Abstract: An improved stationary refrigeration unit having a cooling compartment and a service compartment is provided for installation in tight quarters for vehicles, the service compartment having an access door on the same side of the unit as the cooling compartment access door, components readily accessible and adjustable through the service compartment door, and an adjustable component mounting assembly rigidly mounted within the service compartment. The adjustable mounting assembly includes a stationary carriage, a mounting member slidably mounted to the stationary carriage, and an assembly longitudinally moving the mounting member and the component attached thereto relative to the stationary carriage.