The Kubota W21CKT3631 is a genuine OEM air filter designed to provide superior filtration, protecting the engine from harmful contaminants and ensuring optimal airflow. This high-quality filter is essential for maintaining engine health and extending the lifespan of various Kubota B, BX, L, LX, RTV-X, and Z series tractors and utility vehicles. It features an outer diameter of 95mm, an inner diameter of 51mm, and a total height of 180mm.