12000 lb Front Axle, 21000 lb Rears, 32000 lb GVWR, 11R22.5, Spring Suspension, 160 in Wheelbase, Hydraulic System, Auxiliary Engine, Mechanical Broom Sweeper, Dual Controls, Front Spray Bar, 62 in Under Body Broom, Gutter Brooms, Material Elevator, Water System, Hydraulic Dump