small black pump below step 2008 R25

[jimbeam]

Dumb question. What is the small black pump directly below the rear lift step down low with 2 coolant hoses attached on the 110 HP yanmar? It is in front of the engine but not attached to it except for 2 coolant hoses. It is attached directly to the boat. Does that pump coolant to the heater below the captains chair? The pump appears to be leaking from the seal that is screwed in with 4 screws. Can't find a diagram anywhere online of that pump.
Jimbeam

 

[sabadd2003]

Your that is the circulation pump for the heater. There is a repair kit that has the O ring and impeller fot it.

 

[DBBRanger]

There is a repair kit that has the O ring and impeller fot it.

I’ve never been able to find that. Can you provide a link please?

 

[jimbeam]

I found the pump at spxflow website. I think it is a CM-30. That has a 35gpm flow. Their is also a CM-10 pump with a 25gpm flow. They look identical except for the wire connect. I did not find a repair kit for the pump at spx but maybe Johnson has one.
jmbeam