The Kubota W21CKT3438 is a genuine OEM inner air filter designed to provide superior engine protection for various Kubota L-Series and MX-Series tractors. This essential component effectively filters contaminants from the air intake, ensuring optimal engine performance and longevity. Engineered to exact Kubota specifications, it features an outer diameter of 63.5 mm, an inner diameter of 47.6 mm, and a length of 254 mm, ensuring a perfect fit and reliable operation in models such as L3301, L3901, L4701, L4060, L4760, L5060, L5460, L6060, MX4800, MX5200, MX5400, MX5800, and MX6000.