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  1. #1
    Member
    Join Date
    Oct 2005
    Location
    Louisiana, Missouri
    Posts
    423

    Question Lower Unit Compatibility

    I had a 2001 225 Optimax serial number 0T274536, I had the lower unit replaced in 2017 but the engine gave up this past September. The part number for this lower unit is 859399T13
    I have someone interested in this lower unit but they have a 2013 225 ProXS serial number 1B974839 and the part number it calls for is 880686A43. So to the question, is this older lower unit at all compatible with the newer engine?

  2. Member
    Join Date
    Jun 2013
    Location
    LONGVIEW TEXAS
    Posts
    14,037
    #2
    yea it will fit wouldnt recomend it though on a pxs mtr , standard optis
    .................................................. ...the scariest thing in life is the unknown ...................................

  3. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
    Join Date
    Apr 2008
    Location
    Greenville, SC (US)
    Posts
    95,253
    #3
    +1... really meant for 200 or 225hp Standard Optimax engine models (non-ProXS engine models).


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