90915-10004 Still available
If your local Toyota Dealer isn't giving you any 10004 love, try:
In their part number field, search for 90915-10004A
and you'll get the right filter. Just phoned, talked with parts guy there (Ross or Russ?), and he confirmed they have them, reinforced that you use the "A" in the part number, and they won't disappoint you by sending a YZZF1 filter. He even asked, "Are you a Lotus guy?", so he knows why we're seeking them.
Mechanical sympathy makes us better mechanics and better owners. Ducati dry clutches .... I just don't get it.