Chuck, et al
The red LEDs that I used to replace the burnt-out/dead little indicator lights behind the yellow lenses were these, from Amazon.
Alpinetech 6mm 1/4" Red 12V LED Metal Indicator Pilot Custom Dash Light Lamp with Black Body PLB-6
Remember, these replace the lens and the tiny light behind the lens, but fit into the little hole in the panel just fine. Beware, close-quarter soldering required. I used those new butt connectors that come inside a heat-shrink tube and have a bit of solder inside them. Insert your wires into each end and hit it with a heat gun for a few moments. They work great.
"Everything on your boat is broken. You just don't know it yet."