The Fisher and Western 20136 is a genuine 12-volt DC snow plow motor that serves as a direct replacement for various Fisher, Western, Prestolite, and Ametek units. This fully insulated motor operates with a 1.2kW (1.61 HP) power output and a clockwise rotation. With a 4.492-inch OD, a 0.63-inch slotted shaft, and 5/16-18 terminal connections, it's designed for horizontally mounted plow pump and reservoir assemblies.