Abstract: A bench seat assembly for a passenger vehicle with a structural floor pan for supporting the bench seat, the bench seat including transversely spaced seat risers, fixed rollers mounted on the risers on each side of the bench seat, the rollers being arranged in pairs on each side of the bench seat in fore-and-aft disposition, the structural floor having fore-and-aft roller wells on each lateral side of the bench seat which receive the rollers when the bench seat is installed. A linear latch mechanism includes a user-actuated member that is coupled to a pair of seat latching hooks on each lateral side of the seat assembly adjacent the rearwardly positioned seat rollers. Anchor elements in the roller wells are engaged by a latch member as the rollers enter the roller wells.