Introducing the Donaldson primary air filter, meticulously designed to enhance the performance of heavy-duty engines. Its high-efficiency cellulose media ensures reliable operation across a diverse range of applications. The corrosion-resistant, coated steel liners provide crucial support to the media during operation, optimizing airflow for improved efficiency. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and ultimately extending its service life. This filter meets ISO 5011 standards and proudly bears the trusted Donaldson brand, assuring quality and dependability. With dimensions of 15.94 inches in length, 3.46 inches in inside diameter, and 6.1 inches in outside diameter, it's precisely engineered to meet the demands of heavy-duty engines.