A FS19823J AI Separator, Fuel Water, Spin On (QTY 1) Fleetguard Fuel Water Separator FS19824 Seapower Marine Fuel Separator Spin On FS19861 Engine Fuel Filter Water Separator Fs19822 F101 BS 001 Fleetguard. One New Aftermarket Separator, Fuel Water, Spin On (QTY 1) 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.