Engine 4 is a 2006 Rosenbauer with a 1250 gpm single stage pump. It is housed at Fire Station 4 and protects the Northside area of Sioux City. Engine 4 is staffed with one officer, one driver and one firefighter. The firefighters at Station 4 are responsible for reapairing, tracking, and maintaining all fire hose and nozzles used by the department.