The Kubota 3B99400990 is a genuine OEM oil seal designed for critical sealing applications in a wide range of Kubota engines and equipment. This high-quality component ensures optimal fluid retention and prevents contamination, contributing to the longevity and efficient operation of your machinery. With an inner diameter of 25 mm, an outer diameter of 40 mm, and a thickness of 7 mm, it provides a precise fit for compatible models.