Elevate your engine's performance with the Donaldson primary air filter, featuring high-efficiency cellulose media designed to excel across a broad spectrum of heavy-duty engine applications. The filter is fortified with corrosion-resistant, coated steel liners that provide robust support during operation, optimizing airflow for enhanced efficiency. The innovative Pleatloc feature ensures consistent pleat spacing, preventing media bunching and extending the filter's service life. Compliant with ISO 5011 standards, this filter boasts a length of 9.55 inches, an inside diameter of 5.26 inches, and an outside diameter of 10.87 inches, making it a reliable choice for top-notch filtration.