Master Lock Universal Trailer Coupler Lock – Heavy-Duty Trailer Tongue Lock

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Protect your trailer from theft with the Master Lock Universal Trailer Coupler Lock, a durable security solution designed to fit most standard trailer couplers. This heavy-duty cou pler lock prevents unauthorized hitching by blocking access to the trailer coupler, keeping your cargo, utility, or equipment trailer secure when parked or stored. Built from rugged steel with a corrosion-resistant finish, this coupler lock is engineered to withstand harsh weather conditions and tampering attempts. Its universal design fits most 1-7/8", 2", and 2-5/16" couplers, making it a versatile choice for a wide range of trailers. The bright, highly visible finish acts as a theft deterrent, while the secure locking mechanism ensures reliable protection for your trailer whether it’s parked at a jobsite, campground, driveway, or storage lot. Installation takes only seconds—simply place the lock over the coupler and secure it with the included key lock system. Key Features Universal Coupler Fit – Works with most 1-7/8", 2", and 2-5/16" trailer couplers Heavy-Duty Steel Construction – Provides strong anti-theft protection Highly Visible Deterrent – Bright finish discourages theft attempts Weather Resistant Finish – Protects against rust and corrosion Quick Installation – Locks onto coupler in seconds Ideal for Many Trailer Types – Cargo, utility, boat, and equipment trailers Specifications Specification Details Product Type Trailer Coupler Lock Brand Master Lock Fitment Universal coupler fit Coupler Sizes 1-7/8", 2", 2-5/16" Material Steel Finish Corrosion-resistant coating Lock Type Keyed lock Keys Included Yes Typical Applications This coupler lock is commonly used for: Cargo trailers Utility trailers Boat trailers Equipment trailers RV trailers Landscape trailers It prevents thieves from hooking your trailer to another vehicle and towing it away. 📞 Call/Text: 517-225-1991 🌐 AAATrailer.com Show more