This hydraulic hose assembly carries pressurized oil to the actuator that raises and lowers the header on a grain harvester. It connects the main control valve on the chassis to the lift cylinder mounted on the feeder housing. A leak or rupture in this line causes the header to drift down or fail to lift, stopping the harvesting operation. The hose is constructed to the original manufacturer's specification for burst pressure and fitting geometry, which ensures it seals correctly in the existing tube seats without additional adapters.