Pressure Vacuum Motor Installation

I need to replace my Pressure Vacuum Motor (Smith B625).  Besides the Motor what other parts will I need to connect a new motor i.e. seals etc.  My pool pump is a Jandy JHPU pre 2005.

Hello Larry12 - The B625 motor was typically used on a Polaris booster pump. Is that what you have? How old is the booster pump (pressure vac pump)?