Standard equipment for PIERCE winches. Runs at 1.5 hp. The motor is composed of high-temperature components, fore and aft ball bearings, and a 3/4" shaft cut for a woodruff key. The two parallel posts are fields while the post in the rear is the armature. This 12V winch motor (three posts) can be used as a replacement worm drive winch motor in the following brands: PIERCE Ramsey Viking Desert Dynamic Thor