THE EQUIPMENT LOCK COMPANY | Heavy Duty Cargo Door Lock with 4-Digit Combination

Secure protection for containers and trailers

The Equipment Lock Company presents a heavy duty cargo door lock designed to guard valuable cargo on sea containers, trailers, and trucks. Crafted from robust steel and finished in a durable red powder coating, this device is built to withstand demanding environments while keeping access controlled by a four‑digit combination you choose yourself. No keys are required, making maintenance and access management simpler for teams that share equipment across sites.

Key benefits at a glance

• Fits vertical door bars spaced 9 ¾” to 16” apart, with an extension kit available separately to cover more door configurations.
• Maximum security by locking the innermost vertical bars together, supported by a tamper‑resistant tubular pin tumbler design.
• Four-digit combination lock designed for multiple users who need access without distributing keys, reducing the chances of misplacement.
• Easy operation without mounting: two halves align with the door’s locking bars, slide together, and secure by pressing the locking button or turning the dials.
• Rugged build with powder coating and a steel locking structure engineered to withstand substantial force, plus a distinctive red finish for visibility.

Real‑world use cases

• Shipping containers in ports or yards benefit from a reliable, keyless locking system that’s quick to deploy between shipments.
• Semi trailers and over‑the‑road trucks gain an extra layer of protection on idle runs, in transit, and at remote job sites.

How to use

Split the lock halves and align them on each door’s locking bar. Slide the tubes together, then secure by pressing the locking button or setting the combination. No mounting or separate keys required—an efficient solution when access needs to be shared among team members.

Durability and quality you can rely on

Each unit receives a powder coating before a sequence of quality checks, ensuring a long‑lasting finish and dependable operation in varied weather conditions. The combination design offers controlled access without the clutter of multiple keys, supporting easier fleet and site security management.