Introducing the Donaldson primary air filter, meticulously crafted to meet the demands of 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, enhancing airflow efficiency. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and extending the filter's service life. With precise measurements of 17.36 inches in length, 5.31 inches in inside diameter, and 7.92 inches in outside diameter, this filter adheres to ISO 5011 standards, ensuring quality and reliability for your engine.