Ball Coupler Lock - Flat Lip Design/standard trailer
U-Haul trailer locks built to hold
Renting or owning a U-Haul trailer means your gear travels with you, and so does the risk of theft. AMPLock secures every weak point on a U-Haul setup with locks forged from high-grade ductile iron and stainless steel, all sourced in North America. Each one is made to shrug off cutting, prying and tampering in any weather.
Ball coupler locks for U-Haul trailers
Our ball coupler locks clamp over the coupler so no one can hitch your U-Haul and drive away. The molded ductile iron and stainless steel body resists force, and many owners pair it with our trailer door lock to keep the cargo side just as tight.
Kingpin locks for U-Haul fifth-wheel trailers
For fifth-wheel U-Haul units, our heavy-duty kingpin locks block the coupling point completely. They hold up in harsh conditions and pair well with our gooseneck trailer locks when you want a second layer of protection.
Hitch locks for U-Haul trailers
Our hitch locks guard the receiver so the trailer stays put while it is mounted. Built from North American materials, they bring the same resistance-first security across the whole range.
Why AMPLock protects U-Haul trailers better
Strength that lasts
Every U-Haul lock we make is cast from high-grade ductile iron and stainless steel. That build handles extreme temperatures and repeated attack attempts without giving way, so your trailer stays where you left it.
Patented locking cylinders
We engineer our locks around patented disc cylinders that go well past a basic keyway. With millions of key combinations, they turn picking and drilling into a losing effort for anyone eyeing your U-Haul.
A precise fit for U-Haul trailers
Each lock is machined to seat cleanly on U-Haul couplers, hitches and doors. The tight fit leaves no gap for tools to grab, and installation takes seconds with a simple push and lock motion.
Lock your U-Haul trailer with AMPLock
A loaded U-Haul is an easy prize when it sits unattended. Rather than trust a hardware-store padlock, cover the coupler, hitch and doors with security engineered to defeat determined thieves. Choose the AMPLock model that matches your trailer and give your cargo the protection it deserves.
U-Haul trailer lock questions
Which U-Haul trailer locks does AMPLock make?
We build ball coupler locks, kingpin locks and trailer door locks for U-Haul trailers. Each model uses a resistance-first design in ductile iron and stainless steel for lasting durability and theft protection.
Do these locks fit every U-Haul model?
Our U-Haul locks are shaped to fit a wide range of U-Haul trailers, and custom-fit options cover the rest. If you are unsure which model suits your trailer, contact us and we will match you to the right one.
What is the return and warranty policy?
Every U-Haul trailer lock ships with a 30-day free return window and a 5-year warranty. If the lock is not right for you, send it back within 30 days, and count on years of covered protection either way.
