The 10 Best Trailer Locks of 2022

Jerry Wilson
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If you have anything of value to haul to the dump or a furniture delivery you need to protect, or if you are a road-tripper who needs to protect your valuable possessions, a portable trailer lock is a must-have for you.

A good trailer lock is great insurance against the occasional flat tire or broken down vehicle stopping you from ever reaching your destination.

Whether it’s a bike trailer lock, car tow hitch dolly lock, trailer wheel lock, or even a boat trailer lock, protecting your assets has never been easier.

Master LockBest OverallMaster Lock
Master Lock 2866DAT 1/2 in. and 5/8 in. Swivel Head Receiver LockBudget PickMaster Lock 2866DAT 1/2 in. and 5/8 in. Swivel Head Receiver Lock
AMPLock U-BRP2516 RV/Trailer Coupler LockUpgrade PickAMPLock U-BRP2516 RV/Trailer Coupler Lock

1. Master Lock

Our rating: 9 / 10

Master Lock

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  • Sturdy and well made
  • Large lock with sturdy grip and key
  • Good value for money


  • Hard to fit some tow bars
  • Hard to use on stinger hitches

The Universal lock from Master Lock is a great option for most cars/trucks and trailers. This black universal lock comes with a sturdy plastic case to store your tow lock key with a metal sleeve attached to it.

This trailer lock measures 3.6 inches and should fit most hitch balls and couplers. It has a threaded shank made from steel so it can be screwed or bolted on to hold your desired place.

The shackle is a hefty 1.6 inches in diameter and comes with a large 0.5 inch diameter keyway. This Universal lock is so sturdy that it is probably overkill for most trailers.

2. AMPLock U-BRP2516 RV/Trailer Coupler Lock

Our rating: 9 / 10

AMPLock U-BRP2516 RV/Trailer Coupler Lock

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  • Easy to Set Up
  • Quick, Simple, and Easy To Use
  • Large and Heavy Enough To Be Effective
  • Fits Coupler Sizes between 2 5/16 to 2 5/8 inches

Featuring a solid lock mechanism that beats the average key lock design, AMPLock's U-BRP2516 is an the best trailer lock for a range of trailers up to 16 feet in length.

On top of that, it's also one of the most convenient trailer locks you can purchase. The innovative design features an integrated key chamber that can be accessed by inserting the included key into the lock.

The lock comes ready to be used within a few minutes, as you simply connect it to your existing security chain before locking it into place.

3. Master Lock 379ATPY Universal Trailer Hitch Lock

Our rating: 9 / 10

Master Lock 379ATPY Universal Trailer Hitch Lock

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  • This hitch lock has a special noose design that expands in all directions, ensuring that no force can escape its hold.
  • The design includes two retractable locking arms, with a locking mechanism that remains tightly shut, with increased holding power.
  • They’re made of zinc-plated steel to protect them, and provide a further resistance to forcing or cutting.
  • They’re ideal for use in conjunction with cycle carriers, hitch boxes, storage boxes and other hitch accessories.
  • This is a universal product, and as such, there are a couple of complaints.
  • Some users have found that the lock is a problem when attached to the tow hitch.
  • Despite its universal claim, it doesn’t work on all bike racks.
  • Some users have complained about the cost.

The Kryptonite Keeper is a solid tumbler lock made from hardened boron alloy steel.

The shackle has a single crossbar, with its innovative double deadbolt locking system.

The transport mount allows the shackle to pivot forward, around, and behind bike frames.

4. Master Lock 2866DAT 1/2 in. and 5/8 in. Swivel Head Receiver Lock

Our rating: 9 / 10

Master Lock 2866DAT 1/2 in. and 5/8 in. Swivel Head Receiver Lock

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  • Highly Secure Locking
  • 5 And 1/2 Foot Cable
  • Ruggedly Built

The Master Lock Receiver locks down your trailer at a variety of heights to give you the extra level of security you need to keep your belongings safe. Go ahead and play with your bikes and experiment with different locking positions to find what works best for you.

