Please note:
If the gauge you are trying to repair to working order is a single self contained unit and has a case-back the spins off/on (look for notches on its perimeter for a case-back tool to grab) these insert gauges will not work with those types / models. If your non-insert gauge (as described above) is broken or malfunctioning, you can upgrade to newer model and receive a 25% discount on your order. Details HERE.