Trailer coupler lock secures 2-5/16 in (58.6 mm) cast ball couplers to help deter hitch theft when your RV, trailer, or boat is parked. Built from heavy carbon steel with a thick-wall nesting design, it shields the coupler from prying and drilling attempts. Powder-coated protection, a dust cap, and a smooth-operating lock keep it ready for outdoor storage and frequent towing stops.

Protecting your trailer shouldn’t slow you down. This hitch lock is designed for quick on/off use at campgrounds, storage lots, driveways, and marinas while adding a strong physical barrier around the coupler. The nesting shape covers critical access points, and the corrosion-resistant finish supports year-round outdoor conditions. Keep one key on your tow vehicle and spares where you need them. Grab yours today and lock up before the next stop.