Elevate your engine's performance with the Donaldson primary air filter. Crafted with high-efficiency cellulose media, it excels in a diverse range of heavy-duty engine applications. The corrosion-resistant steel liners not only provide robust support to the media but also play a vital role in maximizing airflow efficiency. Thanks to the innovative Pleatloc feature, you can rely on uniform pleat spacing, preventing media from bunching and thereby promoting an extended service life. Rest assured, this filter adheres to ISO 5011 standards, a testament to Donaldson's commitment to quality. With a length of 9.25 inches, an inside diameter of 4.09 inches, and an outside diameter of 6.09 inches, it's the trusted choice for your engine's air intake system.