I love everybody telling me that WIX and NAPA filters are so great, they cannot even get the right cross for the Kubota BX fuel filter. The Kubota one is an inline filter with treated paper that blocks water, the WIX/ NAPA 33973/ 3972 is nothing more than a 50 micron screen in a plastic container, how am I going to know if their oil filter they cross for is one really made for the diesel engine or just the motorcycle one that is the same size and threads but only half a filter inside the can as many of the other crosses are for the same application. Both my Kubota dealer and my tractor parts dealer for the Massey can get very close or sometimes beat the prices that the NAPA shop charges for their filters and I am not worried about how close or far away the specs of their "will fit" and OEM filters are. You should of seen what the owner of NAPA did when the other parts house in town became an Oreilly's first bad mouthed and raised a stink about being the only one locally owned and then sold out a year later to the larger chain of NAPA franchises . NAPA DOES NOT MEAN A BETTER DEAL David Kb7uns