Discover Our Hitch Locks
A hitch lock is the simplest way to stop a thief from towing your trailer when it sits parked and unattended. Our hitch locks slide into the receiver tube and act as a dedicated receiver lock that blocks the pin. We machine each one from ductile iron and stainless steel for lasting anti-theft trailer security.
5/8" Diameter Hitch Locks
Our 5/8 hitch lock options fit the receiver tubes on most full-size trucks and SUVs running Class III, IV, and V hitches. This group gives you a standard model, an adjustable version for variable receiver depths, and a folding pole option that reaches obstructed pin holes. Each one installs as a locking hitch pin, swapping your factory receiver pin for a hardened, key-controlled hitch pin lock that can't be pulled by hand.
1/2" Diameter Hitch Locks
Lighter setups on Class I and II receivers call for the 1/2 hitch lock, sized for the narrower 1/2 inch receiver tube. You can pick a standard unit or a folding pole version, and both carry the same CNC-machined body and anti-pick disk cylinder as our larger receiver lock models. That same controlled key even extends to our trailer coupler locks, so a single trailer hitch lock setup can secure your whole rig.
Why Choose AMPLock for Hitch Locks?
CNC-Machined Anti-Theft Construction
Every CNC-machined hitch lock starts as ductile iron paired with stainless steel moving parts, the same build behind our full range of trailer locks. Inside sits an anti-pick disk lock with millions of unique key combinations, so it shrugs off picking, drilling, and brute force. That's what turns a simple pin into a genuine anti-theft hitch lock and delivers real hitch lock security.
Keyed-Alike System Across All Locks
Our keyed alike system lets one key run every AMPLock you own, from hitch locks to coupler and kingpin locks. We can match a new order to a key number you already carry, so growing your setup never means growing your key ring. It's a single hitch lock key that scales into a complete trailer lock system.
Free Shipping and 5-Year Warranty
Every order qualifies for free shipping across the United States and Canada, and you've got 30 days to send anything back if it isn't right. We also stand behind each lock with a 5-year warranty once you register, because real trailer security shouldn't hide behind fine print. That's the kind of hitch lock warranty that shows how these locks are built to last.
Shop Hitch Locks at AMPLock Today
Leaving a trailer hooked up and unlocked is an open invitation, and the right hitch lock shuts that door for good. When you shop hitch locks from AMPLock, you get CNC-machined, keyed-alike protection backed by a 5-year warranty and free shipping. Every hitch lock price sits between $110 and $125, so serious security stays within reach. Ready to buy a hitch lock built for your exact receiver? Browse the collection above and lock down your rig today.
Frequently Asked Questions About Hitch Locks
What Diameter Hitch Lock Fits a Standard Receiver?
Most full-size trucks and SUVs use a 5/8 inch receiver, which pairs with our 5/8" hitch locks on Class III, IV, and V hitches. Lighter vehicles with Class I and II receivers take the 1/2 inch size instead. Check the hole in your receiver tube before you order so you match the pin diameter exactly.
What Materials Are AMPLock Hitch Locks Made From?
Each lock uses a ductile iron body with stainless steel moving parts, sourced from North America. A patented push-and-lock mechanism lets you install it by hand without tools. Inside, an anti-pick disk cylinder keeps the lock secure against picking and drilling.
Can One Key Operate Multiple AMPLock Products?
Yes. Our keyed-alike system lets a single key run your hitch lock, coupler locks, and kingpin locks together. You can request matching at checkout, including a retroactive match to a key number from an earlier AMPLock purchase.
Does AMPLock Offer Free Shipping on Hitch Locks?
We ship every hitch lock free across Canada and the United States, with 30-day free returns if it isn't the right fit. Each lock also carries a 5-year warranty once you register it.
What Is the Difference Between Standard and Folding Pole Hitch Locks?
A standard hitch lock drops straight into the receiver tube, while a folding pole model adds extended reach for recessed or hard-to-reach pin holes. Both share the same CNC-machined construction, disk lock cylinder, and keyed-alike compatibility, so the real difference is just how easily you can get to the pin.
