Master Lock’s® Adjustable Trailer Coupler Lock for latch-style couplers prevents tow away theft and keeps the coupler latch secure while towing. The stainless steel lock and shackle with a covered keyway offers ultimate corrosion resistance and protection from moisture, dirt, and grime. Shackle adjusts to fit coupler latch widths of 5/8" (most standard couplers), 1", and 2".
