The Case IH 85821059 is a genuine OEM primary air filter designed to provide superior engine protection for various Case IH and New Holland agricultural tractors. This high-efficiency filter, also cross-referenced as Donaldson P780523, features a cellulose media and precise dimensions including a 127 mm outer diameter, 70 mm inner diameter, and 254 mm length, ensuring optimal air filtration and engine performance. It is a direct replacement for original equipment, maintaining air intake cleanliness and extending engine life.