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  1. #1
    Join Date
    Aug 2010
    Bath, England

    Default Tohatsu cross reference

    Hi folks,

    I have an unmarked motor, identified through its serial number as a Mercury Mariner 4/5 sn #09852794 mod #1004211rb year 1995.

    I'm hoping to cross refer to a Tohatsu power head. Does anyone have the information?

    Right now, I'm very keen to get a spark plug number for it, and then a manual.

    There's an NKG B6HS in the motor at the moment. I've no way of knowing if this is correct, or just what someone had to hand!


    Jeff Adams

  2. #2
    Join Date
    Mar 2010
    Buffalo, NY, USA

    Default Re: Tohatsu cross reference

    Check the parts catalog at your local Tohatsu/Nissan dealer. Probably a 5B. If so, the 5B uses a slightly colder plug, NGK BP7HS-10. If you are successful in identifying it as a Tohatsu powerhead, any dealer can sell you a Factory service manual, as well as service parts.
    Buffalo NY USA

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