Parts list: № Number Qty Name Options 1 RE502657 1 Heater 24V - 850W 2 14M7528 1 Lock Nut M6 3 R501459 1 O-Ring 58.420 X 2.616 mm (2.300" X 0.103") 4 R133893 1 Gasket Next page: ST722086 Plug, Without Water Temperature Sensor ST722044 Thermostat ST722045 Thermostat Cover