The standard fuel filter is a Yanmar #129574-55711 & on the bottom to fill the hole & sense for water is the "Sensor" # 129574-55730. The "Sensor has an electrical connection but is not hooked up to the engine panel that Hunter supplies and is therefore worthless. The "Sensor" can be difficult to get tight enough to prevent a fuel leak at the base of the fuel filter. The question is has anyone found a YANMAR fuel filter that can be installed that does NOT require the "Sensor" ? Thanks for any help. Gordon Myers on Utopia III a h450