Heavy Duty Cargo Door Lock for Semi Trucks and Trailers

The Heavy Duty Cargo Door Lock is our top-selling device, designed to fit vertical cargo door bars ranging from 9 ¾” to 16” apart (extension kit available, sold separately). It is the perfect security solution for sea and construction site storage containers as well as over-the-road trucks.

This heavy duty door lock system is specifically engineered to provide maximum security for semi-trailers and sea containers by locking the innermost vertical locking bars together. With its tamper-resistant tubular pin tumbler lock design, it offers the ultimate peace of mind while you’re away.

For those in need of a combination security lock, the four-digit combination locks provide an ideal solution for multiple users who require access to containers or equipment without the hassle of managing several sets of keys.

Installation of the Cargo Door Lock is a breeze with no mounting required. Simply separate the two halves of the lock, aligning them so that the lock mechanism and holes are both facing downward, and then install one half of the Cargo Door Lock on each door’s locking bar. Slide the two halves together by inserting the smaller tube into the larger tube and secure the Cargo Door Lock tightly on both doors' locking arms. To finish, depress the locking button with the key removed or turn the dials.

Quality is of the utmost importance, as evidenced by the lock's signature red finish and steel-locking structure that can withstand thousands of pounds of force. Each lock undergoes a process of powder coating and rigorous quality assurance checks to ensure security and reliability.

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