Master Lock Universal Trailer Coupler Towing Security
Locking your trailer coupler is the best way to keep your trailer safe. A coupler lock protects your trailer by making it nearly impossible for a thief to hook up your trailer to their vehicle.
The Fastway® FORTRESS™ keeps your trailer secure. It is the toughest coupler lock available, made from the highest corrosion resistant material and fits virtually every coupler style. In fact, after months of testing, we haven’t found a coupler it doesn’t fit. The lock has a hinged cover, protecting it from dirt, debris, rust, water, and ice. With its thick housing, incredible strength, and a lock that’s almost impossible to pick, you can be confident your trailer is safe.
The most secure and universal trailer coupler lock available, fits virtually all 1-7/8”, 2”, and 2-5/16” tongue type trailer couplers. Made from the highest quality corrosion resistant materials, the unique design uses a hardened steel reversible “U” shaped shackle that allows the lock to fit almost any trailer coupler style, and is easily accessed from the front.
Locking and unlocking the FORTRESS is quick and easy with a front-facing key hole so there isn’t anything to reach around to turn the key. The lock cylinder is smooth, making it an easy key turn. The solid engagement of the dual locking pins into both ends of the shackle provides the most security and peace of mind you can get in a coupler lock.