Getting a good trailer hitch lock is key if you want to make sure that your trailer is kept safe, secure, and ready to go at a moment’s notice. You might think that an entire trailer is safe purely because of its size, but that is not always the case: not only have thieves managed to steal them before on many occasions, but there is always a chance that somebody can mistake your trailer for their own. Before you know it, it will be hitched up to somebody else’s vehicle and never seen again, whether they took it intentionally or just made a mistake. Security always matters, even for something as large and bulky as a heavy trailer.
View the Best Trailer Hitch Lock, Below.
- REESE Towpower 72783 Trailer Hitch Lock
- AMPLock U-BRP2516 RV/Trailer Coupler Lock
- Master Lock 2866DAT Trailer Hitch Lock
- Master 389DAT Lock Couplers Trailer Lock
- Cocoweb HL-58BK C-Lock Heavy Duty Hitch Pin
- Master Lock 377KA Trailer Hitch Lock
- Connor Trailer Hitch Lock
- Tow Ready 63228 Gorilla Guard’ Coupler Lock
- motormic Trailer Hitch Lock
- Trimax UMAX100 Universal Trailer Lock
1. REESE Towpower 72783 Trailer Hitch Lock
This universal trailer hitch lock has a strong aluminum body that connects to a lock bar made of heavy-duty steel, giving it all of the durability you might need. The Ratchet-based design gives it eleven separate locking potions, and it can fit a range of different coupler sizes, making it useful for a variety of trailer types. To prevent theft, it is even designed to resist most forms of lock picking as well as physical attacks such as prying, and can only be opened with one of the two included keys. Thanks to the simple setup and locking process, you can have your trailer secured on very short notice.
This aluminum and steel trailer hitch lock may be fairly simple in design, but it offers straightforward, easy-to-set-up protection that can't simply be broken open or picked in a single attempt. The spare key also gives you a backup option if you lose the original.Check Price on Amazon ➞
2. AMPLock U-BRP2516 RV/Trailer Coupler Lock
This caravan and trailer coupler lock is made with rust-resistant materials that can endure bad weather without showing any signs of damage or corrosion, all while still being easy to install thanks to the special "push and lock" system used to set it up. All of the materials used in its construction are high-quality and reliable, and each lock has a unique key that can't be bypassed by a thief buying their own copy of the same lock model. Unlike a lot of similar designs, this AMPLock lock is also supposed to mold to the shape of your coupler, making it more difficult for thieves to get them off by force.
Although you need a certain size of coupler to get the most out of this trailer hitch lock, it is still perfect for the right types of vehicles and trailers, making it incredibly difficult for a thief to try and get the lock off without damaging the connection itself.Check Price on Amazon ➞
3. Master Lock 2866DAT Trailer Hitch Lock
This very simple trailer hitch lock uses a straightforward, no-nonsense design that secures the couplers together without standing out too much, making it less likely to attract opportunists who are looking for signs of a valuable target. The simple push-to-lock mechanism makes it easy to set up, but you still need the key to actually lock it, which stops the lock from being taken and used without your permission. Not only that, but it is designed with an excellent seal and a watertight cap to prevent damage from bad weather conditions, as well as a 4-pin tumbler to make it much harder for somebody to pick this trailer hitch lock.
The locking hitch pin used in this design is perfect for two major sizes of receiver, and the lock as a whole is durable enough to survive physical and natural damage without crumbling away and leaving your trailer unprotected. Not only that, but it is extremely easy to use.Check Price on Amazon ➞
4. Master 389DAT Lock Couplers Trailer Lock
This universal Master Lock trailer hitch lock offers a corrosion-resistant body and a simple installation process, letting you quickly lock up your trailer hitch without having to fiddle with too many pieces. The advanced locking mechanism used on the inside of the durable outer shell can prevent picking, as well as resistance against prying attacks or other types of physical damage. Each one is designed to accommodate a range of different coupler sizes, meaning that it can be useful for people who don't want to carry multiple trailer locks just in case. As long as you have the key, it can be locked and unlocked easily, so it is much less stressful to deal with.
