P603577 is an elliptical main-stage air filter. It is suitable for 2003-2007 Ford 6.0L Power Stroke diesel engines (models such as F-250/F-350/F-450, etc.). It adopts a honeycomb filtration technology, with a filtration efficiency of 99.95% (in accordance with ISO 5011 standard). It features low resistance and long lifespan, and is an original factory direct-install replacement part.
