The Case-IH AF25621 is a genuine primary air filter designed to provide superior engine protection by effectively removing contaminants from the air intake system. This high-quality filter ensures optimal engine performance and longevity for compatible Case-IH JX and JXC series agricultural tractors. With an outer diameter of 152.4 mm, an inner diameter of 95.25 mm, and a length of 304.8 mm, this filter is a direct OEM replacement. Regular replacement with this OEM part helps maintain fuel efficiency and prevent costly engine damage.