Sheave:Blt,Flt Idl,1/2",3-1/4" is an OEM-compatible replacement component used with Rapid Pak equipment. It is identified by Rapid Pak part number 24133.
Diaphragm:55X400Cm,2-1/8X15-3/4 is an OEM-compatible replacement component used with Provisur equipment. It is identified by Provisur part number 603039.