If you have any old service records / invoices, the filter part numbers should be on them. When you buy them, buy extra fuel filters (and carry them in the MH with you) in case you get a bad batch of diesel.
Bill
Nodwell RN110 out moose hunting. 4-53 Detroit, Clark 5 spd, 40" wide tracks, 10:00x20 tires, 16,000# capacity, 22,000# weight. You know the mud is getting deep when it's coming in the doors.