Elevate your engine's performance with the Donaldson primary air filter. Its high-efficiency cellulose media is tailored to excel across a wide spectrum of heavy-duty applications. The filter's corrosion-resistant, coated steel liners provide robust support during operation, ensuring maximum airflow for optimized performance. With the innovative Pleatloc feature, pleat spacing remains uniform, preventing media from bunching and extending the filter's service life. At 5.51 inches in length, with an inside diameter of 9.75 inches and an outside diameter of 12.62 inches, this filter adheres to ISO 5011 standards, reflecting Donaldson's commitment to top-notch quality.