A new old stock Starter Motor Brushes set CI reference 665/666 = FORD reference 18/11057 for the following vehicles:
AMERICAN FORD V8 1932-44
CANADIAN FORD V8 1939-46
Mercury 8-cylinder 1949-54
Other 8-cylinder 1955-56
Some 6-cylinder 1949-58
Approx brush size 0.767" wide, 0.487" high, 0.347" deep