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1973 165hp Inline 6 water pump

S

Shaunsommer

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"I have a 1973 searay srv with

"I have a 1973 searay srv with a 165 hp inline mercruiser. I don't know what type (beit alpha1, 2 bravo) Bu my friend thinks we need to replace the water pump impeller. But I do not know which one to get there seem to be multiple options...I can't find a p/n either."
 
"you have a "1" or pre

"you have a "1" or pre-alpha drive, if you have the plastic flush screw then you get 18-3321, if no plastic flush screw, then get 18-3317. If you look at this chart, youll see that the baseplate is the only difference between the 2 kits. You can order 1 kit and get the base plate from the other kit and then you'll be prepared for either when you open it up.\
http://www.marineengine.com/parts/sierra_marine/catalog.html?http://www.marineengine.com/parts/sierra_marine/mercruiser.html"
 
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