The D.L. & W. Work Caboose No. 6419 replaced the No. 2420 in 1948 and would be available until 1950. Lionel removed the searchlight and the trucks were now staple-end with magnetic couplers at both ends. This caboose has a GRAY painted die-cast flat car frame with heat-stamped lettering, tool boxes, steps at the four corners, two brake wheels and hand rails, a ladder, and a high smoke stack. There are no variations.