New old stock part.  See photos for detail and condition.

Description: Rotor
OEM(s): Ford
Voltage: 12
Low Output Amps: 100
High Output Amps: 100
Condition: New
Body OD: 4.472in / 113.6mm
Shaft OD (DE Bearing): 0.669in / 17mm
Shaft OD (Pulley): 0.669in / 17mm
Shaft OD (SRE): 0.669in / 17mm
Slip Ring ID: 0.693in / 17.6mm
Slip Ring OD: 1.236in / 31.4mm
Length: 6.492in / 164.9mm
Pole Thickness: 1.988in / 50.5mm
Shaft Threads: .669-20
Application: Ford Passenger Car Alternators