Elevate your engine's performance with the Donaldson primary air filter. Engineered with high-efficiency cellulose media, it excels across a diverse range of heavy-duty engine applications, ensuring reliable filtration. The corrosion-resistant, coated steel liners provide steadfast support to the media during operation, optimizing airflow for maximum efficiency. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and extending its service life. This filter proudly adheres to ISO 5011 standards, a testament to its quality and reliability. With a length of 12.99 inches, an inside diameter of 6.72 inches, and an outside diameter of 11.1 inches, it precisely fits industry specifications.