Top 5 Best Trailer Hitch Locks: Proven Industries, Master Lock, Connor, Reese or Trimax (2021 Reviews)

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Best Trailer Hitch Locks: Proven Industries, Master Lock, Connor, Reese or Trimax

What to do with your trailer when you are not using it? At home or elsewhere, the trailer can be prone to theft. To protect yourself against thieves, equip yourself with a suitable trailer lock. In this article, we give advice and suggestions for the best trailer hitch locks at a good price.

Top 5 Best Trailer & Caravan Hitch Locks 2021 Reviews

#1 Best Connor Trailer Hitch Lock: Connor 1615190 Trailer Hitch Lock

Connor Trailer Hitch Lock -...
  • EASE OF MIND Tow up to 20,000 GTW...

Connor 1615190 Trailer Hitch Lock is arguably the most practical and competitive on the market. Supplied with two keys, its assembly is quick and easy. It also has anti-corrosion protection. The big plus of this model is that it adapts to all hitch setups.

Just attach it to the vehicle and enjoy the journey. To prevent any malicious act, they also supply a padlock cover to prevent sawing.


  • The lock is easy to install and remove with slight effort
  • It fits with almost all hitch setups
  • The product is double durable with heavy-duty steel
  • Comes with advanced technology to ensure safety


  • When it is locked, the user cannot remove it except by cutting it off.

Connor 1615190 Trailer Hitch Lock comes with push-to-lock technology to ensure the best safety for the users. The product is easy to install and weather resistant.

#2 Best Proven Industries Trailer Hitch Lock: Proven Industries 2178 Lock

Proven Industries Lock Model...
  • CHECK PHOTO INDEX for coupler...
  • Ultimate protection against theft...
  • 1/4" All Steel Construction -...

Proven Industries 2178 Lock is a real nugget for anyone who wants to ensure the safety of their trailer. Its padlock offers top security. We can attach it to the bolt cutter proof of the towing vehicle and require no difficulty in installation. Whether alone or fixed, the coupling head will always be protected and will dissuade anyone from wanting to take it off you.


  • The manufacturer offers many options for colors
  • Gives the best protection from theft with bolt cutter proof material
  • Steel cover with coat finish for high durability


  • Hard to remove

Besides the 2178 model, Proven Industries also provides many choices of lock to be compatible with different couplers. This model is solid and offers ultimate protection against any damage and theft.

#3 Best Master-lock Trailer Hitch Lock: Master Lock 389DAT Trailer Lock

Master Lock - Universal Size...
  • Universal coupler lock fits...
  • This lock protects unattended...
  • Resists rust and corrosion. Simple...

This anti-theft device from Master Lock offers proper security to your trailer or caravan. Its padlock system gives it total protection. It also has a lock indicator. The lock is also very robust since it can reach 3000 kilos of towed load and a support load of 120 kilos. This anti-theft device will be an essential accessory for those who are most concerned about security.


  • Fits with many types of trailer couplers
  • Bright color that resists fading and corrosions
  • Easy to install and remove


  • Sometimes, it gives false security

Master Lock 389DAT Trailer Lock is one of the best trailer hitch couplers locks with advanced functions and dynamic design.

#4 Best Reese Trailer Hitch Lock: Reese 72783 Universal Coupler Lock

REESE Towpower 72783 Universal...
  • DIMENSIONS: 9” x 9” x 3”
  • BUILT TO LAST: The REESE Towpower...
  • UNIVERSAL FIT: Ratchet design is...

Simple and efficient, it is how in two words we could summarize the anti-theft system. But it’s hitch universal, Reese 72783 Universal Coupler Lock allows you to secure both your trailer and your caravan. It also offers a strong padlock against sawing. In seconds, you can remove and undo this lock. This feature makes the lock easily transportable and particularly practical.


  • Premium construction for a long-lasting lifespan
  • Ratchet design to fit with multiple couplers
  • High visibility with vibrant color


  • Low security

Reese 72783 Universal Coupler Lock is a brilliant choice to guard the truck or trailer tow away. The product has a unique design with vibrant color.

