See all products of Spare parts for gas solenoid valves Spare coil, complete with connector. Spare coil, complete with connector. Spare coil for normally open solenoid valve, complete with connector. For 839 series. Spare coil for normally open gas solenoid valve, with connector. For 8540 series. Spare coil for normally closed gas solenoid valve, with connector. For 8541 series.