Introducing the Donaldson primary air filter, meticulously engineered to excel in a diverse range of heavy-duty engine applications. Its high-efficiency cellulose media ensures top-tier performance, meeting the demands of even the most challenging environments. Supported by corrosion-resistant, coated steel liners, this filter provides crucial support during operation, ultimately maximizing airflow. The Pleatloc feature sets this filter apart, ensuring uniform pleat spacing and preventing media from bunching, thereby extending its service life. In strict adherence to ISO 5011 standards, this filter is a testament to quality and reliability. With precise measurements of 16 inches in length, 4.28 inches inside diameter, and 7.64 inches outside diameter, it's engineered for precision and efficiency.