#1 Home Improvement Retailer

Internet # 311097864

Model # MM371W

Store SKU # 1004753980

Medium Duty Single Swing Gate Opener Smart and Solar Capable

Apply Now
Pay $309.99 after $50 OFF your total qualifying purchase upon opening a new card. info
Apply for a Home Depot Consumer Card
  • Gates up to 16 ft / 550 lbs., chain, tube, panel, vinyl, wood
  • Compatible: Smart Devices Connectivity Kit & Solar Panel
  • Superb reliable performance 40% faster opening and closing speeds
  • View More Details
0 in stock
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy
Product Details

About This Product

The MM371W Smart Single Gate Opener brings unrivaled convenience with smart features. This allow control from anywhere using your smart phone app. The MMS100 Wireless Connectivity Kit is needed for smart features. Sold separately.


  • Smart capable: with the addition of the Mighty Mule Wireless Connectivity Kit - sold separately (Model # MMS100). Smart features allow for control & monitoring of your gate from anywhere using the Mighty Mule App on a smart device, providing premium convenience and security.
  • Faster gate opening & closing speeds: 40% faster than competitors.
  • Ideal for medium duty single gates up to 16 ft. or 550 lbs.
  • Backed by Mighty Mule 12-month warranty
  • Additional accessories such as entry/exit remotes (Model # MMT103), entry keypads (Model # MMK200), solar panels (Part # FM123) and vehicle exit sensors (Model # FM130-SW) all can be purchased on HomeDepot.com or at your local Home Depot store.
  • Required: 12-Volt automotive or marine type battery that produces a minimum of 250 cold cranking amps (CCA). (Not included).
  • DIY friendly: the MM3711W comes equipped with detailed instructions, online how-to videos & unlimited access to 24-hour technical support.
  • The MMB200 Battery Box can be added, which holds 2 FM150 batteries for extra power if needed. All are sold separately on Home Depot.com.
  • Speak to an Associate about Doors and Windows. Call 1-833-HDAPRON (432-7766) for free design, purchase and installation help daily from 9AM - 9PM EST.
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 311097864

Model # MM371W

Store SKU # 1004753980


Dimensions: H 6.5 in, W 9.25 in, D 42.5 in


Maximum gate size (ft.)

16 ft

Product Depth (in.)

42.5 in

Product Height (in.)

6.5 in

Product Width (in.)

9.25 in


Commercial/Residential Use



No Additional Features

Fencing Product Type

Gate Opener Master Unit

Gate opening style




Power Requirements

AC or Solar

Product Weight (lb.)

18.2 lb



Weight Capacity (lb.)

550 lb

Warranty / Certifications

Manufacturer Warranty

12 months

Questions & Answers

Q:Can I use a FM137 digital keypad on a MM371W gate opener?
by|Apr 5, 2024
1 Answer
Answer This Question

A:  HI Hank, actually the MMK200 Keypad would be for the newer MM371W model. The FM137 keypad can only be used with our older models. Hope that helps. Thank you for this great question.

by|Apr 6, 2024
    Q:will the 371 open the gate in either direction?
    by|Mar 27, 2024
    1 Answer
    Answer This Question

    A:  Hi Tony, great question, the gate will open in toward your property. If you need it to go the other way, you would need to purchase our FM148 Push to Open Gate Bracket. Thank you

    by|Mar 28, 2024
      Q:Does the opener come standard with the 12 V DC adapter needed to hardwire to electrical outlet or do I need to purchase a separate item?
      by|Mar 18, 2024
      1 Answer
      Answer This Question

      A:  Dear Nick, Yes, this unit comes with an AC adapter. I recommend you checking out our installation videos on Mighty Mule.com or on YouTube. We also have a BILT app that can help you set up your new opener. Its gives you a step by step instructions and easy to use.

      by|Mar 22, 2024
        Q:does it operate from a transformer or battery only
        by|Nov 11, 2023
        1 Answer
        Answer This Question

