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  1. #1

    78 37C gen set impeller Part #

    I have a 1978 37C with an Onan 7.5 diesel Genset.
    Jabsco water pump. looking for the impeller part number. Any body have it handy?
    Yes I am too lazy to crawl in to find it.

  2. #2

    Re: 78 37C gen set impeller Part #

    If it's an Onan MDJE 7.5kw, my notes show that the impellor is 131-0386. That # replaced the old part # 131-0218. The repair kit for the pump includes the impellor and is part # 131-0258.

    Edit - That's the raw water pump, not the circulating pump.
    Last edited by Bob Bradley; 09-19-2018 at 11:29 AM.
    Everyone should believe in something - I believe I will go fishing - Henry David Thoreau

  3. #3

    Re: 78 37C gen set impeller Part #

    Quote Originally Posted by Bob Bradley View Post
    If it's an Onan MDJE 7.5kw, my notes show that the impellor is 131-0386. That # replaced the old part # 131-0218. The repair kit for the pump includes the impellor and is part # 131-0258.

    Edit - That's the raw water pump, not the circulating pump.
    Bob
    Thanks for the info it turns out to be exactly what I needed. I have 3 impellors for the circulating pump. Raw water pump was what I needed.
    Mike

  4. #4

    Re: 78 37C gen set impeller Part #

    Isn't the circulation pump centrifugal?

    They dont take rubber implers.
    Scott
    41C117 "Hattatude"
    Port Canaveral Florida.


    Marine Electronics and Electrical Products Distributor.

  5. #5

    Re: 78 37C gen set impeller Part #

    Yeah, if I recall, the circulating pump had a pair of brass gears, not an impellor.
    Everyone should believe in something - I believe I will go fishing - Henry David Thoreau

  6. #6

    Re: 78 37C gen set impeller Part #

    That's true !!

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