Re: tn27 impeller 375688 now sierra 18-3001 ??

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January 22, 2018 at 6:03 pm #70048
Mumbles
Participant

    The new impellers thickness and diameter are the same as the original but the TN shafts were slightly larger in diameter than the later small OMC motors. If the impellers bore is honed out a bit, it will fit right in.

    This applies to the TN-26 but I’m sure the TN-27 shaft size would be the same.