This is a new old stock air conditioning compressor clutch and pulley assembly. The engineering number for the part is C9AA-2981-D, -D1, or -D2, though I don't see the number marked anywhere on the part. The original Ford service part number is C9AZ-2884-D. It's correct for the following applications:
This clutch and pulley assembly requires a C9AZ-2987-A field coil.