Raw water pump kit differences

[Drcoffee]

Im looking to replace the water pump again. Ebay kits sell for $40 but mercury kits sell for $180. Assuming both are made in Chyna, is there a dimes difference between them? They look identical.

 

[Scott06]

Im looking to replace the water pump again. Ebay kits sell for $40 but mercury kits sell for $180. Assuming both are made in Chyna, is there a dimes difference between them? They look identical.

Merc kit probably includes the housing - what drive is this for? normally say for a gen 2 they offer a kit with with impeller wear plate and gaskets . If for a gen one they use a plastic housing that I would replace but the stainless housing on a Gen 2 dont need to replace unless it was run way dry or got scored up

Always use the oem impellers most of the aftermarket stuff is junk. In fresh water I get more than 6 years out of a OEM impeller.

 

[Drcoffee]

Alpha one Gen 2 Mercruiser. Full kits. I also have a spare impeller from another parts kit which has a metal core vs the plastic that I see on other kits. Not sure its better or worse. I will check it for iron with a magnet. Dont want anything that rusts. and fuses to the shaft.

 

[Scott06]

Alpha one Gen 2 Mercruiser. Full kits. I also have a spare impeller from another parts kit which has a metal core vs the plastic that I see on other kits. Not sure its better or worse. I will check it for iron with a magnet. Dont want anything that rusts. and fuses to the shaft.

This is what I have used and will last for years

OEM MerCruiser Alpha Gen 2 Impeller Repair Kit 47-8M0100526

OEM Quicksilver/Mercury Impeller Repair Kit 47-8M0100526 Please confirm fitment of MerCruiser parts with your serial number. Photos and descriptions provided via Mercury may not always be accurate. All of our Mercury parts are sold and priced EACH.

nuwavemarine.com

$40 for a full kit is junk don't waste your time.

You can order that part number merc kit from many sites. I changed mine after 6 years and 270 engine hrs and it was new looking. I replaced it because I was in there but not worth screwing around with other parts given how long they last and how critical it is.

 

[JASinIL2006]

I agree. The water pump is not something to scrimp on.

 

[Scott06]

I agree. The water pump is not something to scrimp on.

Yeah I wish I could find the thread where the guy was bitching about not being able to change his alpha out on the water like you might be able to do with a crank driven pump... when asked what impellers he was blowing through he was using cheap aftermarket ones...