Introducing the Donaldson primary air filter, a reliable solution for heavy-duty engine applications. Crafted with high-efficiency cellulose media, this filter excels in a diverse range of demanding environments. Its corrosion-resistant, coated steel liners not only provide robust support to the media during operation but also facilitate maximum airflow. The innovative Pleatloc feature ensures consistent pleat spacing, preventing media from bunching and extending its service life. Standing at 17.01 inches in length with an inside diameter of 5.28 inches and an outside diameter of 9.14 inches, this filter adheres to ISO 5011 standards.