A guard device for an externally mounted vehicle refrigeration unit is provided,
comprising an open frame assembly constructed from steel tubing, and having a mounting
base, wherein the mounting base includes at least two rigid members adapted to
connect to a vehicle body. The guard device includes a front airflow portion, a
top access port, and a bottom access port. A front airflow panel is connected to
and covers the front airflow portion. A pair of side access ports are also provided
within the frame assembly, wherein each side access port is adjacent to the front
airflow portion. The side access ports are each covered by reinforced side access panels.