I'm guessing it's probably the bulb, earlier today I ran all the fuel out but the low fuel light never came on.
If it's the bulb, does anyone know the part number and where to get it?
All the other dash lights and indicators work except the low fuel.

 

These sending units are problematic. The usual problem is the fuel guage don't work. Does yours? If yours does my guess is the bulb. They are generic kind. Just match it up to the one you remove. You can try to see if the parts store has the part number.

 

The fuel guage works somewhat, it'll go to full and down to empty as I use the fuel, but when its on empty it still has 5 gallons or so left.
Thanks for the help btw. Im going to replace the bulb tomorrow and have a fuel sending unit and pump I'm going to get from rockauto monday, unless I can find it cheaper somewhere else. Can't believe its almost $400