10 Best Trailer Hitch Locks

Stuart Wellbert
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It is troubling how many vehicles are broken into every year. Many of which, have their valuable contents stolen from them. Even though you might have your vehicle parked in the driveway at home and the garage, it still isn’t that hard of a thing to break into.

If you’re like most people, you probably have some expensive tools, sport equipment and even a nice bicycle in the back of your car.

It makes sense to invest in a lock that will keep these things safe from thieves. That’s why I’ve created this guide to the top 10 best trailer hitch locks.

These locks are made specifically for locking into your trailer hitch, so they have the advantage of not having to worry about also locking to the frame of the vehicle.

Because trailer hitch locks are low-profile, they don’t take up much space in the car, unlike other types of locks. Typically, travel trailer hitch locks are made for the trailer hitch, and not the frame of the vehicle. Many of them also can be locked to both at once though.

Even though these locks are made for trailers, they can be used to lock any type of hitch to a vehicle.

NameCategoryProduct
AMPLock U-BRP2516 RV/Trailer Coupler LockBest OverallAMPLock U-BRP2516 RV/Trailer Coupler 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
Trimax UMAX100 Premium Universal 'Solid Hardened Steel' Trailer LockUpgrade PickTrimax UMAX100 Premium Universal 'Solid Hardened Steel' Trailer Lock

1. AMPLock U-BRP2516 RV/Trailer Coupler Lock

Our rating: 9 / 10

AMPLock U-BRP2516 RV/Trailer Coupler Lock

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Pros:

  • Affordable
  • Extremely Easy to Install

The AMPLock U-BRP2516 RV/Trailer Coupler Lock is one of the most accepted trailer locks on the market today.

This quality product boasts high-security for your trailer and comes at a great value. The high-tensile keyed lock is designed to fit any 2 5/16” couplers.

This product is extremely durable with long-term protection from rusting and damage. The lock adds an extra layer of security, dissuading thieves from damaging your trailer.

2. Master Lock

Our rating: 9 / 10

Master Lock

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Pros:

  • Resistant to rust and corrosion
  • Plated
  • Lock body
  • Metal
  • Secure

Cons:

  • Hard to fit thick couplers
  • Not fitted for 1-1/4"
  • Sometimes has trouble with tight spaces
  • Stronger design could be desired
  • Need to lock to trailer tongue in order to extend lock in order to lock to ball

No matter how hard you try to protect your vehicle, sooner or later it's going to get stolen. That's why it's important to outfit it with the best anti-theft device you can get.

The best ones are universal trailer hitch locks because no one's going to look up your vehicle details to make sure you use the right device. If you're outfitting a trailer, you'll also need to get one to lock the trailer to the towing vehicle since it’s going to be harder to take off than the vehicle itself.

3. REESE Towpower 72783 Universal Coupler Lock

Our rating: 8 / 10

REESE Towpower 72783 Universal Coupler Lock

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Pros:

  • Strong metal chain
  • Super-slim design
  • 3-foot long
  • 5 tumbler lock mechanism
  • Keyless lock with push-button release
  • The keyway is protected by a dust cover.

The idea behind this product could be its best selling point. The hitch lock fits around the ball-and-socket coupler at the back of the trailer, and the lock’s chain connects into the coupler.

This chain has to first be unlocked and then pulled (very hard) out of the lock to win. This makes it very hard to steal.

The slim design is a huge plus for this lock, as it’s barely noticeable when it’s in place. The chain is 3 feet long, which is long enough for you to lock up your trailer and still be able to access the key to the lock.

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

Our rating: 8 / 10

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

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Pros:

  • Affordable
  • Easy to install
  • Covered by a limited lifetime warranty
  • Easily swivels and locks through both 1/2 and 5/8 hitch receivers
  • Includes 1/2 and 5/8 hitch locks

The Master Lock 2866DAT is an incredible best trailer hitch lock for a very affordable price. It’ll serve you for years to come.

This hitch lock has an easy to install design. It’s only 15.2 inches long. You can use it with 1/2 or 5/8 inch hitch receivers.

The Master Lock 2866DAT is clearly a bargain, but it’s not the best trailer hitch lock you can get. This is because it’s not very sturdy.

5. Master Lock 377KA Trailer Hitch Lock

Our rating: 8 / 10

Master Lock 377KA Trailer Hitch Lock

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Pros:

  • Quite easy to install
  • Durable
  • Simple to use

Plated Steel, 17 in. Long Arm and 5/16 in. Hitch Pin – 2 Pack

The idea of having a trailer hitch lock may seem unnecessary if you’re one of those people who believe that everything you own is already properly secured, but if you’re not careful, criminals can be very innovative in trying to steal the things you’re trying to protect.

This bike hitch lock has the lock at the end of a long arm and you can simply put the hitch pin through the hitch opening. If someone tries to pull it out, they’ll just end up dragging your bike.

6. Cocoweb HL-58BK

Our rating: 8 / 10

Cocoweb HL-58BK

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Pros:

  • Heavy duty design
  • 5/8" Receiver
  • Premium quality stainless steel
  • Lifetime warranty
  • Weather resistant
  • Fits 5/8" to 7/8" trailer hitch receivers

If you have a 5/8" trailer hitch and are looking for a lock, the Cocoweb Heavy Duty Locking Pin is the most recommended and trusted product out there.

What separates this lock from the rest is the special 90 degree design of its head. That means it will allow you to put it in the hitch without having to remove the hitch. It also helps to lock it in place.

The lock comes in a basic black color, weighs 2.01 pounds which could be a turning point for most people considering buying a hitch lock.

