Experience superior engine protection with Donaldson's primary air filter. Engineered with high-efficiency cellulose media, it excels across a diverse range of heavy-duty engine applications. The corrosion-resistant, steel liners coated with a protective layer ensure optimal airflow and support the media during operation. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media bunching and promoting an extended service life. This filter meets ISO 5011 standards, a testament to its quality and performance. With a length of 12.32 inches, inside diameter of 4.65 inches, and outside diameter of 8.9 inches, trust Donaldson for reliable engine filtration.