Discover the Donaldson primary air filter, engineered to deliver top-notch performance across a diverse range of heavy-duty engine applications. Crafted with high-efficiency cellulose media, it ensures optimal filtration. The corrosion-resistant steel liners, coated for added durability, provide crucial support during operation while maximizing airflow. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and thereby extending its service life. This filter adheres to ISO 5011 standards, assuring you of its quality and reliability. With precise dimensions of 27.44 inches in length, 6.89 inches inside diameter, and 9.50 inches outside diameter, this filter is designed to meet your engine's needs.