        A:  Hi John, our Mighty Mule Gate Openers will operate from electric, battery and solar. Great question. We have installation videos on Mighty Mule.com and Youtube. Highly recommend you check those out. Thank you

        by|Jan 6, 2024
          1 found this answer helpful
          Showing 1-4 of 52

          Customer Reviews

          3.6 out of 5

          • 3.6 out of 150 reviews
          • 49% recommend this product
          Filter by:
          Showing 1-10 of 150 reviews
          Good opener
          Easy to install, great support. The added antenna picks up a long distance from the driveway, so the gate is open when I up and not sitting on the road waiting
          Response from MightyMuleSupportJan 11, 2023
          Great tip, William, and we appreciate letting us and others know.
            • Recommended
            Broke upon installation, parts purchased separately don’t match
            1. Bracket broke upon installation (see photo) 2. Both Mighty Mule AND Home Depot unable to help during the weekend, despite the fact that I purchased a warranty. 3. Solar wiring has eyelet connector but battery has tongue connector so I had to go buy parts to splice so they would work together. Both solar panel and battery are Mighty Mule products so I’m not sure why this problem exists. 4. The instructions for setting up the close/open gate limits are very confusing. 5. There were SO many additional parts that needed to be bought it’s ridiculous. You don’t find that out till after you buy it. 6. One remote. Why?? 7. Remote didn’t work until we opened it and fiddled with the battery. There was nothing in the instructions about “fiddle with the battery to make it work” I owe my builder a six pack after this mess.
            Response from MightyMuleSupportJun 10, 2020
            Lilli, We at Mighty Mule are very sorry for this inconvenience. Please let us help. I highly recommend you call out Tech Support team at 800-543-1236 M-F 8am -7pm EST. We also have online instruction videos available on the Mighty Mule Website under the Support tab. We are here for you please reach out. Thank you
              8 found this review helpful
              The mighty mule gate opener is something I have wanted for several years and finally got one. Th...
              The mighty mule gate opener is something I have wanted for several years and finally got one. The instructions are overly comprehensive but once you get started it goes very easily with no issues. The only problem with the opener was with a included wire harness for the battery. It had wire ends installed that do not fit through the wire openings on the control box, for me that was no problem, I have replacement wire ends. The opener works very smoothly, but I have a wheel one my gate rolling over rocks. So I need to either remove the wheel or the rocks, and be ready, it moves faster than you will be expecting, that is a feature I really like. I also installed the reccomended ground rod. There are many accessories that you can order to compliment the Auto gate and I have order a few of them, like the remote gate lock and extra remote switch key fobs. There is no doubt this is something I am going to enjoy for a long time.
              • Recommended
              5 found this review helpful
              MIGHTY MULE AUTOMATIC SINGLE GATE OPENER BRINGS UNRIVALED CONVENIENCE WITH SMART FEATURES is easy to use and works great. You need to purchase the Mighty Mule MMS100 Wireless Connectivity Kit for it to work. After installation, use the app to open and close your gate. We’d been wanting to fence odd our front yard but needed to have the fencing cross the driveway. This product does the job. Very helpful.
              • Recommended
              Mighty Mule is a trusted Name and Product. I have a Mighty Mule Cable Release and It's worked Per...
              Mighty Mule is a trusted Name and Product. I have a Mighty Mule Cable Release and It's worked Perfect for Years This Gate Opener is a little more involved. You have to have a Marine or Auto battery that cranks out 250 cold cranking amps, also Mighty Mule Wireless Connectivity Kit - sold separately Model Number (MMS100). to use the Smart Function. This is going on my Northern Property as soon as the ground thaws. I'll update my review then.
              • Recommended
              I got this Mighty Mule 371 Smart Single Gate Operator to be able to open our gate from my smartph...
              I got this Mighty Mule 371 Smart Single Gate Operator to be able to open our gate from my smartphone. The quality of the product seems very good, but there are some negatives too. My first disappointment came when I noticed that the set comes with only one car opener. Who has only one car in our time? The second disappointment was when I realized (but it was printed n the box) that I need to purchase more items to make the smart part actually work (Requires a 12 Volt Automotive or Marine type battery (not included) and a MMS100 Wireless Connectivity Kit - sold separately). So you buy a smart gate opener and then you need to buy more parts to make it actually smart? That's not very smart. With even more additional parts it can also be powered by a solar panel.
              • Recommended
              8 found this review helpful
              • Verified Purchase
              not seting closed limit.
              i had mighty mull 500 opener that stoped working so i got this 371w and cant use the existing hardware . for some reason i can not program the close position on push to open gate. very frustatating. I have to re install the hardware and reajust everthing. It must have programing feature not only for open limit but for closing.
                awesome purchase should have done it long time ago
                easy to install works great best purchase I've bought in a long time would highly recommend
                  The home owner changed her mind and it was returned. Product was not used
                  Response from MightyMuleSupportFeb 28, 2024
                  Sorry to hear that, having an automatic gate opener is very convenient. Thank you for trying!
                  • Verified Purchase
                  Showing 1-10 of 150 reviews