| 22 | 114 105 | Air Filter | | |
| 46 | 375 524 | Burner (Keston 60) | | |
| 47 | 375 526 | Burner Manifold Gasket | | |
| 50 | 375 527 | Ignitor Gasket | | |
| 51 | 114 120 | Ignitor/Sensor Probe | | |
| 56 | 114 030 | Flexible Hose Gasket | | |
| 64 | 375 530 | Boiler Thermostat | | |
| 70 | 375 532 | Flue Thermostat | | |
| 75 | 375 533 | Flow Overheat Thermostat | | |
| 78 | 375 534 | Flow High Limit Thermostat | | |
| 94 | 375 535 | Gas Valve Outlet Gasket | | |
| 95 | 375 536 | Gas Multifunctional Control Valve | | |
| 99 | 375 537 | Gas Valve Inlet Gasket | | |
| 107 | 375 529 | Flexible Hose Gasket | | |
| 108 | E01 074 | Ignition Control Box | | |
| 110 | 379 744 | Air Pressure Switch (Keston 50 & 60) | | |
| 120 | E01 075 | HT Ignition Cable | | |
