Water In Filter (WIF) Sensor is a genuine OEM replacement Water In Filter (WIF) Sensor. Prevent water contamination in your fuel system by periodically replacing the WIF sensor. Water in Fuel Sensors signals the Engine Control Module (ECM) and dashboard lamp when water is in your fuel. The WIF threads on to your Fuel filter housing, threads can get worn or stripped, wires broken, replace with this genuine OEM Replacement.