The Case IH AF25857 is a genuine OEM primary air filter designed to provide superior engine protection for a wide range of Case IH combines. This filter effectively captures dust, dirt, and debris, preventing harmful contaminants from entering the engine and maintaining optimal airflow. Engineered to meet original equipment specifications, it ensures reliable performance and extends engine life across various Case IH combine models including the 1620, 1640, 1644, 1660, 1666, 1680, 1688, 2144, 2166, 2188, 2344, 2366, 2388, 2577, 2588, 5088, 6088, and 7088 series.