The Case-IH AF26397 is a genuine OEM primary air filter designed to provide superior filtration for Case-IH agricultural machinery. This filter is crucial for protecting the engine by effectively removing dust and contaminants from the air intake. It is commonly used in various Case-IH combine models, cotton pickers, and sprayers, ensuring optimal engine performance, efficiency, and longevity. The AF26397 is a direct replacement, guaranteeing proper fit and reliable operation.