CUMMINS ISX15, (GOOD USED) OEM Cummins ISX15 Diesel Engine Nitrogen Oxide Sensor w Exhaust Outlet, for sale!!!!! Exhaust Outlet Connection P/N: 3689540 3689539 Nitrogen Oxide Sensor P/N: 4326870 4326870RX 3687930 3687930RX Stock #: IN1135 For more information about this
