Abstract: An apparatus for moving a slide-out compartment of a vehicle. The slide-out compartment is slidably received in an opening in the side of the vehicle. The apparatus includes a rotatable member having a distal end wherein the rotatable member is rotatably mounted to one of the slide-out or the opening so as to rotate the member about a horizontal axis parallel to a first plane substantially containing the opening. A drive rotates the rotatable member. A slotted bearing portion is mounted to the other one of the slide-out or the opening. Rotation of the rotatable member causes the distal end to bear against so as to slide along the slot in the bearing portion to selectively extend or retract the slide-out compartment relative to the vehicle. The rotatable member and drive may be mounted adjacent to the opening in the vehicle wherein the bearing portion is mounted in an end wall of the slide-out.