3 3/8" Diameter Motors, Multi Purpose Replacements These Shaded Pole motors are continuous duty, air over motors. They fit many applications and have a 4 bolt mount and longer shaft, both which can be modified for different uses. These motors fit products manufactured by NuTone, Broan, Fedders, McQuay, Bohn, Witt Coil, American Standard, Miami Carey, Duotherm, Coleman, Phil Rich, Chrysler and others