7. Tow Ready

Our rating: 8 / 10

Tow Ready

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Pros:

  • Affordable
  • Solid lock
  • Prevents thieves from stealing your trailer hitch
  • Quick and easy to use

Cons:

  • The lock lops may be too short for some couplers
  • It looks a bit bulky

If you want a hitch lock to temporarily secure your hitch and ensure it doesn't fall off when you drive or tow a heavy object, this is a good option. This lock is made from solid steel and includes two lops to fit most hitches.

The wheel has a solid steel core and is made from hardened steel to prevent aerial theft. The wheel can be locked using a padlock and comes with a free locking pin.

It weighs just 27 pounds and is very easy to install. This hitch lock will fit couplers with a 2" hitch diameter.

8. 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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Pros:

  • Most thick shackle and resistant to cutting and brute force attack
  • Strong locking mechanism
  • Triple bolt locking system for optimal protection
  • Anti-drill and Anti-Tamper device

Cons:

  • Long shipping options
  • Very Heavy

This heavy-duty lock isn’t our top pick for nothing. Fitting a 7/8 inch receiver, this lock is sure to keep your truck and trailer safe and well protected. The shackle has five double locking points, providing an enormous amount of resistance against brute force attack.

The UMAX100 also has a unique patented anti-drill device and an anti-tamper device. To make sure that it stays in place once it’s locked, the shackle has two knuckles; if you cross them, you’ll get a secure fit. Another great feature is the double bolt locking system, which increases the amount of resistance, giving you the option to lock the shackle or the hitch.

We recommend it to anybody who lives in a high-crime neighborhood or caravan with valuable cargo. Its impressive size, weight and thickness will surely give would-be thieves second thoughts.

9. motormic Trailer Hitch Lock

Our rating: 8 / 10

motormic Trailer Hitch Lock

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Pros:

  • Solid construction
  • Fits a variety of receiver sizes
  • Works as a complete anti-rattle system
  • Comes with 2 keys
  • Designed to withstand corrosion from moisture and salt

10. Connor Trailer Hitch Lock

Our rating: 6 / 10

Connor Trailer Hitch Lock

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Pros:

  • Non-scratch surface
  • Easy to use
  • Easy to set up
  • Works well with most trailer hitch receivers

Cons:

  • Not thick enough to deter thieves that are willing to break the lock
  • The lock can be picked with a pocket knife
  • Not very heavy duty

If you’re looking for the best trailer hitch locks for your utility trailer, then you may want to consider the Connor Trailer Hitch Lock.

This will work on most trailer hitches and receiver locks. To add to this, it comes with a user guide. There are two versions, the standard and the Black Nickel.

To install the latter, you will need to remove the lock from the standard version first. However, both versions are essentially the same.

Frequently Asked Questions (FAQ)

What is the best trailer hitch lock?

Combination locks are typically the most secure and easy to configure, and they come in a variety of different configurations. For example, you can choose from a lock that works with a hitch receiver and ball, or one that can accommodate a cargo carrier and legs.

Standard locks that work on a hitch and the lock arm typically take some degree of leg muscle to operate. Some are easier than others, but generally, you may find yourself a little out of breath once you start swinging one around.

Finally, the umbrella-style locks out there arenʼt as secure as the others. They may work just fine for your occasional times use. But if you carry expensive items in your cargo carrier or trailer balls, these locks are not ideal for securing your belongings. If someone wants to steal your stuff, this is one of the easiest styles to break.

How do I lock my trailer hitch?

The hitch lock is an object you should consider for added security. Storing a trailer is always a vulnerable situation, especially in urban areas or places where theft is more common. Even if you don't plan to be away from your trailer for long, it's a good idea to secure it with just a lock.

Before buying a new bicycle, most people consider what accessories they'll need for it. It’s very common to use a bike helmet, a bike pump, a bicycle lock, a bike rack, and even an indoor bike storage solution. But did you ever think about what you would do in a situation when you'd want to use your bike but you left it, along with the helmet, pump, lock, and so on, at another location? The hitch lock is the solution. It comes in a variety of shapes and sizes, whether you want to lock your trailer hitch or trunk.

What is the best way to lock a trailer?

First up, it's important to know that you're not required by law to lock your trailer in any way.

However, if you're worried about security or curious as to the prevalence of theft from a trailer, read on. If not and you just want to know what's the best lock for a trailer, then skip down to our top pick.

Nonetheless, it's interesting to see that of 104 cyclists who have been interviewed, owned a trailer, and/or used a trailer, over half didn't lock their trailer at all. Of the half that did lock their trailer, some used a little-known theft deterrent, the Trimax 9500 Brake Lock.

How does it work? Pulling the brake lever at the top of the steering column releases the lock on the hitch ball. Once the lock is released, the trailer can't be detached from the tow vehicle.

What is the best boat trailer lock?

When protecting a boat, you have a few different ways to go about it. Boat thieves are more likely to target an empty boat trailer than a full one. The most effective deterrent is to make your boat look like it isn't worth stealing.

We suggest purchasing a few inexpensive, attractive pool noodles and cutting them up to place at the end of your trailer.

The next best alternative is to install a trailer hitch lock so no one can tow your boat.

Conclusion

It can be a daunting task to choose the best hitch lock, even more so if you have never done it before. There’s no way of knowing exactly what’s the best hitch lock for your needs without doing the proper research, and hopefully the guide below will help you do just that.

Our Recommendation

NameCategoryProduct
AMPLock U-BRP2516 RV/Trailer Coupler LockBest OverallAMPLock U-BRP2516 RV/Trailer Coupler 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
Trimax UMAX100 Premium Universal 'Solid Hardened Steel' Trailer LockUpgrade PickTrimax UMAX100 Premium Universal 'Solid Hardened Steel' Trailer Lock