Mike,
Just looked in my 2GM20 parts manual:
121000-42100 is a replacement water pump with impeller/bearings/gasket and
pulley flange that bolts into the thermostat casting as a module. THIS IS THE
ONE YOU WANT!
128695-42010 is as above, but also includes the thermostat casting that above
bolts into. I doubt you need that one.
sam :-)
C&C 26 Liquorice
Ghost Lake Alberta
From: CnC
Sent: Wednesday, May 13, 2015 8:12 AM
To: CnC
Cc: Hoyt, Mike
Engine: Yanmar 3GM30F
Have come across two part numbers at different costs.
1. 128695-42010 “Cooling Fresh Water Pump” . Generally selling for around
$270 USD
2. 121000-42100 “Fresh Water Pump Assembly”. Selling $176.95 CAD at boat
house
Is the second a component of the first? Anyone know the difference and which
is needed to be replaced when the seals start to go resulting in the leak from
weeping port?
Mike
Persistence
Halifax
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