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  1. #1
    Member
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    Jul 2005
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    Hitchcock, SD
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    Which replacement L/U do I need?

    1B840713 250 Pro XS
    2012 Bass Cat Cougar

    Lost lower unit this past weekend.
    I have no idea what I had or which one I need.

    I have looked at Don's site and is PN 88068A44 (GC 3L DFI XL) the correct LU?

    Thanks
    Dave

  2. Member
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    #2
    Gen1 Torquemaster



  3. Member
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    Dec 2011
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    Huntingtown, MD
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    #3
    Correct Gen 1 TM part # 8M0072952
    04 521VX 250 Pro XS
    14 521C 250 Pro XS

  4. Member
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    Jul 2005
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    Hitchcock, SD
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    #4
    Thank you all.

    Have it replaced and came back to check filling instructions. Dealer says fill full, but here indicated otherwise?
    Perhaps that is why I keep getting water in my previous L/U?
    Dave

  5. Member
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    Jul 2004
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    #5
    Click on this for the correct answer >>>>where is oil fill and drain plug on 250 Proxs



  6. Member
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    Nov 2016
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    Danvillle, CA
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    #6
    8M0072952 is for long and most bass boat run this one correct?

    There is also
    8M0072953 extra long.

  7. Member
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    Jul 2005
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    Hitchcock, SD
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    #7
    Savage and others, I checked that reference and was wondering if there was a Mercury tech bulletin regarding this, or is this something that the gurus just have seen, If I ask my dealer to change LU lube he will fill to what they believe is correct (full) but if they have missed a tech bulletin I can hopefully educate them.
    Thanks!
    Dave

  8. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    Apr 2008
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    Greenville, SC (US)
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    95,253
    #8
    Gen-1 TM Gearcase is correct- 8M0072952.

    Gear Lube level information was covered in numerous Technician Training Classes over the years.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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