Description Fleetguard FF5317 is a spin-on diesel fuel filter with cellulose media and 5 micron filtration, designed to protect heavy-duty fuel systems from fine particulate contamination. It features 1-3/8-16 UNS-2B threads, approximately 309 mm (12.17 in) overall height and 5.34 in outside diameter, with gasket dimensions matched to Caterpillar 1R0755 installations. The FF5317 cross-references with Baldwin BF7639, Donaldson P551316, Cummins 4068246, WIX 33685, Luber-Finer LFF4102, Fram P8430, Hastings FF1090 and related equivalents, making it suitable for Caterpillar and Cummins diesel engines in trucks, construction, industrial, agricultural and marine equipment where these part numbers are specified.