The locking system is very easy to use, so you’re not going to spend a lot of time struggling with it. The mechanism itself is designed to snap into place. However, you may need to adjust it every now and then to get the best fit for your trailer.

As well as working great with your car, pickup truck, or trailer, you can also use the Master Lock receiver lock on other things, such as an in-ground swimming pool. Just make sure you snap the lock into place just as you would with your trailer, making sure that it’s locked to both the deck and the surrounding fence so that it can’t be removed. It’s also worth pointing out that the Master Lock has a built-in dust cap that will help to prevent any serious damage to the both the lock and the trailer.

5. Master Lock 377KA Trailer Hitch Lock

Our rating: 8 / 10

Master Lock 377KA Trailer Hitch Lock

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  • Simple, affordable, and reliable
  • Easy in and out set up
  • Great for quick stops
  • Low weight

The Master Lock Trailer Hitch Lock is the perfect pick for your bike racks or long trailers. So, no worries about leaving your bike behind while you seek for your ice cream.

This basic hitch lock from Master Lock is super simple and incredibly easy to use, making it a great pick for anyone who doesn’t need the more expensive chains, or for people who are cycling in warm conditions when chain riding is not practical.

This is the lowest priced hitch lock we found for bike trailers, and it does the job well. However, be aware that this product is made for 2-inch and most 2- 5/16-inch trailer couplings.

6. Trimax UMAX100 Premium Universal 'Solid Hardened Steel' Trailer Lock

Our rating: 8 / 10

Trimax UMAX100 Premium Universal 'Solid Hardened Steel' Trailer Lock

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  • Solid hardened steel
  • Easy to fit to different hitch styles
  • Lock holds up in all weather conditions
  • Sturdy construction
  • Reliable locking mechanism

The Trimax UMAX100 hitch lock will fit all couplers and comes with the unlock tool stored inside the lock. It works with all major crossbars. It has a 4-digit T4 anti-theft mechanical key system. It is not made of glass-filled nylon, and instead, it is hardened steel, so it is quite heavy. However, it is sturdier and tougher thus making it a great choice for trailers.

The lock has quite an impressive set of features. It has an arrow and a symbol that indicates the correct direction to insert the crossbar. The lock has a sturdy external construction of hardened steel and features a sturdy rack that can be used to hang any accessories. Further, the Steel UMAX100 is highly water resistant and is corrosion resistant.

7. REESE Towpower 72783 Universal Coupler Lock

Our rating: 8 / 10

REESE Towpower 72783 Universal Coupler Lock

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  • Heavy duty steel construction
  • Easy to use and install
  • Rubber gasket to protect against corrosion
  • Two keys included

This is one of the most popular trailer locks from REESE. Made with heavy duty steel, it comes with a rubber gasket that protects it against corrosion and can withstand rough use.

It´s easy to use and install and comes with two different keys. It can be used to secure many different types of couplers.

8. Tow Ready

Our rating: 8 / 10

Tow Ready

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  • Sturdy and Resilient
  • Affordable

Trailer theft is a problem rife with inadequate protection. Fortunately, there are plenty of highly-rated locks that make protecting your trailer easy and affordable. This particular lock by Tow Ready offers both features, making it a fantastic choice for securing your trailer. This lock comes with a greater degree of protection than most locks, as it features a thicker wire mesh.

Using the "Gorilla Guard" lock is easy and very straightforward. Simply crank the lock over the coupler with the latch. The lock will feature one of the two types of tips included in the package, depending on the size of your coupler. This lock can even work with standard 1-1/4" couplers. To unlock the lock, use the key.

9. CURT 23518 Black Trailer Hitch Lock

Our rating: 8 / 10

CURT 23518 Black Trailer Hitch Lock

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  • Affordable
  • Simple to Use
  • Easily Hidden

We looked at the most popular trailer hitch locks and ultimately determined that the CURT 23518 Black Trailer Hitch Lock, 5/8-Inch Pin Diameter, Fits 2-Inch Receiver is the best in class. This lock is affordable, simple to use, and can easily be hidden when not in use.

