Follow the links below for parts listings for your pump.
AR Pumps
http://www.arnorthamerica.com/pumpbd.html
CAT Pumps
http://www.catpumps.com/pages/datasheets.cfm?PDFType=PUMP
Comet Pumps
http://cometpump.com/MB_Pompe.pdf
General Pumps
http://www.generalpump.com/SpecPDFs.html
Udor Pumps