The Donaldson primary air filter is engineered with high-efficiency cellulose media, ensuring top-notch performance across a diverse range of heavy-duty engine applications. Its corrosion-resistant, steel liners with a special coating not only provide robust support to the media during operation but also work to optimize airflow. The innovative Pleatloc feature plays a pivotal role in maintaining uniform pleat spacing, preventing media bunching, and ultimately extending the filter's service life. This filter adheres to ISO 5011 standards, attesting to its quality and reliability. With a length of 19.38 inches, an inside diameter of 5.84 inches, and an outside diameter of 11.03 inches, it's tailored to deliver exceptional performance.