The Case-IH AF1905M is a genuine OEM primary air filter designed for Case-IH JX series and Farmall A series agricultural tractors. This filter effectively removes dust, dirt, and debris from the engine's air intake, protecting critical engine components and maintaining optimal performance. With an outer diameter of 127 mm, an inner diameter of 76 mm, and a length of 254 mm, it ensures a precise fit and reliable operation. It replaces OEM part numbers 84476906, 87300180, and 87300181.