Up for Buy-It-Now is a new old replacement stock oil pump gear, Niehoff part number 105A.  According to my Niehoff Manual, this is used on the following models and years:

1928 Durant..R2 or 65, 55
1928 Durant...M2
1929 Durant M4 & 40
1929 Durant..60

  The gear has 16 teeth and is in brand new, never used condition. It is free of any dents or damage.   I have provided picture number 6 to show the gear and verify the application.  The other gear shown is not included with the gear shown above.  Cast on the gear is 105A.
    Please feel free to E-mail me questions.  International bidders are always welcome.  Thanks for looking!!!