Description Fleetguard LF670 is a full-flow spin-on lube oil filter for heavy-duty diesel engines, using cellulose media with 95% efficiency at 30 microns and measuring 249.2 mm in overall height with a 116.08 mm largest outside diameter. It features a 1 1/2-12 UNS-2B thread and cross-references Cummins OEM part numbers 3313279 and 3889310, commonly fitted to Cummins KTA19, KTA38, NT855 and other industrial, on-highway and generator set engines that require an LF670-type full-flow lube filter.