It's PH3614
Check the related links for a compatibility guide from NAPA. Over 300 vehicles listed there.
It fits mostly trucks
Napa gold filter number 3011
There may be no cross reference to Napa from this brand filter. If your Napa dealer does not list the filter there is none. You may be able to find a Napa filter by using the model of the Kubota or the engine. More information is better.
The Napa filter is 1036 , The wix filter is 51036, Both made by the Gard company.
wix 51358 napa 1358 same filter
Napa oil filter 1311 equivalent to Fram pH 7328
Napa's 1515 filter is Carquest's 85515 filter. Various Ford vehicle application.
Call a NAPA dealer
NAPA 21372
THE AIR FILTER IN QUESTION IS A NAPA SFI 26165JUST CALL YOUR LOCAL NAPA AND GIVE THEM THIS NUMBER, IT IS LISTED AS: $4.69