| 23 | 173 039 | Air Pressure Switch (1 per Burner) 605 38-53 | | |
| 24 | 173 030 | Fan (1 per Burner) 55667.00291 | | |
| 25 | 173 031 | Gas Valve (1 per Burner) VK 4115 10552 | | |
| 17 | 173 023 | Ignition Electrode (1 per Burner) 08210716 | | |
| 18 | 173 024 | Detection Electrode (1 per Burner) 08210711 | | |
| 23 | 173 029 | Auto Air Vent | | |
| 32 | 173 038 | Global Flow/Return Sensor T7335D1040 12K | | |
| 32 | 173 038 | Module Temperature Sensor (1 per Section) T7335D1040 12K | | |
| 1 | 172 994 | Module Temperature O/H Sensor (1 per Section) T7335D1040 12K | | |
| 29 | 173 035 | MBD Control Board 1401 912116.3 | | |
| 31 | 173 037 | AM4 Control Board | | |
| 30 | 173 036 | AM5 Control Board | | |
| 34 | 173 040 | Gas Pressure Switch | | |
| 27 | 173 043 | Pressure Gauge 964 | | |
| 2 | 172 995 | Display Screen | | |
| 3 | 172 996 | Push Button Panel | | |
| 26a | 173 032 | CVI Board (1 per Burner) S4865 D10041 | | |
| 26b | 173 640 | Control Module Fuses (MBD) | | |
| 27 | 173 033 | Burners (1 per Burner) | | |
| 28 | 173 034 | Burner Gasket (1 per Burner) | | |
| 6 | 172 999 | Sight glass kit | | |
| 5 | 172 998 | Gas Valve Gasket Set | | |
| 14 | 173 015 | Fan Gasket | | |
| 35 | 173 041 | Reset Button | | |
| 4 | 172 997 | ON/OFF Switch | | |
