Michigan trailed by 10 at two different points in the second half, but Moe Wagner had the game of his life as he sent the Wolverines through to the National Championship Game with a powerful 24-point, 15-rebound performance.
With the 69-57 win, the Wolverines move on to Monday night's championship game against the winner of tonight's Villanova and Kansas showdown.
Michigan has not won a national championship since 1989, the school's lone title.
It was all Wagner and Charles Matthews (17 points) for Michigan through the first half and beyond, but Duncan Robinson and Jordan Poole came up with a couple of timely baskets to help put the Wolverines over the top late in the second half.