The Donaldson P130770 is a genuine outer air filter element designed for heavy-duty machinery. Featuring a radialseal style and cellulose media, this primary air filter provides 99.9% efficiency, protecting engines from harmful contaminants. It measures 257 mm in outer diameter, 147 mm in inner diameter, and 387 mm in length, weighing approximately 1.41 kg. This filter is a direct replacement for various OEM part numbers, including Caterpillar 9W1806 and John Deere AT175371.