The Case IH AF4137 is a genuine OEM primary engine air filter designed to provide superior filtration and protection for various Case IH agricultural machinery, including MXM, MXU, and Puma series tractors. This high-quality filter ensures optimal engine performance by preventing harmful contaminants from entering the air intake system. With an outer diameter of 262 mm, an inner diameter of 141 mm, and a length of 419 mm, it is engineered for a precise fit and reliable operation.