This lock is a round design which will fit through the standard hitch pin hole. It comes with a separate key for your hitch pin. You can then turn this lock so the pin stays in place thereby securing your bike.

When used in conjunction with a locking bicycle pin or hitch pin, the CURT trailer hitch lock allows you to secure any type of bike to your trailer hitch.

10. Cocoweb

Our rating: 8 / 10


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  • Pin is designed with a 2-inch shackle
  • 6-Inch locking lever, which connects to the shackle
  • Great protection against thieves
  • Simple and affordable


  • Cannot be used for a variety of trailers
  • Lock may not be the most secure for some

The Cocoweb C-Lock Heavy Duty locking hitch is a heavy-duty locking pin with a 1/2-inch shackle and includes a six-inch locking lever that can be used with a variety of trailers.

This lock is made from bright zinc to give it added protection from rusting when exposed to moisture. The lock also includes a protective cap, which is designed to protect the lock’s locking mechanism from damage. The entire lock weighs only 1.5 pounds.

The lock measures 18 inches by 7.67 inches and is 2 inches thick. It is designed to be easy to use and is also quite affordable.

Frequently Asked Questions (FAQ)

What are the best trailer locks?

There are all sorts of hitch locks, but we’ll focus on the best key locks for cars, trucks and campers.

Who makes the best trailer hitch lock?

Members of the Trailer Hitch Lock Business Owners Guild claim that they are the best as they work even when the lock was not locked up, in the event of an accident.

This is ideal as you don’t have to remember to lock your hitch lock before you leave. It will remain locked automatically. When it comes to the best trailer hitch lock, it comes down to which lock companies have the most efficient security.

There are many trailer hitch locks available in the market at the moment. We have listed the best trailer hitch locks which are highly rated by the trailer hitch lock reviews made by the users.

How do you remove a trailer lock without the key?

If you lost or broke the key to your lock, don't stress. You can still remove the lock without the key and it will take you a few minutes on Amazon to purchase a new one. We simple consulted an auto repair shop and received these instructions:

You’ll need to have continuity. In other words, you need a wire that can close two points of the lock. You can use the small wire that comes with a single AA battery, and scratch your way to the metal of the lock or screw it into the trailer hitch; latter is recommended. Cut a piece of wire at least a foot long, strip the ends of the wire then touch them to the lock where you scratched and you should hear a click and the lock will open. You may need to do this two or three times, but eventually it should work.

How do you pick a lock on a trailer?

Finding the right trailer lock may seem like a daunting task at first. There are tons of different types of locks and each one will seem as “the best” for your situation. However, there are a few basics that you should keep in mind when making your purchase.

When you’re looking at locks, it’s important to consider a few factors. First, the reputation of the manufacturer is a huge determiner of quality as well as price. You also need to think about the types of trailers that you’ll be using it on and how secure you think they need to be. You should also consider how easy the lock will be to use; you won’t want it to be such a hassle that you won’t use it.


If you live in a trailer and want to keep your valuables safe, you will need a good trailer lock. There are so many options available to you, though, that finding just the right option for your setup can seem a bit intimidating, even before you start looking at the all the options. It can be hard to know what kind of trailer lock is right for you. We hope this article has given you some ideas of what to look for, how to start shopping, and helped narrow your search for your perfect trailer lock.

Our Recommendation

Master LockBest OverallMaster Lock
Master Lock 2866DAT 1/2 in. and 5/8 in. Swivel Head Receiver LockBudget PickMaster Lock 2866DAT 1/2 in. and 5/8 in. Swivel Head Receiver Lock
AMPLock U-BRP2516 RV/Trailer Coupler LockUpgrade PickAMPLock U-BRP2516 RV/Trailer Coupler Lock