This trailer hitch lock design is built using great materials that keep it safe, secure, and ready to use, even in terrible weather conditions that would make other models much less reliable.Check Price on Amazon ➞
5. Cocoweb HL-58BK C-Lock Heavy Duty Hitch Pin
The great protection offered by this trailer hitch lock pin lets it protect all 5/8-inch receiver designs without an issue, offering a huge range of protective features: a waterproof cap, grime and dirt resistance, and even the ability to handle rust from long-term exposure to water. Installation is easy since you simply slide it into place and lock the pin, securing your hitch without having to fuss over other options. Despite its small size, the hitch pin is surprisingly durable and can only be unlocked using one of the two keys it comes with - thanks to the barbell locking system, it is much harder to force open with tools.
'Simple' doesn't always mean 'bad' when it comes to security, and this trailer hitch lock is perfect for anybody who wants to keep their trailer secure without going for an over-the-top security option that thieves might see as a new target.Check Price on Amazon ➞
6. Master Lock 377KA Trailer Hitch Lock
This chrome trailer hitch lock works in multiple different coupler sizes, offering great security on a range of different vehicles: trailers, RVs, and even other less-common attachments. The advanced locking mechanism and simple design mean that it can resist lockpicking attempts and prying attacks, all while still being easy to unlock using the normal keys. The body is made out of zinc, allowing it to handle corrosion and rust better than other metals, and it comes with two keys to give you an emergency spare, just in case. Not only that but even if it's picked successfully, the thief still needs to understand how to rotate the shackle to get it fully unlocked.
This hitch lock design is ideal for protecting important trailers and RVs, combining a strong design and great theft resistance while still being easy to use, hard to break through, and relatively hidden from view.Check Price on Amazon ➞
7. Connor Trailer Hitch Lock
This simple hitch lock pin uses a versatile design that can support multiple different hitch classes, all of which are secured in the exact same way. The simple "click in" operation means that you can make the receiver lock into place almost instantly, and only need the key again when you are ready to open it. Not only that, but it is incredibly durable, allowing you to tow up to 20,000 GTW without having to remove it first. The internal components are carefully designed to improve its overall strength and weather resistance without massively increasing its weight, meaning that it is easy to carry around when not in use.
As long as your trailer hitch is within the range it'll support, this lock pin is great for keeping them connected together no matter the weather, and can resist theft attempts really well even if you are not using any other security measures alongside it.Check Price on Amazon ➞
8. Tow Ready 63228 Gorilla Guard’ Coupler Lock
The body of this trailer hitch lock includes a special shielded section for preventing tampering, making it harder for thieves to get their tools in the right spot. It is able to fit almost all 2-inch couplers, letting you protect a wide range of trailer and RV types without having to look for separate tools. Not only that, but the tubular lock shape means that it is very difficult to spoof the right kind of key design, and makes it harder to pick without very specific tools and knowledge that most thieves won't have. Not only that, but each one has a slightly different key, so two people with this hitch lock won't be able to open each other's.
This lock is very simple in terms of appearance but offers an excellent level of security that can't be broken past without very specific equipment, making it really difficult for your average thief to do anything.Check Price on Amazon ➞
9. motormic Trailer Hitch Lock
This trailers' locks pin is made using tough, solid hardened steel construction that can withstand all kinds of direct damage. Underneath its durable exterior is a simple-to-use "push to lock" system that can be secured at almost any time, as well as an unlocking system that can only be used with the right key. Thanks to the rubber key slot cap, you can stop water and dirt from getting in and making it useless, and the once-piece body means that you don't need to stress over important pieces falling off or breaking suddenly. Even if the locking system is damaged, you can use the special pin to keep towing until you get it fixed.
This trailer hitch lock may not be the best when it comes to versatility, but it does its job well, offering more durability than most trailer locks while still remaining simple to use and hard to pick.Check Price on Amazon ➞
10. Trimax UMAX100 Universal Trailer Lock
This universal trailer lock is designed for ease of use and great versatility, working with a range of different trailer class types and brand names to give you plenty of options. Unlike many trailer lock products, the Trimax Umax100 uses half-turn technology to prevent you from "false locking" if you don't turn the key all the way and offers 360 degrees of steel protection to ensure that there are as few physical weak spots as possible. Not only that but installing the lock is incredibly simple, making it great for quick and consistent locking while you are on the move.
