Elevate the performance of your heavy-duty engine with Donaldson's primary air filter. Crafted with high-efficiency cellulose media, it excels across a diverse range of applications. The corrosion-resistant steel liners, coated for added durability, provide vital support to the media during operation, optimizing airflow for maximum efficiency. The Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and thereby promoting an extended service life. This filter meets ISO 5011 standards, a testament to its quality and reliability. With a length of 11.04 inches, inside diameter of 3.68 inches, and outside diameter of 6.70 inches, Donaldson delivers a filtration solution you can trust.