Anti-restart ignition switch won’t let you crank engine twice

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Cole Hersee’s 956 series of anti-restart ignition switches is designed to protect starter motors from restart damage by preventing the operator from restarting a running engine. The switch — suited for the commercial delivery industry, where drivers often leave vehicles running during deliveries — allows the ignition to turn to the “restart” position only from the ignition’s “off” position.

The ignition cannot be turned to start when the engine is running; if the operator wishes to restart for some reason, the operator is forced to first turn the engine off, and then restart, the company says. The switch is available in two different styles: key ignitions for standard vehicles and levers for off-road applications. For more information, go to