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  1. #1
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    Plugs for 1998 optimax 225 0G724343

    Plugs for 1998 optimax 225 0G724343 ?

    The manual calls for NGK PZFR5F-11 but the Mercury catalog calls for NGK IZFR5G.

    Was this a substitution ?
    Last edited by GarryGLW; 08-13-2017 at 10:43 AM.