Coupler Locks

California Immobilizer universal style trailer coupler locks offer the utmost in solid security for your trailer. Our universal coupler lock, bulldog type lock and surge coupler lock offer wraparound steel construction making them extremely difficult to remove without the proper key. Unlike other universal trailer coupler locks, ours are hand made in our shop one piece at a time with careful attention to welds and construction. Our universal trailer coupler locks will outlast most all other parts of your trailer!