a length of 335 mm. It is a direct equivalent for Caterpillar 6P7821 and fits a wide range of Caterpillar, John Deere, Komatsu, Massey Ferguson, and Volvo machinery.