The double initiator with code number K 84467 is a specialized monitoring device used in the ZV40/48 diesel engine to visually confirm the presence and direction of fluid flow. Installed in key lubrication or cooling circuits, this component helps operators detect disruptions or blockages in real time. Its transparent housing or flow indicators provide immediate visual feedback, enhancing maintenance efficiency and operational safety. With dual input/output functionality, the double initiator supports more precise diagnostics and is essential for ensuring optimal flow conditions in critical engine systems.