Trailer Hitch Locks for Coupler, Heavy-Duty Trailer Tongue Lock, Steel Trailer Hitch Ball Locks for 2-5/16", 2 inch, 1-7/18" Coupler on RV/Camper/Boat/Dump/Cargo/Utility Trailers, 4 Keys&4 Dust Caps

Enhanced Dimensions. Superior Fit for More Coupler Style - Redesigned hitch lock housing expands coverage by 30% vs standard locks, with reinforced width and height to create a fortress-grade seal. This enhanced design also delivers exceptional versatility, allowing a single trailer hitch lock to effortlessly accommodate numerous popular trailer coupler styles.

Unbeatable Anti-Theft Protection - This heavy-duty trailer tongue lock build isn’t just for show. The trailer hitch lock can withstand blows from sledgehammers, prying attempts with crowbars, and even cutting efforts from power tools. Unlike flimsy rv hitch locks that bend or break easily, this steel coupler lock stands firm, giving you peace of mind whether parked at campsites or in your driveway.

Advanced Cylinder Technology - The unique keyway and internal mechanism of the trailer coupler lock resist lock-picking tools, a common tactic for quick thefts. Meanwhile, users will appreciate the smooth, jam-free operation—insert the key, turn, and lock/unlock in seconds, even in cold or wet weather, without the stiffness of cheaper camper locks.

Enhanced Size Compatibility - Fits More Coupler Types.Improved to accommodate a wider range of couplers, this lock is designed for 2-5/16", 2", and 1-7/8" sizes, ensuring a snug fit for most standard trailers. Whether you own an RV, utility trailer, or boat trailer, the trailer hitch lock adapts seamlessly to your needs. (Note: For special-model couplers, check for compatibility before purchase.)

Multi-Layer Rust Resistance - Built to Last in All Weather. Boasting a durable powder-coated finish with multi-layer rust protection, this heavy duty trailer lock withstands rain, snow, UV rays, and extreme temperatures. The hitch coupler lock is engineered for long-term outdoor use, ensuring consistent performance and a sleek appearance—no more worrying about corrosion or wear.

Install or Unlock it in just 10 seconds—no need for extra tools or technical skills. Just simple turn 90° to release the cyliner, and then hand press the lock core.