Hi everyone, we recently bought a 1998 SeaRay 175 Bowrider, with a Mercruiser 3.0L motor and 20 gallon fuel tank. Yesterday we got stuck on the pond. The fuel gauge read 1/2, but the tank ran dry. My questions are: 1) is the problem more likely to be the sending unit or the gauge? 2) The parts document for this boat shows part #912667 for the gauge, and part #782664 for the sending unit. Unfortunately, I can't find either of these part numbers online. Do you have any suggestions for how I can fix this issue? Thank you.