2019 John Deere R4023 Self-Propelled Sprayer - 4.5L FT4 engine, Gen 4 4600 CommandCenter™ Premium Activation 3.0, Premium Cab, Premium Radio, IF 380/80R38 tires (LI 149B), stainless steel chemical eductor, 80 ft steel boom (15 in spacing) with stainless plumbing, auto boom leveling (5-sensor system), foam marker (air injection single drop), hydraulic tread adjust (92–121 in), hydraulic traction control system, LED lighting package, Connect Mobile Ready, North American lighting and marking system.