The Case-IH AF4509 is a genuine OEM air filter designed to provide superior filtration for Case-IH agricultural equipment. This primary air filter effectively captures dust, dirt, and debris, preventing harmful contaminants from entering the engine and ensuring clean air intake. Regular replacement with the AF4509 helps maintain engine efficiency, prolong engine life, and optimize fuel economy in compatible Case-IH models. Engineered to meet original equipment specifications for fit and function.