The Onan raw water pumps come from a couple of different manufacturers, depending on the exact model and year of manufacture. The one on our older and smaller Onan is an Oberdorfer pump, but I think some of the larger and newer models might use Johnsons
I have had good luck ordering raw water pumps and parts from marinepumpdirect dot com
Annapolis, MD, USA
---In amelyachtowners@..., <osterberg.paul.l@...> wrote :
Our Onan raw water pump looks as it running on overtime so we would like to order a spare pump.
Were is the best place to order when in USA.
Paul on SY Kerpa SM#259 on Sassafras river Chesapeake bay