#5 Best Trimax Trailer Hitch Lock: Trimax UMAX100 Trailer Lock

Trimax UMAX100 Premium...
  • Crafted from the highest quality...
  • Perfect for outdoor and even indoor...
  • Made in China

Trimax UMAX100 Trailer Lock adapts to any trailer. Its nickel-plated zinc body gives it significant resistance and flawless robustness. The lock has optimal resistance to bad weather. It is also very convenient and easy to install or remove. You can carry it anywhere. Supplied with two keys, it will provide unparalleled protection for your trailer.


  • Premium materials for weather and dust resistance
  • Easy to use and install
  • A perfect product for indoor and outdoor vehicles


  • Loose fit

Trimax UMAX100 Trailer Lock is made from the best materials. The product is perfect for both indoors and outdoors.

Why You Should Have Trailer Hitch Locks

The lock is an essential accessory for any trailer owner. Especially, it depends on the weight of your trailer. In fact, in most insurance contracts, a trailer of less than 750kg is covered by the guarantee of the towing vehicle. And a specific contract must cover a trailer of 750kg and more. Whether we store it on a highway rest area for a break or in your garden, the trailer can always be subject to theft. So, when you have put one of your precious couplings there and protect yourself from malicious acts, you need a suitable and high-quality anti-theft device. You will find many types of locks on the market. They can adapt to a different vehicle, like cars.

A trailer hitch lock can protect a trailer. The rich variety of locks can provide optimal security. There are different models of trailer locks, such as towing headlocks. It has the convenience of being able to be installed and kept while driving.

There is also the wheel guard trailer lock. It is useful for long-term parking. The padlock trailer lock also exists. It is the least expensive system on the market and allows you to attach your trailer to a fixed point, as you would with a bicycle. This diversity requires choosing in accordance with your habits, but also according to your security requirements.

Trailer Hitch Lock Types

1. Receiver Style Hitch Locks

Receiver Style Hitch Locks offers great protection against theft and the outer environment. It locks the trailer hitch and receives at the same time. The lock uses a key system to operate.

2. Coupler Hitch Locks

Different from the receiver style, the Coupler Hitch Lock locks everything that the user toes into the hitch. We cannot separate it without the key.

Factors to Consider When Choosing a Trailer Hitch Lock

1. Hitch Class/Coupler Size

The basic hitch receiver size is 2 x 2 inches for both Class III and IV. Most hitch locks are used for pickup trucks and SUVs.

2. Material – Steel, Aluminum & Rubber

Pay attention to the premium materials. They make most hitch locks from steel as they are solid and theft prevention. The steel material can withstand any cutting force and severe conditions for a long time.

3. Lock Design

For greater protection, many manufacturers equip high-quality locking mechanisms on their products. The level of protection depends on the separated components. Some hitch locks also feature a protection cover for the key holder, external padlocks, and disc locks.

4. The Lock’s Longevity

Everybody wants to invest in a product that can last for years. And trailer hitch locks are no exception. The longevity of the locks depends on their solid materials. Nobody wants their locks to be easy to break. So, always pay attention to the material proportions first, as mentioned above.

5. Ease of Use

The highly applicable locks will save your tons of installing time. Especially, most customers want a lock that can be hitched or unhitched as fast as possible. Some special locks come with complicated systems, but the manufacturers provide a clear manual book.

6. Price

The wheel guard trailer lock immobilizes a wheel to prevent the trailer from moving. To be chosen according to the size of its tires, we can also use the wheel guard trailer lock on a caravan or any other wheel. Its major drawback is the bulk it creates when not in use. It is suitable for protecting a trailer in its prolonged parking place. The price of the wheel guard trailer lock oscillates between $40 and $150.

Top 5 Trailer Lock Brands

1. Proven Locks

Proven Locks is one of the most famous lock brands in the United States. The trailer locks from Proven Locks are premium with solid materials. The production stages are strictly examined from the ground up to the finishing.

