Stupid question, are you getting the front hitch and mid-PTO to go with it?
The BX54xx blowers have an outboard shoe, much different than my BX2750D.
From what I understand, they were a great improvement over the the BX2750 series.
That's a good thing. I think the shoes alone are a good thing. I had shoes on the front of a JD425 that were much better than the shoes on my Kubota blower.
For what it's worth, you can see the parts diagrams of your blower here, just agree to legal, then put in your BX5455HD model #
Kubota Tractor Corporation - Illustrated Parts List (kubotausa.com)