$199.00
- %

Due to current government tariffs, a temporary surcharge of 10% will be applied to this product. The final price will be shown during checkout.

Mighty Mule FM143 automatic gate lock delivers reliable automatic gate lock security with easy DIY gate lock installation, securing your single or dual gate every time it’s activated. Designed for you to enjoy peace of mind in high-wind areas and gates over 8 feet long, this gate lock accessory integrates seamlessly with existing Mighty Mule or Linear Pro openers.

  • Unlocks and locks automatically when your gate opener is activated—no extra steps required.
  • Works with all single and dual Mighty Mule and Linear Pro automatic gate swing openers for versatile compatibility.
  • Provides maximum stability and security—ideal for gates over 8 feet long and high-wind environments.
  • Comes with two keys for manual release of the gate lock whenever you need quick access.
  • Easily wires directly into the gate opener’s control box for a straightforward DIY installation.
  • Backed by a 12‑month Mighty Mule warranty and lifetime technical support for lasting reliability.

Installation Manual

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Shop with confidence!
We do not save or store your credit card number!

FREE Shipping On All Continental U.S. Orders Over $350

Best Customer & Technical Support in the Industry

Easy DIY Installation Tutorials, Resources, and Support

Customer Reviews

Technical Support on Products

Our technical support team is dedicated to assisting you with any issues or questions you may encounter. Additionally, we leverage cutting-edge technologies to facilitate the seamless installation of your gate opener.

Help Center

Comprehensive online knowledge desk that will answer most of your questions.

Help Desk

BILT

3D Installation Guide on your phone.

Manuals

Manuals to products. See Manuals

Installation Videos

Videos to help. See Videos

FREE Shipping On All Continental U.S. Orders Over $350

Best Customer & Technical Support in the Industry

Easy DIY Installation Tutorials, Resources, and Support