Fleetguard AF291 Air Filter – OEM-Grade Primary Engine Intake Filter

The Fleetguard AF291 Air Filter is a premium primary intake filter designed to deliver reliable protection, superior filtration, and long service life for heavy equipment and engine systems. Engineered by Cummins Filtration, this filter meets the rigorous standards required by OEMs and is suited for use in a variety of industrial, agricultural, and heavy machinery applications. shop.cummins.com

This AF291 filter features a robust design with an outside diameter of ~168.656 mm (6.64 in) and a length of ~77.368 mm (3.046 in). Amazon+1 Its compact size and precise tolerances make it ideal as a drop-in replacement for vehicles or machines specifying this part number. shop.moderngroup.com+1

When installed, the AF291 helps remove airborne particulates, dust, and contaminants before they can enter the combustion system, supporting cleaner airflow, smoother engine operation, and extended longevity. mycnhstore.com+1 It is built to endure the harsh conditions seen in field use—vibration, temperature changes, and particulate exposure—while maintaining effective sealing to prevent unfiltered air from bypassing the media. mycnhstore.com+1

To use this filter effectively, confirm that your engine or equipment specifies the AF291 or equivalent filter, then remove the old filter, ensure the housing is clean, install the AF291 in the correct orientation, and reseal the housing. With this filter in place, you’re adding a high-quality layer of protection to maintain cleaner intake air, reduce wear, and support dependable engine performance over time.