A.O. Smith F-391418-61 is a 3-phase AC motor in a T118 frame rated at 0.5 horsepower. York Controls lists the part as F-391418-61 and describes it as refurbished, with the catalog entry showing “F39141861-Refurbished.” Some listings also note that the back cover is missing for this unit. Identified as an A.O. Smith component, this motor is positioned as a spare/refurbishment option for equipment designed to accommodate a T118 3‑phase motor.
