Proven Lock 2517-D1

Proven Lock 2517-D1 is a heavy-duty trailer coupler lock designed to fit Demco style cast 2 5/16" trailer couplers, a common setup on enclosed car trailers and other heavy-duty builds. It provides a snug, precision fit over the coupler to deter theft and prevent unauthorized hitching, and because of its tailored design it secures around safety chain hooks in many cases for added protection. The lock uses a high-security tubular key system (Cobra 7 standard) that's resistant to common picking, and it's built to perform in the field with rugged, long-lasting construction.