Re: [Amel Yacht Owners] Re: Onan Water Pump


The Onan 4 cylinder and the Onan 3 cylinder Kubota take the same water pump (Onan 132-0459 132−0358) (Sherwood G-702)...probably year 1995 to 2015...maybe more years.


CW Bill Rouse
Admiral, Texas Navy
Commander Emeritus

Amel School
720 Winnie St
Galveston Island, TX 77550

+1(832) 380-4970

Any opinions and conclusions expressed in this message are solely those of the author and should not be construed as representing the opinion of an expert. Manufacturers' and Expert's precautions must be taken when dealing with mechanical and/or electrical systems to ensure that you are NOT harmed, and/or the device and/or system is NOT ruined. If in doubt, do not touch any referred to mechanical and/or electrical device or system.

On Sat, Jul 7, 2018 at 9:39 AM Alex Ramseyer alexramseyer@... [amelyachtowners] <amelyachtowners@...> wrote:

I found the G702 on Amazon and would like to order one as a spare.
However, I need to be sure that pump is the right one for my MDKAW model from 2005. Do all ONAN that we use on our AMELS have the same pump? Where can i  ask/research to be sure in case there are different Sherwood pumps for our ONANS available?
Thans, Alex
AMEL54 #15

On Saturday, July 7, 2018, 8:58:29 AM GMT-4, sangaris@... [amelyachtowners] <amelyachtowners@...> wrote:


Actually, you're right - it is easy-peasy and you definitely don't need to go to the expense of a shop rebuilt. I agree with Mark that having two pumps works great - you can rebuild one at your leisure after popping the new one on. I do this with both my genset and my main engine water pumps - have rebuilt them both many times over the years.
In lieu of a press you can just carefully tap out the shaft using a socket from your socket wrench set as a "pusher". On reassembly you may want to put parts in the freezer and/or hot water to make them go together more easily. Sourcing parts is easy.
Have fun with it!
Cheers, Craig Briggs

---In amelyachtowners@... om, wrote :

Bill R.,

Thank for your post.  I actually had a rebuild kit on board (memory is an occasional thing for me these days it seems) and though easi-peasi, just rebuild the pump!  But it will take a shop to get this one apart.

I agree with you, another pump is the way to go.


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