Elevate the performance of your heavy-duty engine with the Donaldson primary air filter. Its high-efficiency cellulose media excels in a diverse range of applications, ensuring thorough filtration. The filter is equipped with corrosion-resistant, coated steel liners that provide sturdy support to the media, optimizing airflow for enhanced engine operation. The Pleatloc feature ensures consistent pleat spacing, preventing media bunching and extending the filter's service life. Measuring 12 inches in length, with an inside diameter of 5.31 inches and an outside diameter of 7.92 inches, this filter adheres to ISO 5011 standards, assuring you of its quality and reliability.