I can't be sure that this is the part you looking for but this is what I came up with:
SEPARATOR, TRANSMISSION OIL(MTM) 33176-30020         $40.25

Hmmm it doesn't have any dealings with oil so that is my hesitation. I'll take it in to the dealer and see what it comes up with though. They will have a blow up showing what it is and if it is correct or not. I didn't think to try the Auto LiveOak. That is a good call as well!