This Extra Large size quadrant with one arm is a nonreversing internal cable hookup. Arm #1 has a 1-1/4" black knob Body dimensions are (W 6 " X H 4") It has a full 3" of throw for that throttle body that needs the extra length.
This is also available with: A friction knob. A T-bar handle replacing the 1-1/4" black knob. A 2" access hole (see order accessories)
The friction knob is notated with -F. The T-bar handle is notated with TB.