Best Overall Trailer Lock

The Master Lock Universal Trailer Lock is the ultimate solution for securing your trailer. Designed to fit 1-7/8", 2", and 2-5/16" couplers, this lock ensures compatibility with a wide range of trailers. With a 4.5-star rating from over 14,728 reviews, it's a trusted choice among users.

Its robust construction and chrome exterior finish provide both durability and resistance against tampering. The red color adds visibility, deterring potential thieves. It's not just a lock; it's peace of mind for your trailer.