AAR M-1003 Certified Truck Component Manufacturing

Columbus Castings is AAR M-1003 certified to manufacture AAR specification M-976 and M-210 Truck components.  Specifically, we produce the 3-piece Barber S-2-HD Truck Side Frames and Bolsters in 70, 100, and 125 ton capacity for use in 286,000 pound capacity applications.   The long life expectations, superior ride quality, and the ease of maintenance make the S-2-HD a value leading truck assembly.