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  1. 11-19-2020, 12:57 PM #1
    bkeenom
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    Looking for SHO 250 lower unit.

    Need lower unit for my 250 sho. 2010 model . Really would like to find a used or rebuilt one. Anyone have any ideas? I can pay shipping or travel to pick it up
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  2. 21XDC
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    #2 11-20-2020, 05:06 AM
    I'd assume that the 225, 250 and 300 HPDI have the same gearcase and ratio and fit the SHO.... But I'm not sure 100%

    Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
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  3. bkeenom
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    #3 11-20-2020, 06:00 AM
    Quote Originally Posted by 21XDC View Post
    I'd assume that the 225, 250 and 300 HPDI have the same gearcase and ratio and fit the SHO.... But I'm not sure 100%
    Different I think.
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  4. 21XDC
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    #4 11-20-2020, 06:41 AM
    Quote Originally Posted by bkeenom View Post
    Different I think.
    If so....... I'd like to know the differences.

    Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
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  5. bkeenom
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    #5 11-20-2020, 10:16 AM
    Quote Originally Posted by 21XDC View Post
    If so....... I'd like to know the differences.
    Not sure about the gear ratio or other differences but the sho has low water pickups in the nose cone the hpdi has the water pickups in the mid section. Sure someone else knows all the details but this is all I can muster

    s-l400 (1).jpgs-l400 (2).jpg
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  6. 21XDC
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    #6 11-20-2020, 10:41 AM
    Negative... The 225, 250 and 300 VMax HPDI has the low water pick ups. I know because I run one on my 250 OX66.

    This is not the lower unit I'm speaking of...





    This is...


    Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
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  7. 21XDC
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    #7 11-20-2020, 10:46 AM
    Picture of my HPDI LU...



    Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
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  8. bkeenom
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    #8 11-20-2020, 07:04 PM
    I am corrected. So what is the difference?
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  9. yam911
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    #9 11-21-2020, 07:34 AM
    Quite a few differences. Large and small. For instance, different casing, different gear ratio, studs versus bolts, water inlets, trim tab, etc..

    https://www.boats.net/catalog/yamaha...casing-drive-1

    https://www.boats.net/catalog/yamaha...casing-drive-1
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  10. 21XDC
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    #10 11-21-2020, 07:53 AM
    What ratio is the 250 SHO? Are you saying they won't fit or work on eachother? SHO and HPDI and OX66?

    What is the difference in the casing and trim tab?

    Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
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  11. yam911
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    #11 11-21-2020, 03:16 PM
    My bad on the gear ratio. Ratio is the same. Number of gear teeth are different. As shown in the two links.

    See below for other differences.
    zvf.png
    zvz.png
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  12. bkeenom
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    #12 11-22-2020, 10:26 AM
    Quote Originally Posted by yam911 View Post
    My bad on the gear ratio. Ratio is the same. Number of gear teeth are different. As shown in the two links.

    See below for other differences.
    zvf.png
    zvz.png
    So, all technical specs aside, will they match up and run? Are they interchangeable?
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  13. yam911
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    #13 11-22-2020, 10:36 AM
    Only way to know for sure, that I know of, is to get one and give it a go.
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