Which Impeller part do I need?

Mangler90

Cadet
Joined
May 17, 2010
Messages
13
The impeller went out on my Alpha One 4.3 L outdrive and I would like to replace it myself with parts bought online, the issue is I am not sure which part I need. It is a 1990 Alpha One, I am not sure which generation, it's serial number is 0D330242. Can anyone help me determine the appropriate part?

On a similar subject I need to replace the thermostat and sensor. Same issue. I have a mercruiser motor v-6 4.3 liter serial 855578.

Thanks for any guidance.
 
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