Introducing the Donaldson primary air filter, a reliable choice for heavy-duty engine applications. Its high-efficiency cellulose media ensures consistent performance across a wide spectrum of scenarios. The corrosion-resistant, coated steel liners provide vital support during operation, maximizing airflow efficiency. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and promoting an extended service life. With precise measurements of 7.44 inches in length, 2.48 inches in inside diameter, and 4.09 inches in outside diameter, this filter adheres to ISO 5011 standards.