Description Fleetguard LF9050 is a lube combo spin-on oil filter that combines full-flow and bypass filtration in a single canister for heavy-duty diesel engines. It features a steel spin-on housing with StrataPore synthetic media, M90×2-7H thread, approximately 297 mm overall length and 120 mm outer diameter. Common applications include Cummins QSK series and other Cummins, Komatsu, Hitachi and Caterpillar engines in construction, mining and industrial equipment, and it cross-references Cummins 4920071, 4016413, 4016657, Atlas Copco 56899346, Baldwin BD7176 and Donaldson P554560.