| *1 | Differential Pressure Sensor | *2 | Air Fuel Ratio Sensor |
| *3 | Front Exhaust Gas Temperature Sensor (Exhaust Gas Temperature Sensor) | *4 | Oxidation Catalytic Converter |
| *5 | Rear Exhaust Gas Temperature Sensor (No. 2 Exhaust Gas Temperature Sensor) | *6 | DPF Catalytic Converter |
| *1 | EGR Cooler Bypass Switching Valve (No. 2 EGR Valve Assembly) | *2 | EGR Cooler Switching Valve |
| *3 | EGR Cooler (EGR w/Cooler Pipe Assembly) | *4 | EGR Valve (Electric EGR Control Valve Assembly) |