Well I took a chance on ordering a different part number on ebay for $200 less. It appeared very similar in pictures but I received it today in the mail and no go. The shaft diameter was somewhat smaller so now I guess I will order the above from Kubota. My local dealer quoted me ~$340 and if it didn't happen to match I would be have to pay a shipping/restocking fee. His restocking fee was quite a bit cheaper than some of the online quotes I've seen.
More to come