Correct 1/2 year 1600 pump- Shaft protrudes thru the metal 4-blade fan for 67.5 only.
 
Gaskets and Fan fasteners included.  
 
Choose if you want a new heater nipple installed or not.
 
Careful what you buy on Ebay, there are all kinds incorrect pumps out there.  
 
Cast Impeller- excellent quality pump, Not GMB, or other ebay junk!