Introducing the Donaldson primary air filter, meticulously engineered to deliver top-notch performance across a broad spectrum of heavy-duty engine applications. Crafted with high-efficiency cellulose media, it stands as a testament to superior filtration. The corrosion-resistant, steel liners, coated for added durability, lend unwavering support to the media during operation, ensuring maximum airflow efficiency. The innovative Pleatloc feature sets it apart, maintaining uniform pleat spacing and preventing media from bunching up, thereby extending its service life. This filter complies with ISO 5011 standards, ensuring quality and reliability. With a length of 11.03 inches, an inside diameter of 8.38 inches, and an outside diameter of 12.74 inches, it precisely meets industry specifications.