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  1. #1
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    Smartcraft Connect Question

    2020 Mercury 250 Pro XS - 2B736340

    I have both Garmin 126sv Ultra 2 and Smartcraft gauge at helm and would like to connect NMEA 2k (I have that setup already) to the motor using either SmartCraft Connect under helm OR SmartCraft Connect under cowling. I prefer setting up under helm if possible. See photo of the back of my SmartCraft gauge.
    image0.jpeg
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    2020 Ranger Z521LI/Mercury 250 Pro XS

  2. Member alli ss's Avatar
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    #2
    Check your key switch harness and see if it has a big extra plug there. Thatll solve half of your issue if so

    Phoenix 721 Pro XP, 250 Pro XS, aluminum gravel bar modified prop, paper sack tackle storage, ugly stik pro team, color c-lector pro team, TEMU Fishing Team

  3. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #3
    Really need to see a full-size image of the back of that instrument (Smartcraft is a "technology", not a specific gauge). Will need to determine what that is you're using in order to provide accurate suggestions.

    If it turns out to be a MercMonitor, follow the harness connected to the back of the gauge. It connects approximately 2.5 - 3' away from gauge to either an "adapter" or a Junction Box.

    Either way, we should be able to spec out the correct components for Smartcraft Connect HELM for you. See Rhonda's post, pinned at the top of the Forum: If you drop her an email with the info above, we can set you up with exactly what you need.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  4. Member
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    #4
    Excellent, you both are big help! See pictures- these are behind the keypad. What do I need to buy besides smartcraft connect helm?
    image0.jpeg
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  5. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #5
    You'll need a 5-gang J-box and Smartcraft Connect (helm), and will need one (1) NMEA-2K tee to add the drop to your network.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  6. Member alli ss's Avatar
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    #6
    Im about to do all this myself. Got the j box and cables but not the connect just yet. Im sure ill need help with mine as i got a few sensors like fuel and oil levels

    Phoenix 721 Pro XP, 250 Pro XS, aluminum gravel bar modified prop, paper sack tackle storage, ugly stik pro team, color c-lector pro team, TEMU Fishing Team

  7. Member
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    #7
    This is what I just ordered:
    image0.jpeg
    Part Number 878492K14
    4 gang j box - arrive later this week.

    I hope this will work, if not I'll need to order 5 gang per your suggestion.
    Last edited by Bassus Maximus; 03-25-2025 at 12:57 PM.
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  8. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #8
    Quote Originally Posted by Bassus Maximus View Post
    This is what I just ordered:
    image0.jpeg
    Part Number 878492K14
    4 gang j box - arrive later this week.

    I hope this will work, if not I'll need to order 5 gang per your suggestion.
    Where did you order that from?

    There's a reason I didn't mention a 4-gang J-Box: They're obsolete, discontinued and have been replaced (some time ago) with a better design 5-gang.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  9. Member
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    #9
    Thanks Don! I got it through <See Announcements- NO SUPPORT for this source> (the seller accepts returns; I can return it and go with 5-gang). Just to be certain that I am ordering the correct part: Mercury-Mercruiser 98-8M0165557 Junction Box 5-Way 3 Caps Stackable (<See Announcements- Links to Non-Sponsor Sources>). If you carry it, please let me know and I can buy it from you and put in the same shipment with Smartcraft Connect I ordered.
    Last edited by EuropeanAM; 03-27-2025 at 06:35 PM. Reason: See Announcements
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  10. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #10
    Quote Originally Posted by EuropeanAM View Post
    ....
    Either way, we should be able to spec out the correct components for Smartcraft Connect HELM for you. See Rhonda's post, pinned at the top of the Forum: If you drop her an email with the info above, we can set you up with exactly what you need.
    Yes, as stated, Rhonda can set you up with everything you need.

    Please take a few minutes to review the Announcements at the top of the forum. There are some important items in there that would help you to achieve success.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  11. Member
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    #11
    My apologies, Don. Thanks for your support!
    Enjoying Salt Life!
    2020 Ranger Z521LI/Mercury 250 Pro XS