Category:Animated letter A Wikimedia Commons Color Letter A Free Stock Photo Public Domain Pictures letter A New York City, USA Leo Reynolds Flickr Copper Square Letter A Leo Reynolds Flickr. One New Aftermarket Filter, Fuel, Cartridge (QTY 12) The advanced designs and high quality performance of Fleetguard heavy duty filters give customers the ultimate protection for their equipment. All Fleetguard products are engineered to meet or exceed OEM specifications and ensure engines and other systems achieve maximum life. Cummins Filtration covers the widest range filters in the heavy duty industry. More than a filter company, Cummins Filtration is the only media manufacturer that is part of an engine company. You can have total confidence in your purchase.