The Donaldson P770397 is a genuine primary outer air filter designed for effective air filtration in various agricultural and industrial applications. This high-quality cellulose media filter ensures optimal engine performance and protection. It features a radialseal design with an outer diameter of 178 mm, an inner diameter of 104 mm, and an overall length of 335 mm. This filter is a direct equivalent to Kramp P770397 and numerous OEM part numbers from brands like AGCO, Caterpillar, Claas, Deutz-Fahr, Fendt, John Deere, Massey Ferguson, and Valtra.