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Carburetors, Mixers, Fuel Pumps and fuel delivery Discussion about misc. carbs, mixers, fuel pumps, injectors.

Carburetors, Mixers, Fuel Pumps and fuel delivery

Onan 12.5 kw fuel pump diaphragm

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Old 11-26-2018, 01:13:47 PM
okieflyer1 okieflyer1 is offline
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Default Onan 12.5 kw fuel pump diaphragm

I have recently purchased a 12.5 kw Onan gasoline generator set from a government online auction. I put new engine oil and filter in it, hooked a fresh battery to it and new gasoline from a clean source. Low and behold the thing started up and ran like a singer sewing machine. The only issue is the fuel pump has a leak where the diaphragm is on the fuel pump. I called the local Onan dealer and he said his information says it is obsolete and no longer available. I'm hoping someone might have a line on some parts. he gave me the Onan part # 149-1787. I'm hoping someone will have a source for parts for this machine. It was built August of 1985
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Old 11-26-2018, 06:44:36 PM
mmcdonald mmcdonald is offline
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Default Re: Onan 12.5 kw fuel pump diaphragm

If you don't get "onan" help, try the below. They're not onan experts but they do know fuel pumps.
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