The Case-IH AF331 is a high-quality primary air filter designed to provide superior engine protection for various Case-IH agricultural machinery. This robust filter effectively captures dust and contaminants, ensuring a clean air supply to the engine for optimal performance, fuel efficiency, and extended engine life. It is a direct replacement for OEM part numbers 182604A1, 182604A2, 182604A3, and 182604A4, fitting a range of Case-IH models including the 7100, 8900, and MX series tractors.