If you are tired of having the blue plastic drain plug tabs crumble in your fingers then look no further these replacements for mercruiser part 22 806608a02 from hardin marine are polished stainless steel and will last a lifetime.
Mercruiser 4 3 drain plugs.
It is equipped with four drain plugs.
06 11 2018 06 11 2018 3 comments on 4 3 mercruiser drain plugs diagram.
Thread on the plug is 13.
Before boats are stowed away for the winter they must undergo a process known as winterization this means that the engine is completely emptied cleaned and antifreeze is applied so that damage does not occur over the cold season.
The 4 3 mercruiser engine is a popular inboard motor for boats.
Mercruiser drain plugs if you leave the plugs out there is no need for antifreeze but you still want to stabilize your fuel system properly.