New old stock. This has been in a closet in my garage for about 25 years. 1966 1967  Ford Mustang,  Falcon, Fairlane, Ranchero, Mercury Comet, Cyclone cougar, maybe others.  289 2V-4V-HIPO THERMACTOR EMISSIONS-SMOG PUMP PULLEY.  For Cars Without Air Conditioning.  This is an ORIGINAL FORD PART.   The Pulley is marked [FoMoCo] and has a C6OE-9B447-B ink part number.  Measures approx 4 1/16″ Overall dia. I have 4 of these. THE LISTING IS FOR QTY 1 but I have 3 more that I will also list.