Replacing Impeller

[spareparts]

I no longer use any aftermarket water pump kits. On small impeller Mercs, I replace the impeller and upper housing, on large impeller Mercs( your opti), I use the mercury impeller kit with gaskets and wear plate. Tip on replacing the impeller, use two small drill bits as guides to keep all the gaskets in place when you spin the shaft to install the upper housing