Where would I get a pressure switch that would turn on a light to indicate low fuel pressure?
Any part numbers and prices would be helpful. Thanks

 

BD sells a kit.

Look them up.

I think it is like
www.BDpower.com or something.

Even better, before you do that check out the vendors that advertise here and see if they sell a similar product.

 

just hit any NAPA or auto parts supplier. You basically want an idiot light sender.

I don't remember the part number of mine, but it came from Stewart-Warner and turns the light on at 5psi. Think it cost me about $6.

BD's unit is nice but I'd sooner make a truck payment than pay what it's worth!

 

get a normally closed adjustable hobbs switch from any parts store. Set the pressure threshold where you want it. when the fuel system pressure up, the switch will be open, but if it falls below your set point, the switch closes and sets the alarm.