Impeller question

[Brentpit]

I have a 1980 lund 17 siruis. The boat has a 120HP Mercruiser. It used to have a 140 Mercruiser 3.0 but had milky oil so we switched it out with the 120 hp until I can get the 140hp rebuilt over winter. I tested the set up tonight for the first time everything seems to be working well but the boat is running hot. I imagine the impeller is in bad shape I have no idea how long the boat has been sitting. The out drive has the serial number faded off. Anyone know how I would get the proper part number for the impeller?

 

[1960 Starflite]

Re: Impeller question

Here are the numbers for the 140. I would think the 120 is the same. The old 888 & 165 drives also uses these parts. Check with your local auto parts store, they may be able to check the numbers. They should have the Sierra parts book.

Upper water pump kit SIERRA 18-3517
KIT COMPLETE 18-3317
IMPELLER ONLY 18-3017