The Massey Ferguson 1635989M91 is a genuine OEM inner air filter designed to provide superior filtration for a wide range of Massey Ferguson agricultural tractors and industrial machinery. This essential component protects the engine from harmful contaminants, ensuring optimal performance and longevity. Measuring 260 mm in height, with an outer diameter of 76 mm and an inner diameter of 60 mm, this filter is engineered to precise specifications for a perfect fit and reliable operation. It is compatible with numerous MF models, including various series like the 100, 200, 300, 400, 500, 600, 3000, 3100, 3600, 4200, 4300, 6100, 6200, 8100, and 8200 series tractors, as well as several industrial tractor models.