Yamaha Watercraft AR190/AR240 Oxygen Sensor 6DE-8592A-00 Replacement

Yamaha AR190 and AR240 series boats oxygen sensor 6DE-8592A-00; stainless steel housing and ceramic sensing element; tested for high-temperature and corrosion resistance; life expectancy 2-3 years in freshwater or seawater environments. It monitors oxygen concentration before and after the catalytic converter and feeds back to the ECU to adjust air–fuel ratio, ensuring combustion efficiency and emissions compliance. Installation difficulty medium; remove the exhaust shield and use a 22 mm wrench to replace the sensor.