Elevate your heavy-duty engine's performance with the Donaldson primary air filter. Crafted with high-efficiency cellulose media, it excels across a broad range of demanding applications. The filter features corrosion-resistant, coated steel liners that provide robust support during operation, ensuring maximum airflow. The Pleatloc feature maintains uniform pleat spacing, preventing media bunching and extending the filter's service life. With precise measurements of 22.01 inches in length, 9.49 inches in inside diameter, and 13.86 inches in outside diameter, this filter meets ISO 5011 standards.