---
product_id: 4006826
title: "Automatic Gate Lock"
brand: "mighty mule"
price: "€ 186.13"
currency: EUR
in_stock: null
reviews_count: 8
category: "Mighty Mule"
url: https://www.desertcart.ie/products/4006826-automatic-gate-lock
store_origin: IE
region: Ireland
---

# 2500 lbs force resistance Compatible with single & dual gates DIY easy installation Automatic Gate Lock

**Brand:** mighty mule
**Price:** € 186.13
**Availability:** ❌ Out of Stock

## Summary

> 🔐 Lock in security, unlock your peace of mind.

## Quick Answers

- **What is this?** Automatic Gate Lock by mighty mule
- **How much does it cost?** € 186.13 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/4006826-automatic-gate-lock)

## Best For

- mighty mule enthusiasts

## Why This Product

- Trusted mighty mule brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless DIY Setup:** Designed for quick, hassle-free installation with your Mighty Mule or GTO/Pro gate opener.
- • **Peace of Mind Warranty:** Backed by a 12-month warranty and expert technical support for worry-free ownership.
- • **Universal Compatibility:** Works flawlessly with all single and dual Mighty Mule and GTO/Pro swing gate openers.
- • **Seamless Automatic Locking:** Locks and unlocks automatically with your gate’s movement—no extra steps needed.
- • **Unmatched Security Strength:** Withstands up to 2500 lbs of force to keep your property truly secure.

## Overview

The Mighty Mule Automatic Gate Lock is a heavy-duty electric lock engineered to automatically secure single or dual gates, providing robust protection against up to 2500 lbs of force. Compatible with Mighty Mule and GTO/Pro gate openers, it offers easy DIY installation and is backed by a 12-month warranty and technical support, making it the ultimate upgrade for enhanced property security.

## Description

Product Description Elevate the security of your property with the Mighty Mule Automatic Gate Lock (FM143). Designed for use with Mighty Mule Automatic Gate Openers, this heavy-duty electric gate lock provides a reliable and robust solution to keep unwanted guests out, ensuring your peace of mind. Whether you have a single or dual gate installed with a Mighty Mule automatic gate opener kit, this Automatic Gate Lock automatically secures your gate, offering unwavering stability and top-tier security for your home, farm, or ranch. Transform a variety of gate types, including ornamental, chain link, tube, vinyl, and wood gates, with the Mighty Mule Automatic Gate Lock. Its user-friendly DIY installation process, paired with an easy-to-follow guide, allows for effortless setup. This Mighty Mule Automatic Gate Lock seamlessly pairs with both single swing and dual swing gate openers from Mighty Mule and GTO, enhancing your gate control system with ease. The Mighty Mule Gate Opener Lock is just one of the many Mighty Mule accessories designed to optimize the functionality and security of your gate opener system. Rest assured with the included 12-month Mighty Mule Warranty and access to full technical support for any questions or assistance you may need. Please note that mounting hardware is not included with the Mighty Mule Automatic Gate Lock. Elevate your property's security with this reliable and convenient gate lock solution from Mighty Mule. From the Manufacturer The Automatic Gate Lock provides maximum stability and security on Mighty Mule Gate systems, recommended for gates over 8 ft. long, high wind areas or additional reinforcement to prevent against unwanted intrusion.

Review: The perfect solution!!! - This is exactly what I needed to secure my gate. My dogs had figured out that they could push the gate open just enough to escape. The gate lock solved that problem. It latches securely and keeps the boys at home where they belong. Installation was very easy. I had to buy a couple of U-bolts for my installation, but it works like a dream. I have found that the latching tooth needs a shot of lube occasionally to keep it working properly. I'm sure the manufacturer will say its not necessary but, in my case it is. I found that the lock was not latching consistently after being in use for a while. An occasional shot of WD-40 or equivalent solves the problem and it works perfectly.
Review: Works great - Works great.