This lock is big, tough, and much stronger than many other receiver locking products, making it one of the best choices if you value higher security and physical protection above all other features. It is also still quite simple to use, making it a great option for first-time receiver lock users.Check Price on Amazon ➞
Trailer Hitch Lock Buyer’s Guide
Buying a lock for your trailer is like buying a lock for your front door – you need to make sure that everything is correct. Otherwise, you will be putting a lot of your valuables at risk. But it is not as simple as just choosing the first trailer hitch lock you see – different products have their own good and bad features, and choosing one that suits your needs is extremely important if you want to get the best level of security possible.
It might be tempting to go for a bright yellow trailer hitch locks simply because they look like the most protective option, but that isn’t always a good idea. Hidden protection is often the best part of a security system, and many people overlook the way their products will appear to thieves. Let’s say you buy a big, bulky, colorful hitch lock or trailer coupler lock that really stands out – it will tell people that your trailer isn’t easy to steal, but that might also draw in more thieves than it turns away. If you are really unlucky, it might even help them figure out which line of products it belongs to: if they are familiar with receiver lock designs, they might simply be able to get past all of the security features by knowing the weak spots.
If you want the best possible level of security, you want products that look bland or blend in with the rest of the coupling: even one that’s just made with stainless steel can be enough, it doesn’t have to be anything extreme. The harder it becomes for other people to identify your trailer hitch locks, the less likely they are to try and break through them.
Strength matters. A lock that is made with stainless steel and ballistic grade nylon housing will always be stronger than one made with thin aluminum and plastic. There are a few exceptions, but the majority of products can be ranked this way. Keep in mind that you aren’t just up against thieves that will try to pick locks: they might use hand saws, hammer blows, or even powered cutting tools and drills to try and breakthrough, especially if you are in an isolated area where people aren’t likely to hear them. If the best hitch lock products you have crumble under a direct few hammer blows, they won’t protect your possessions for long.
Good durability isn’t hard. You don’t need to go for 16 inches of pure, solid hardened steel with built-in reinforced materials or anything like that: something as simple as good stainless steel construction and one or two other minor security features can be more than enough to protect you from thefts. After all, the longer it takes for a thief to actually break through the products you use, the more time you have to catch them.
Durability isn’t just important to stopping thieves, though. Bad weather can cause rust and natural wear, which can slowly make your receiver locks less effective as they wear down. While the receiver or hitch might be designed to endure this, there is no guarantee that the hitch lock will. Your best option is to find something with a decent amount of corrosion resistance and rust prevention, even if it is just a simple stainless steel product with basic anti-weather features.
The best trailer hitch lock for a particular RV or trailer is the one that actually fits. If your coupler or receiver is too large or small for the trailer hitch locks you choose, they aren’t going to work properly. Keep in mind that even premium universal designs won’t support every size: there are still limits. Certain features try to alleviate this through adjustable parts, but the best options are still any lock that fits as expected.
Remember that some trailer hitch locks are designed purely for a single size: these will only work as a lock for a particular coupling size, and none others. If you have that size, they are the best, but they are almost useless anywhere else. Make sure you do your measurements and understand what size you are dealing with before you make any kind of purchase.
Minor Lock Features
It is easy to get carried away and forget that certain extras can make a huge difference. A lock with an aluminum finish might be a more durable design than other heavy-duty options, while one that acts as a deterrent might be more affordable than one focused on physical quality and strength. Even something as small as a steel trailer lock versus a stainless steel lock can be significant. Check the accessories and extras the company will provide with the lock itself, and make sure you look at the Amazon reviews their customers leave. This can give you some insight into what kind of experience you should expect as a customer and might identify problems that the owners have had with each item in the past.
It is very easy to overlook something small like that. When you’re looking for coupler locks, you might actually want a universal coupler lock, but not everybody remembers that they are an option. Don’t be afraid to do a bit of research first, since it can help you find the best product for your exact needs in much less time.
It is not always acceptable to use a lock while towing, depending on the situation – it can make it harder to detach your trailer if a fire breaks out somewhere or a crash accident occurs. The best time to use a lock is when you are stationary.
Did you know?
If you own a caravan or another large towed object, you should check any insurance policies you have on them. Some might require a certain kind of lock to be used, or even require a lock to be installed in specific situations. Always read up on what’s actually needed.