Unfortunately, no one knows what they are. Since there are no perfect leaders, it is hard to build a good leadership model, that is why there are hundreds of them. A love of self-improvement for themselves and their followers. This love makes them good coaches and mentors.
Followers expect their leaders to be enthusiastic about their work.
Extrinsic motivators come from the outside. For example, one reason that I go to work is that I need to make a living in order to survive. Intrinsic motivators come from within. For example, another reason that I go to work is that I get a great deal of satisfaction when I accomplish a difficult task. Good leaders set and achieve goals that allow them to get a healthy balance of both motivators.