I think the dealer is the only one with the hydros filters... or at least I haven't seen it posted.
For the diesel, I have an old note in my manual (can anyone confirm?)
You might see if your filter matches Mobil 1: M1-204 - you should be able to cross ref. that, if it does.
I think I got that from a thread... NOT sure if it's true.
Why not support your dealer?