Elevate the performance of your heavy-duty engines with the Donaldson primary air filter. Crafted with high-efficiency cellulose media, it excels across a broad spectrum of demanding applications. The corrosion-resistant, steel liners provide robust support to the media, ensuring 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 adheres to ISO 5011 standards, a testament to its quality and effectiveness. With a length of 8 inches, inside diameter of 2.62 inches, and outside diameter of 5.25 inches, it's tailored to meet the stringent requirements of heavy-duty engine systems.