Insert these locks into the hitch-ball coupler latch or socket on your trailer to prevent theft. Each lock is plated or powder-coated to stand up to weather, so you can use them on outdoor trailers without worrying about corrosion.

Style B and C locks block access to the socket, so no one can hitch your trailer without the key. These locks are a good choice when your trailer is unhitched from your vehicle, such as during drop-offs or while in storage. Style B locks are one piece and compact for easy installation and storage. Made of aluminum, they resist corrosion better than steel locks. Style C locks can also be used on ring-type hitches. Made of two hardened steel pieces, they’re heavy duty and stand up to attempts to cut them open better than aluminum locks.

Choose keyed alike locks if you need several locks that open with the same key. Choose keyed differently locks if you need locks that each open with a different key.