AMPLock Semi Trailer Door Locks
High-Grade Materials for Real Strength
Each lock is made from certified high-grade ductile iron and stainless steel sourced from North America. The materials stand up to cutting, brute force, and theft attempts.
Patented Lock Mechanisms for Added Security
Our locks use patented technology that goes past standard security. Experts test every mechanism thoroughly so you get strong, dependable protection.
Custom-Fit Solutions for Different Trailer Types
We offer custom-fit lock solutions that work with many trailer types, including options built for 53 semi trailers. For related equipment, see our kingpin locks.
Benefits of AMPLock Semi Trailer Door Locks
Resistance-Focused Designs to Deter Theft
These locks are engineered with resistance-focused designs that discourage theft attempts.
Protection Against Cutting and Brute Force
Made from high-grade materials, they resist cutting tools and hold up against forceful attempts to break them.
Durability in Extreme Conditions
Built to last, these locks keep working across temperature extremes and stay reliable in harsh weather.
Frequently Asked Questions
Warranty
The five-year coverage reflects our confidence in the durability and quality of every lock.
Installation
Setup is straightforward, with model-specific instructions. The custom-fit design makes installation quick.
Pricing
Locks start at $132.95, with free shipping and 30-day returns available.
