| *1 | Differential Pressure Sensor Assembly | *2 | Injector Driver |
| *3 | ECM | *4 | Air Fuel Ratio Sensor |
| *1 | Injector Assembly | *2 | EGR Valve |
| *3 | Suction Control Valve (SCV) | *4 | Fuel Temperature Sensor |
| *5 | Exhaust Fuel Addition Injector Assembly | *6 | VSV for EGR Cooler |
| *7 | Exhaust Gas Temperature Sensor | *8 | EGR Cooler Bypass Valve |
| *9 | No. 2 Exhaust Gas Temperature Sensor (Upper Side) | *10 | No. 3 Exhaust Gas Temperature Sensor (Lower Side) |
| *11 | EGR Cooler | - | - |