Elevate your engine's performance with the Donaldson primary air filter. Crafted with high-efficiency cellulose media, it excels across a broad spectrum of heavy-duty applications. The filter's corrosion-resistant, steel liners play a vital role in supporting media during operation, ensuring maximum airflow efficiency. Thanks to the innovative Pleatloc feature, pleats remain uniformly spaced, preventing media bunching and promoting an extended service life. Compliant with ISO 5011 standards, this filter meets industry-approved benchmarks. With a length of 12.50 inches, inside diameter of 4.95 inches, and outside diameter of 6.10 inches, it's engineered for a precise fit.