Standard mounting nut & knob. Operates Specialty Power Windows and other wiper motor supplier's motors. This switch will operate most newer wiper systems in vehicles having a single motor and 2 wiper blades. This does not have washers or delay speeds. Will work with most negative ground motors. The extra terminals normally connected for park. More typical round switch housing. Requires a 7/16"mounting hole.
NOTE: This switch will not work with newport engineering wiper motors!