Lateral deflectors for a pivoted transverse door of a hopper railcar configured for attachment on lateral sides of the pivoted transverse door with each of the lateral deflectors having a mounting base configured to be mounted parallel to the pivoted transverse door and a side face configured to extend above an interior facing surface of the pivoted transverse door upon which laden flows with the pivoted transverse door in an open position, wherein each lateral deflector includes a mounting base parallel to the pivoted door to which the lateral deflector is coupled with a radius end configured to curve around the lateral side of the pivoted door and wherein the side face of each lateral deflector extends from the radius end of the mounting base and at a position above the mounting base is angled laterally away from the mounting base and from the interior facing surface of the pivoted door to which the lateral deflector is coupled between 65 and 85 degrees, and wherein with each pivoted door in the closed position a side face of each of the deflectors coupled to the pivoted door is configured to be adjacent an outer surface of one of a pair converging side sheets and not extending through a hopper opening.