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  1. #1

    Parts list for Garmin Fish Finder on any ST3 Hull

    Here is the parts that you need to install the FishFinder in the OEM position like the Fish Pro on any ST3 hull ski. My understanding is that this will also work with the new 2021 RXPX but I have not confirmed that. (If you have a 2018 ST3 hull, the mirror is slightly different and you will have to use a dremel to cut away some of the excess plastic to mount the Exhosounder Support)


    To install the Garmin 62CV here are the parts needed. You can order them through greenhulk.net
    Links are provided below


    269502375
    DEEP BLACK, ECHOSOUNDER DEFLECTOR
    https://www.4-tecperformance.com/ind...oducts_id=8147


    269502357
    ECHOSOUNDER SUPPORT
    https://www.4-tecperformance.com/ind...oducts_id=8145


    278003673
    ECHOSOUNDER POWER SUPPLY HARNESS
    https://www.4-tecperformance.com/ind...oducts_id=8149


    250000399
    HEXAGONAL CAP SCREW M6 X35
    2 are needed
    https://www.4-tecperformance.com/ind...oducts_id=8146


    211000023
    HEX. SCREW 10-14 X 7/8
    2 are needed
    https://www.4-tecperformance.com/ind...oducts_id=7938


    If you have sound then you also need
    278003684
    MULTIPLE ACCESSORY HARNESS
    https://www.4-tecperformance.com/ind...oducts_id=8148


    Now if you want the Garmin 73SV which is the best way to go. You only need the following parts but you will have to splice, solder, and heat shrink the power and ground into your accessory harness. The reason you don't need the power supply harness is that your Garmin will come with one and it is different than the one for the 62 series. So that one does you no good.


    269502375
    DEEP BLACK, ECHOSOUNDER DEFLECTOR
    https://www.4-tecperformance.com/ind...oducts_id=8147


    269502357
    ECHOSOUNDER SUPPORT
    https://www.4-tecperformance.com/ind...oducts_id=8145


    250000399
    HEXAGONAL CAP SCREW M6 X35
    2 are needed
    https://www.4-tecperformance.com/ind...oducts_id=8146


    211000023
    HEX. SCREW 10-14 X 7/8
    2 are needed
    https://www.4-tecperformance.com/ind...oducts_id=7938


    Here is a few pictures of the Watercraft Journal when they installed it. But they bought a kit someone was putting together.


    https://watercraftjournal.com/galler...y-st3-sea-doo/


    Here is another post with the issue on the 2018 ST3 hull. I just used a dremel and removed just enough plastic for the mount to sit all the way down.



    http://greenhulk.net/forums/showthre...UQ#post3020631

  2. #2
    MSX 150 guy lives on Mr. GP1800's Avatar
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    You can also just wire the Garmin direct to the battery with the power cable that comes with the Garmin.

  3. #3
    I already have the 73cv mounted to to cowl on my 2018 230 RXT, but like this better as it looks factory (which it is). Photo of current setup attached. My question... Is there a OEM cover that will fit the RXT with the Echosounder support in place? The Fish Pro models have the extension in the back making the cover too long, so that won't work. Would the cover for a new Fish Pro Scout work? or is there something available in other markets?

    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by scottmidd; 01-03-2022 at 04:05 PM.

  4. #4
    Any of the new GTX/RXTX covers will work as they have a little expandable pocket with a sipper that covers the fish finder.

    Quote Originally Posted by scottmidd View Post
    I already have the 73cv mounted to to cowl on my 2018 230 RXT, but like this better as it looks factory (which it is). Photo of current setup attached. My question... Is there a OEM cover that will fit the RXT with the Echosounder support in place? The Fish Pro models have the extension in the back making the cover too long, so that won't work. Would the cover for a new Fish Pro Scout work? or is there something available in other markets?



  5. #5

    Join Date
    Oct 2021
    Posts
    7
    The Humminbird HELIX 5 mount will fit on the mirror already. Its not a waterproof device and even with just water spray has issues, but they claim its IP rated. I put gasket maker on it and so far so good after going through a few units. Cheaper option for sure, and i like it better since it keeps it out of the way compared to how much the stock one sits up
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  6. #6
    Site Admin Green Hulk's Avatar
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    Excellent info jsmith7364, thanks for sharing!

  7. #7
    jsmith7364 - Thanks for the info! I was getting ready to take my old cover to a marine upholstery shop to have it modified. I'll order a new cover and be done with it.

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