Brandon Jennings scored 27 points and Stephen 93, on Thursday.
Jon Leuer added 15 points, while Ersan Ilyasova had 14 for the Bucks, who have won two straight following a five-game skid. Head coach Scott Skiles picked up career win No. 400.
Greg Monroe finished with game-highs of 32 points and 16 boards in the Pistons' sixth straight loss. Brandon Knight chipped in 20 points and Tayshaun Prince had 13.