## Features

- The Automatic Gate Lock provides peace of mind and added security for your single or dual gate. Unlocks and locks automatically as the gate is activated.
- Provides secure protection to withstand up to 2500 lbs. of force, providing stability and security.
- Easy DIY (Do It Yourself) installation for your Mighty Mule Automatic Gate Opener system.
- The Mighty Mule Automatic Gate Lock is compatible with all single and dual Mighty Mule or GTO/Pro Automatic Gate Swing Openers.
- Backed by a 12 month Mighty Mule Warranty and Technical Support.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Mighty Mule |
| Color | Black |
| Exterior Finish | Black |
| Item Weight | 2.7 Kilograms |
| Material | Alloy Steel |
| Product Dimensions | 12.25"L x 7.25"W x 2.5"H |

## Product Details

- **Material:** Alloy Steel
- **Brand:** Mighty Mule
- **Color:** Black
- **Exterior Finish:** Black
- **Product Dimensions:** 12.25"L x 7.25"W x 2.5"H

## Images

![Automatic Gate Lock - Image 1](https://m.media-amazon.com/images/I/81pJXxnWvXL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Does this lock work with the Mighty Mule FM-200 Gate Opener?**
A: Yes it does.  Simply hook it up to the lock+ and lock- on the control board.  Disregard the additional circuit boards that are included.

**Q: Will I have to have a positive stop installed on my slave gate to make the gate lock work on my dual gates?i can take most of the play out of the gate**
A: Yes

**Q: Can this be used with smart devices?**
A: This lock is activated through the circuit board of the primary gate opener arm.  If you have a gate opener that can be used with smart devices, this lock can be also.

**Q: Will this lock work with FM350 gate opener?**
A: The answer is Yes and No, please let me explain. Yes it will work with the FM350 but if you have a lightweight gate it may be impossible for it to latch regularly. This lock requires approximately 10lbs. of force to latch. There are other gate locks that better handle the slow speed and relative low force of the FM350. Try the Estate Swing automatic gate lock, available on Amazon, it requires only 1/2Lb. of force to latch and is great for both low mass gates and slower speed gates.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The perfect solution!!!
*by D***H on November 30, 2017*

This is exactly what I needed to secure my gate. My dogs had figured out that they could push the gate open just enough to escape. The gate lock solved that problem. It latches securely and keeps the boys at home where they belong. Installation was very easy. I had to buy a couple of U-bolts for my installation, but it works like a dream. I have found that the latching tooth needs a shot of lube occasionally to keep it working properly. I'm sure the manufacturer will say its not necessary but, in my case it is. I found that the lock was not latching consistently after being in use for a while. An occasional shot of WD-40 or equivalent solves the problem and it works perfectly.

### ⭐⭐⭐⭐⭐ Works great
*by B***D on November 30, 2025*

Works great.

### ⭐⭐⭐⭐⭐ Keeps the honest people out!
*by R***R on January 15, 2015*

Someone decided they needed to be on my property despite the gate, fence, barbed wire, and two retarded dogs. After I came home and saw my gate bent open I decided this was no longer too expensive to get. This has two wires that you have to figure out how to get to the black box. Once you open up the black box you can stab around pretty blindly and still hook this up pretty easily. I am a complete goober and managed to make it work! Believe it or not, it makes a notable difference in the (false) sense of security you have with a gate. It makes a person have to WANT to come on to your property instead of just pushing the gate until it yields. It will NOT yield with this in place. Your gate will physically break before this gives out. It is very solid BUT dependent greatly on your method of connecting it to your gate. I did not use their hardware. Instead, I used two "U" bolts that lined up perfectly with the holes and then "fixed" the nuts so they would not easily come off. All in all, I am very happy with this lock. It works great.

## Frequently Bought Together

- Automatic Gate Lock (FM143) for Mighty Mule Automatic Gate Openers , Black
- Mighty Mule Wireless Digital Keypad (FM137), Black, 25

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-17*