Trailer coupler lock helps deter hitch theft by covering your cast coupler and securing the safety chains in one clamp-on unit. Designed to fit 2 in (50.6 mm) and 2-5/16 in (58.6 mm) cast air flow couplers, it adds a visible physical barrier at the hitch point to reduce tampering when parked. The reinforced carbon steel body and protective coating are built for outdoor use on RVs, trailers, and boats, with quick one-handed locking and 3 included keys.

Protecting a trailer, RV, or boat starts at the coupler—an exposed hitch is an easy target. This rust-resistant hitch lock is built for frequent outdoor parking, storage lots, campsites, and driveways, adding a durable layer of anti-theft protection without complicated setup. The coated steel housing is made to handle weather, while the compact clamp-on design keeps operation simple when you’re on the move. Grab yours today and lock up your coupler before you leave it unattended.