Introducing the Donaldson primary air filter, engineered with precision to elevate the performance of heavy-duty engines. Its high-efficiency cellulose media is adept at tackling a wide spectrum of engine applications, ensuring optimal functionality. The filter boasts corrosion-resistant, coated steel liners that provide crucial support during operation, maximizing airflow efficiency. The innovative Pleatloc feature plays a pivotal role in maintaining uniform pleat spacing, preventing media from bunching and thereby extending its service life. Compliant with ISO 5011 standards, this Donaldson filter is a testament to quality and reliability. With a length of 11.25 inches, inside diameter of 3.08 inches, and outside diameter of 5.31 inches, it's a precision-engineered solution for your engine needs.