Dorman 674-3000 Diesel Oxidation Catalyst (DOC)

Exhaust Sensor List (Sold Separately, See Add-On Items):This DPF system requires 4 sensors total – 3 Exhaust Gas Temperature (EGT) Sensors (all of these are the same) and 1 Diesel Particulate Filter Pressure (DPFP) Sensor. Sensor 1: Location is before the Diesel Oxidation Catalyst (DOC) and requires EGT sensor WPI273-10339. Sensor 2: Location is after the Diesel Oxidation Catalyst (DOC), right behind the connecting flange and requires EGT sensor WPI273-10339.  Sensor 3: Location is after the Diesel Oxidation Catalyst (DOC), right next to Sensor 2 location, behind the connecting flange and requires DPFP sensor AP63473. Sensor 4: Location is after the Diesel Particulate Filter (DPF) and requires EGT sensor WPI273-10339.