Ya the Napa filter number 1021 will work. I had the same trouble with my F-68. When I first went to pick up the filter they gave me one that looked like the one you got. So I had to ask Bridgeford what the number was and the one he gave worked. Comes with new seals and everything. When I asked what the filter was for the guy said for an old Case or MF tractor Things back in the day were good and universal, I guess. Hope this helps!