Description Fleetguard FF5782NN is a spin-on diesel fuel/water separator with NanoNet filtration media for high-horsepower engines. It is used on Cummins QSK MCRS engines (QSK19, QSK38, QSK45, QSK50 and QSK60) and on mining, construction and power-generation equipment from OEMs including Komatsu, Hitachi, Liebherr, Atlas Copco, John Deere, Kawasaki, Terex and Euclid. The filter has a spin-on canister with 2 1/4″-12 UN thread, approximately 10.5 in overall length and 4.7 in maximum diameter.