The Kubota W21CKT4991 is a genuine OEM air filter designed to provide superior filtration for various Kubota B, L, and MX series tractors. This essential component protects the engine from dust, dirt, and debris, ensuring optimal performance and longevity. It measures 203mm in length, 102mm in width, and 102mm in height, with a weight of 0.36 kg. Regular replacement maintains engine efficiency and prevents costly damage.