low fuel warning

[Gary Masse]

Looking for a low fuel warning box(p/n 3513565) Any one knows where I can purchase one?

 

[Rockland71GTX]

I don't have one, but for functionality you can try this:
TechnoVersions - MeterMatch for Analog Gauge Correction
The added benefit is that it allows you to program the gauge to the actual fuel levels regardless of how off the sender is.