Abstract: A spark plug tool device loosens and tightens a spark plug. The device includes a tubular member having a first end, a second end and a perimeter wall attached to and extending between the first end and the second end. A socket extends into the first end of the tubular member and receives a spark plug therein for loosening and tightening the spark plug. A neck is coupled to and extends from the second end of the tubular member. A handle is coupled to a distal end of the neck with respect to the tubular member. A breaker bar is coupled to the handle.