Which raw water pump do i need??

[Irie308]

I need to replace my starboard raw water pump. My engines s/n is 399238 and from what I've found there are two choices (with or without air). How do I find out which one I need?

Thanks

 

[jason78]

If your engines are Closed Cooling, you need the Pump w/Air Fittings.

 

[Irie308]

Figured it would be the more expensive one. Thanks, I have closed cooling. I guess my next question would be the best place to pick one?

 

[MasterFab]

Why do you need to replace it? They can usually be rebuilt.

Dale

 

[Irie308]

Yard is saying it's not much of a cost diff to rebuild vs replace.

 

[Fun Times]

Here's a different alternative to consider. Most that have switched are happy they did. http://www.hardin-marine.com/p-1577...sea-pump-for-mercury-350-496-and-502-mag.aspx

 

[Jeremygavin]

I just installed 2 new Hardin pumps this spring. They fit great, bolted right up and should last longer with the wear plates. I didn't realize how much suction I was losing in the old pumps till I put these on and had water coming out of the exhaust a lot faster than with the old pumps. I went to change my impellers this spring and one of my pumps bearings were starting to get gritty, they both had 284hrs on them.

 

[dpmulvey]

If your engines are Closed Cooling, you need the Pump w/Air Fittings.

Really!?!

i thought you could have closed cooling w/o the single point option.