2. Master Lock

Master Lock is the world’s number 1 lock manufacturer established in 1921 in the US. They make the Master Lock series of anti-rust material. Customers choosing Master lock are to choose an optimal solution with high-quality products.

3. Trimax

Trimax is famous for stainless steel locks all over the world. The products of Trimax have premium quality at reasonable prices. They always apply the most advanced security technology for their products. So, the trailer locks from Trimax can offer the highest safety level for the customers.

4. Connor

With criteria as the supplier of the safest door lock for your home, the lock from Connor can withstand a pull force of up to 2.5 tons. So you can be completely assured when choosing products of the famous brand of Connor without worrying about safety, nor worrying about losing the aesthetics of your house.

5. Reese

With the successes in interior accessories, high-end building accessories, and advanced electronic locking systems, Reese always plays an important role for every consumer. We can use lock and identification systems in almost every field, from housing and hotels for large companies and corporations.


1. What is the best trailer hitch lock?

The trailer lock is a necessity to protect your trailer against theft. There are many types of trailer locks available on the market, each with specific characteristics. Choosing an effective anti-theft device for your trailer is simple. However, there are a few very important criteria you should consider. In this article, discover the essential information to know and the most efficient trailer locks available on the market.

2. What is the best anti-theft lock for travel trailers?

The trailer lock is a device that securely holds the hitch and the receiver and thus protects the trailer and these accessories against theft. It is also called a coupler lock. The lock prevents any lifting of the receiver. A malicious individual cannot unhitch the trailer without deactivating the lock.

The lock is very useful when the trailer is detached from the vehicle. Besides, the coupling headlock has a powerful deterrent effect. The mere sight of the device will make the thief change his mind. So, he is interested in a trailer that is easier to steal.

There are several types of trailer locks including universal lock, parking lock, and coupling headlock. There is also the towing trailer anti-theft device available in models guaranteeing optimal security. A tow ball lock can also protect the trailer. Finally, several other equally effective devices attach to the wheels.

The trailer lock fits over the tongue coupler of the trailer and acts as an insurance policy. You can do its installation in a few minutes. We can attach the trailer lock to the drawbar using bolts. It usually has a padlock that is used to open the cap of the block. Then place some models on the coupling ball.

We place them at the level of the kneecap for better security. Others have nuts that can be placed on one or both wheels at a time. It is also possible to place the anti-theft device on the wheel support.

3. Can you lock a trailer hitch?

We recommend attaching the safety cable holder to a non-removable part of the towbar or directly to the car. In this way, you will be sure of having a safety device in line with all the best practices.

4. How do I protect my trailer from being stolen?

Without wanting to impose anything, the solution that we quickly favored adapts to any situation and trailer. A simple anti-theft cable equipped with a good padlock allows you to secure your axle to any post barrier on your car.

We find them everywhere, especially in automotive equipment stores. For a very reasonable budget, their length of three to five meters meets all requirements.

Final Words

Among the five best trailer hitch locks, Connor 1615190 Trailer Hitch Lock wins our hearts thanks to its excellent protection, solid construction, reasonable price, and long-lasting lifespan. In case you want a popping lock, Proven Industries 2178 Lock stands out with its vibrant color and modern design.

Bonus: Proven Industries Model 2178 Hitch Lock Installation

Trailer Hitch Lock Bestsellers on Amazon

ON SALEBestseller No. 1
CURT 23518 Black Trailer Hitch...
  • DEPENDABLE SECURITY. To protect...
  • EASY TO OPERATE. The barbell-style...
  • VERSATILE. With a 5/8-inch diameter...
ON SALEBestseller No. 2
Master Lock - Universal Size...
  • Universal coupler lock fits...
  • This lock protects unattended...
  • Resists rust and corrosion. Simple...
ON SALEBestseller No. 3
REESE Towpower 72783 Universal...
  • DIMENSIONS: 9” x 9” x 3”
  • BUILT TO LAST: The REESE Towpower...
  • UNIVERSAL FIT: Ratchet design is...

Affiliated links and Images on this post was last updated on 2021-04-21 via Amazon Product Advertising API.