Elevate your engine's performance with the Donaldson primary air filter. Crafted with high-efficiency cellulose media, it excels across a diverse range of heavy-duty engine applications. The corrosion-resistant, steel liners, coated for added durability, provide crucial support during operation, ensuring maximum airflow for optimal engine efficiency. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and promoting a longer service life. This filter meets ISO 5011 standards, boasting a length of 18.11 inches, an inside diameter of 7.51 inches, and an outside diameter of 11.9 inches.