The right HVAC system components will make all the difference. Get this discount Mars 09931 Shaded Pole Refrigeration Motor, 1/15 HP 230V 3.3 DIA BOHN REPL. Chat us up if you have questions about this part or the installation process. A shaded pole motor is a single-phase induction motor that dates back to the 19th century. Refrigeration motors use a pump to move cold refrigerant gas through the system. Sleeve Bearing. Original OEM-type mounting. Original OEM-type wiring. Specially selected low temp oil. Full flatted oxide shaft.