Pro Mag 44 Kill Solenoid MSD8134 Product:12 volts It features a check valve

It features a check valve already screwed in to the outlet

501-08BLK-25

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Pro Mag 44 Kill Solenoid MSD8134 Product:12 volts It features a check valvePro Mag 44 Kill Solenoid12 volts MSD8134 D8134 This heavy duty Solenoid is designed to handle the high current of the Pro Mag 44 as well as the vibrations and harsh conditions of Top Fuel racing. The Solenoid is Normally Closed and when you apply 12 volts to it, it opens the ground path and allows the engine to run. Once the 12 volts are removed the Solenoid closes to ground shutting off the magneto's power.