Abstract: Disclosed embodiments include apparatuses, vehicles, machines, equipment, and methods for selectively allocating airflow between different heat exchangers. In an illustrative embodiment, an apparatus includes a first heat exchanger configured to dissipate heat from at least one first system. A second heat exchanger is configured to dissipate heat from at least one second system. An airflow controller is configured to receive an intake airflow and to direct an output airflow to selectively direct at least a portion of the output airflow to either or both of the first and second heat exchangers.