---
product_id: 79443014
title: "Mighty Mule Automatic Gate Opener for Heavy Duty Single Swing Gates for 18 Feet Long or 850 Pounds (FM500)"
brand: "mighty mule"
price: "$U11250"
currency: UYU
in_stock: false
url: https://www.desertcart.uy/products/79443014-mighty-mule-automatic-gate-opener-for-heavy-duty-single-swing
store_origin: UY
region: Uruguay
---

# 12V battery backup DIY installation kit Heavy duty for 850 lbs gates Mighty Mule Automatic Gate Opener for Heavy Duty Single Swing Gates for 18 Feet Long or 850 Pounds (FM500)

**Brand:** mighty mule
**Price:** $U11250
**Availability:** ❌ Out of Stock

## Summary

> 🚪 Unlock effortless security with the mightiest gate opener in town!

## Quick Answers

- **What is this?** Mighty Mule Automatic Gate Opener for Heavy Duty Single Swing Gates for 18 Feet Long or 850 Pounds (FM500) by mighty mule
- **How much does it cost?** $U11250 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/79443014-mighty-mule-automatic-gate-opener-for-heavy-duty-single-swing)

## 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

- • **Smart Safety Tech:** UL-approved obstruction sensing and adjustable auto-close for peace of mind
- • **Powerful & Reliable:** Handles gates up to 18 ft or 850 lbs with commercial-grade strength
- • **Backed by Confidence:** 18-month warranty plus expert technical support keeps you covered
- • **Effortless DIY Setup:** Comes with interactive video and all hardware—no electrician or welding needed
- • **Energy-Savvy & Solar Ready:** Compatible with 10W solar panel for up to 30% energy tax credit savings

## Overview

The Mighty Mule FM500 is a heavy-duty automatic gate opener designed for single swing gates up to 18 feet long or 850 pounds. Featuring a 12V battery backup, UL-approved obstruction sensing, and adjustable auto-close, it offers reliable, energy-efficient operation. The all-inclusive DIY kit includes an installation video and hardware, enabling easy setup without professional help. Compatible with solar power for additional savings, it’s backed by an 18-month warranty and dedicated support.

## Description

Product Description               Automatic opener for single gate use, opens gates up to 18' long & up to 850 lbs, solar compatible, 12V battery backup for power failure, kit includes: opener, entry transmitter, mounting hardware, 12V transformer, control box , installation instructions & video, standard features include adjustable automatic closing 0 to 120 seconds & adjustable obstruction sensing.                  From the Manufacturer               Have you ever wanted to be able to open your gate with the touch of a button? With a Mighty Mule automatic gate opener, you can, and you can install it yourself! The Mighty Mule FM500 Single Gate Opener is a heavy duty, commercial grade swing gate opener that is very easy to install. It is ideal for gates weighing up to 850-Pounds, or up to 18-Feet long. The FM500 comes with a standard Do-It-Yourself kit, which includes an installation video, detailed manual, battery, one transmitter, all mounting hardware, and an 18 V AC transformer. This durable opener features Soft Start/Soft Stop, Adjustable Auto Close (0-120 Seconds), Adjustable Gate Activation Alert, UL approved Obstruction Sensing Systems, as well as an extra large Control Box that is prewired for an optional second battery (we recommend a second battery for solar and for dual applications). The 12 Volt, DC-powered low-voltage system is powerful, dependable and durable. Ideal for gates that open into the property (standard in kit) or with gates opening out from the property using a Push-To-Open Bracket FM148 (sold separately). Low Voltage wire req'd for most installations (sold separately).

## Features

- The FM500 is rated the Best in Class for Heavy Duty Gate Operators.
- Mighty Mule's strongest single swing gate opener for gates up to 18 ft. long or 850 lbs.
- Perfect for all gate types including ornamental, chain link, tube, panel, vinyl and wood.
- Easy DIY (Do It Yourself) installation that includes an interactive DVD for added assistance.
- All-inclusive kit that does not require welding or an electrician.
- 30% Residential Energy Efficient Property Tax Credit available! Residential home owners can use this credit on a new operator system, accessories and installation with the purchase of a Mighty Mule 10-watt Solar Panel (FM123).
- Backed by an 18 month Mighty Mule Warranty and Technical Support.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Mighty Mule |
| Part Number | FBA_FM500 |
| Item Weight | 30.5 pounds |
| Product Dimensions | 17 x 46 x 7 inches |
| Item model number | FM500 |
| Is Discontinued By Manufacturer | No |
| Size | 12 |
| Power Source | corded-electric |
| Voltage | 12 Volts |
| Item Package Quantity | 1 |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Warranty Description | Limited 18 Month Warranty (from date of purchase) |

## Images

![Mighty Mule Automatic Gate Opener for Heavy Duty Single Swing Gates for 18 Feet Long or 850 Pounds (FM500) - Image 1](https://m.media-amazon.com/images/I/81Kw72N1E3L.jpg)
![Mighty Mule Automatic Gate Opener for Heavy Duty Single Swing Gates for 18 Feet Long or 850 Pounds (FM500) - Image 2](https://m.media-amazon.com/images/I/81NMtpMMTYL.jpg)
![Mighty Mule Automatic Gate Opener for Heavy Duty Single Swing Gates for 18 Feet Long or 850 Pounds (FM500) - Image 3](https://m.media-amazon.com/images/I/91myJpR-JEL.jpg)
![Mighty Mule Automatic Gate Opener for Heavy Duty Single Swing Gates for 18 Feet Long or 850 Pounds (FM500) - Image 4](https://m.media-amazon.com/images/I/A1-s-GCBy+L.jpg)
![Mighty Mule Automatic Gate Opener for Heavy Duty Single Swing Gates for 18 Feet Long or 850 Pounds (FM500) - Image 5](https://m.media-amazon.com/images/I/6152iLh80TL.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.uy/products/79443014-mighty-mule-automatic-gate-opener-for-heavy-duty-single-swing](https://www.desertcart.uy/products/79443014-mighty-mule-automatic-gate-opener-for-heavy-duty-single-swing)

---

*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-19*