Introducing the Donaldson primary air filter, a reliable solution for heavy-duty engine applications. Crafted with high-efficiency cellulose media, this filter excels across a wide spectrum of demanding conditions. Its corrosion-resistant, coated steel liners provide robust support to the media, ensuring maximum airflow efficiency. The innovative Pleatloc feature maintains uniform pleat spacing, preventing media from bunching and promoting an extended service life. With dimensions of 12.01 inches in length, 3.48 inches inside diameter, and 6.09 inches outside diameter, this filter meets ISO 5011 standards, ensuring quality and performance for your engine.