Re: Lower Unit Seal

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October 23, 2016 at 11:25 pm #46387
David Stanton
Participant

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    The Sierra/NAPA part number for the lower seal kit for your 1963 10 HP is 18-2682. It can be bought online at NAPA auto parts or a number of other places online, like iboats – link below:
    Dave

    http://www.iboats.com/mall/partfinder/? … =144138198

    Before buying a kit, examine your propshaft and driveshaft where the seals touch them for wear. A badly worn shaft makes the seals a waste of money.