impeller and water pump part number 3.0 mercruiser

[jonothehut]

Call my crazy but I cannot find the impeller and water pump part numbers on the mercrusier parts catalog for my 3.0 mercruiser. Serial: 1A015504.
Can yall point me in the right direction?

Thanks in advance,
Jon

 

[Bt Doctur]

If it is the GEN II with 2 bolts and nuts on each side then a:
repair kit 4743026T06 or sierra 18-3214
full kit 817275Q07 or sierra 18-3147

 

[jonothehut]

Thank you. Do I have an impeller and water pump or are they the same thing?

 

[Bt Doctur]

If you have a Alpha1 or Alpha1 GEN II drive you have an impeller in the lower part of the drive, if you have a Bravo drive you DO NOT have a impeller in the drive but on the engine. Most if not all engines use a engine circulating pump
"water pump" is the physical housing the impeller goes into

 

[jonothehut]

Gotcha. That makes sense. I know I have an alpha. Not sure which gen. What is the best way to check which gen I have?

 

[Bondo]

Ayuh,.... Welcome Aboard,... The serial number is guarantied to tell ya right,...

Other wise, the year gets ya close, 'n visual confirms,.... '91 was the year they went to Gen.IIs,...

 

[jonothehut]

Thatnks for the info. I have a gen 2 then. My motor falls between 1998-2009