No cap to Sedra - Where can I buy one?

[Burks]

I bought this pump a few weeks ago thinking it'd come with all the parts. Most powerheads come with the cap.....sort of doesn't work well without it. Anyways, mine came without it.

 

Any idea where I can get one? It's a Sedra 2500. And what is the technical term to search for when looking for it?

 

 

Upon further inspection, there is no shaft in the pump either. Just the magnet and impeller. I take it I need to order:

 

O-ring

Ceramic Shaft

Cap

Rubber bushing

 

Right?