[5.0Rookie]

What's the general purpose of one of these switches? Safety precaution should something go wrong with the motor? Anti-theft device?

Ebay_Kill_Switch

 

[Guest]

imo that switch would work best as theft deterrent

 

[EagleAutosports]

That's what I have one for, anti theft.

 

[87stang 5.0]

i wired up a fuel pump shut off switch, and it works great, it cost me about 1.50 and that was the price of the switch, theres even a tech article in the tech section at the top link: Ford Mustang: Mustang Tech: Electronics and Ignition: Fuel Pump cut off switch