The Kubota W21TFD0409 is a genuine OEM air filter designed to provide superior filtration for various Kubota B, BX, L, and LX Series tractors, as well as RTV-X utility vehicles. This essential engine component effectively captures dust, dirt, and debris, preventing them from entering the engine and maintaining optimal performance and longevity. Measuring 114.3 mm in length, 114.3 mm in width, and 127 mm in height, and weighing approximately 0.227 kg, this filter ensures a precise fit and reliable operation.