Master Lock 379atpy Universal Trailer Coupler Lock

The Master Lock 379ATPY is a heavy-duty trailer coupler lock designed to protect your trailer from theft when not in use. This universal lock fits three of the most common coupler sizes: 1-7/8 inch, 2 inch, and 2-5/16 inch, making it compatible with a wide range of trailers including utility trailers, boat trailers, and enclosed cargo trailers.

Key Features:

• Universal fit for 1-7/8", 2", and 2-5/16" trailer couplers
• Advanced locking mechanism provides superior pick and pry resistance
• Hardened steel construction resists cutting and sawing
• Bright yellow powder-coat finish provides high visibility to deter theft
• Weather-resistant design for reliable outdoor performance
• Includes two keys for convenience

This coupler lock installs easily over the trailer coupler when disconnected from the tow vehicle, preventing unauthorized coupling. The highly visible yellow coating serves as a visual deterrent while protecting the lock from the elements. Ideal for securing trailers during storage or when parked for extended periods.