The Case-IH AF25311 is a genuine OEM primary air filter designed to provide superior filtration for Case-IH Axial-Flow combines. This essential component protects the engine from harmful contaminants, ensuring clean air intake for efficient operation and extended engine life. With an outer diameter of 254 mm, an inner diameter of 139.7 mm, and a length of 457.2 mm, this filter is engineered for a precise fit and reliable performance in various Case-IH combine models.