A new Generator Fan Pulley that I got at an auction of vintage car parts.  This is stamped "G443" and is for use with 5/8" wide belts

I don't know if this is OEM or aftermarket but it is, or is equivalent to, Ford part no. 8BA-10130-A and is for use on:

• FORD CARS  (1949-51: Models with 239" Engines and Generators 8BA-10002-B, 8BA-D, 8EL-10002-B, and FAA-10002-A.  NOTE - this is NOT used on 1949 models requiring high generator output at low speeds.  For that application you will need pulley 8BA-10130-C)
  
• MERCURY  (1949-50: Models with Generator 8BA-10002-A)

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