C9OE-A radiator cooling fan. Multiple applications over the years. 4 blade fan, 14 inches in diameter. Not sure when these actually started being installed on the assembly line if at all. The C6AE-E version was used well into 1972 or later.
Ford part number C9OE-8600-A.
*Note - Excludes integral air conditioning.
**Note - 1973 there is a note in the MPC that states this fan may be marked C9OE-A.
Check out this interesting video where they test the efficiency of factory style and aftermarket fans. Spoiler alert: the clutch fans are the most efficient!
Check out this video