Scott-
I would have liked to get a rebuild kit, but couldn't find one.
The call to Alretta was in search of parts.
My local guy also noted that parts don't seem available, only remanufactured units.
I made the decision to seize the opportunity to purchase and took the off-the-shelf item. At $120 fewer dollars than Alretta and no shipping it was a no-brain choice.
If this unit works out I'll post contact information for others to pursue in case they need a new hydrovac unit too.
-John