The Kubota W21CKT4388 is a genuine OEM oil filter designed to provide superior filtration and protection for Kubota engines. This essential maintenance part helps ensure optimal engine performance and longevity by removing contaminants from the engine oil. It is compatible with a wide range of Kubota compact tractors, utility vehicles (RTV-X series), skid steer loaders (SVL series), and zero-turn mowers (Z series).