A seat assembly includes a cushion motor linked to a pinion gear for providing concentric rotation of a linkage through rotational engagement of the pinion gear with a sector gear. The seat assembly includes a seat back pivotally coupled to a seat cushion and a seat base adapted for mounting the seat assembly within an automotive vehicle. The linkage includes a front link and a rear link extending between the seat cushion and the seat base, wherein pivoting of the linkage moves the seat assembly between a plurality of positions. A recliner mechanism is operatively coupled to the front link for selectively allowing pivoting thereof, and the sector gear is fixed to the front link. Actuation of the cushion motor when the recliner mechanism is unlocked rotates the pinion gear, causing the sector gear to rotate for pivoting the linkage to move the seat assembly between the plurality of positions.