What size Bezels should I order, they are offered in 3-3/8" ID, is this too tight for a gauge that physically measures 3-3/8" OD? The next size up is 3-5/8", seems that 1/4" might be too much space. Any input?

I don't know whose bezels you are looking at but I know when I ordered my 2-1/6" bezels the fit my standard gauges fine. I would think the 3-3/8" would be the right size. Just my opinion. Might call manufacturer to make sure.

I ordered my bezels from Eddie Marine. Yes, the 3 3/8" fit the standard 3 3/8" gauge just fine. I got purple ones. Boy, did they make a difference!