Elevate the performance of your heavy-duty engines with the Donaldson primary air filter. Crafted with high-efficiency cellulose media, it excels across a wide spectrum of demanding applications. The filter is fortified with corrosion-resistant, coated steel liners, providing robust support to the media for maximum airflow and durability. Thanks to the innovative Pleatloc feature, uniform pleat spacing is maintained, preventing media from bunching and ultimately extending the filter's service life. This filter complies with ISO 5011 standards, a testament to its quality and effectiveness. With a length of 10 inches, inside diameter of 4.84 inches, and outside diameter of 9.22 inches, it's precisely engineered to meet the rigorous demands of heavy-duty engine systems.