Hey guys, looking for some help regarding this issue im having with my boat. The volt meter reads 16+ volts when up around 3000rpm, on the gauge on the dash and i also have a digital volt meter that reads the same, which to me eliminates the gauge itself. I suspect its the voltage regulator. However This is the only regulator i can find:

https://www.ebay.com/itm/VOLTAGE-REG...-/252789682238

My question is, my motor has a seperate rectifer and regulator. So would this unit replace both and take the place of both? And if so, how would i wire it up? I plan to get my battery tested first just to verify it is the regulator before i purchase anything.