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