---
product_id: 223177564
title: "FM143 Automatic Gate Lock for Mighty Mule Automatic Gate Openers"
brand: "mighty mule"
price: "€ 592.56"
currency: EUR
in_stock: true
reviews_count: 2
url: https://www.desertcart.es/products/223177564-fm143-automatic-gate-lock-for-mighty-mule-automatic-gate-openers
store_origin: ES
region: Spain
---

# 2500 lbs force resistance Auto lock/unlock sync DIY screw-in installation FM143 Automatic Gate Lock for Mighty Mule Automatic Gate Openers

**Brand:** mighty mule
**Price:** € 592.56
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in security, unlock peace of mind.

## Quick Answers

- **What is this?** FM143 Automatic Gate Lock for Mighty Mule Automatic Gate Openers by mighty mule
- **How much does it cost?** € 592.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/223177564-fm143-automatic-gate-lock-for-mighty-mule-automatic-gate-openers)

## 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 Setup:** Simple DIY screw-in installation designed for busy professionals.
- • **Unmatched Security:** Withstands up to 2500 lbs of force for ultimate gate protection.
- • **Seamless Automation:** Automatically locks and unlocks with your gate opener—no extra steps needed.
- • **Universal Compatibility:** Works flawlessly with all single and dual Mighty Mule and GTO/Pro gate openers.
- • **Built for Tough Conditions:** Ideal for gates over 8 feet, animal enclosures, and high wind areas.

## Overview

The Mighty Mule FM143 Automatic Gate Lock enhances your gate opener system by providing automatic locking and unlocking synchronized with gate movement. Engineered to resist up to 2500 lbs of force, it ensures robust security for single or dual gates over 8 feet. Designed for easy DIY installation, it’s compatible with all Mighty Mule and GTO/Pro automatic gate openers, making it the go-to choice for professionals seeking reliable, hassle-free gate security.

## Description

Mighty Mule FM143 Automatic Gate Lock for Mighty Mule Automatic Gate Openers

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 2.7 Kilograms |
| Installation Type | Screw-In |
| Recommended Uses For Product | gates over 8' long, animal enclosures, high wind areas, use with fm700 & fm702 openers |
| UPC | 728639275315 735090851132 090835071009 |
| Global Trade Identification Number | 00090835071009 |
| Manufacturer | Mighty Mule |
| Department | Gate Hardware |
| Item model number | FM143 |
| Product Dimensions | 31.12 x 18.42 x 6.35 cm; 2.7 kg |
| ASIN | B0009SS13Q |

## Product Details

- **Material:** Alloy Steel
- **Brand:** Mighty Mule
- **Colour:** One Color
- **Exterior Finish:** Black
- **Product Dimensions:** 31.1L x 18.4W x 6.4H Centimeters

## Images

![FM143 Automatic Gate Lock for Mighty Mule Automatic Gate Openers - Image 1](https://m.media-amazon.com/images/I/81pJXxnWvXL.jpg)

## 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

### ⭐ Very bad product
*by R***I on 25 October 2017*

Not good and not working after a week of fixing.wasted my money

### ⭐ Too costly
*by R***K on 1 October 2022*

Not worth 20000 in india. It's worth 2500 to 3000 INR. That's it. I have not used it but it do not have any excellent feature worth 20k

## 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 Spain*
*Store origin: ES*
*Last updated: 2026-03-17*