Best Trailer Hitch Locks in 2019: Trailer Coupler Lock Reviews and Ultimate Guide

by Matthew Wilson

Are you using a trailer hitch lock? If not, you have left your trailer open for theft to anyone who comes along and wants to hitch your trailer to their vehicle.

With the use of a lock, you are able to keep the trailer hitch and the receiver locked. This will prevent the receiver from being lifted. A key is often needed to unlock the device.

While you definitely want to have a trailer hitch lock to protect your valuables, finding the right one for your trailer is important.

Having a mediocre hitch lock will leave your valuables vulnerable to theft. So when we compiled our trailer hitch lock reviews, we looked at a number of factors to determine what set these locks apart from all others.

We looked at the vehicle compatibility, prices, durability, safety, and reputation among customers to provide you with a list of the best trailer hitch lock choices.

Best Trailer Hitch Lock Reviews

Connor 1615320 Black 1/2″ and 5/8″ Nickel Swivel Head Receiver Lock for Class I-VConnor 1615320 Black 1/2" and 5/8" Nickel Swivel Head Receiver Lock for Class I-V (New)

 

  • Most motorcycles, both on and off street.
  • ATVs
  • Marine Personal Crafts
  • Utility Vehicles
  • Snowmobiles
  • Most common receivers, including Class I, II, III, IV, V as long as they are 1-1/4, 2, or 2-1/2 inches.

If you’re looking for the best trailer hitch pin lock, the Connor 1615320 Black 1/2″ and 5/8″ Nickel Swivel Head Receiver Lock for Class I-V consistently comes out ahead of the others.

One of the factors that customers love about this design is the durability of the lock. This lock comes with less movable parts to provide greater reliability.

It also features an all-weather rubber cap in order to protect against the type of build-up that comes with extreme weather conditions. Connor 1615320 Black 1/2" and 5/8" Nickel Swivel Head Receiver Lock for Class I-V (New)

Another factor that customers love about this particular lock is the “push to lock” feature.

This allows you to simply lock your device without needing to use a key. This increases your ability to remain safe while out on the road.

The price of this lock is another feature that customers love about this product.

Master Lock – Universal Size Fits 1-7/8″, 2″, and 2-5/16″ CouplersMaster Lock - Universal Size Fits 1-7/8", 2", and 2-5/16" Couplers - Trailer Locks #389DAT

Compatibility

When compiling trailer hitch reviews, it was vital to look at a selection of master locks. These types of locks promise to be a universal fit for many types of trailers. Many people flock to these types of locks for that reason alone.

Features

This lock enjoys a reputation among customers for being durable. It is resistant to both rust and corrosion.

One of the most loved features for customers who prefer this master lock is the bright red design. The red finish provides a very clear signal that no thief should attempt to mess with your trailer because it will be well protected.

Customers also enjoy the advanced security features that this master lock has as part of its design.

While most locks are designed to enhance security, this one goes beyond what other locks provide by offering advanced locking mechanisms.

These mechanisms prevent thieves from picking or prying open the locks.

If you are using multiple locks, you will need to have multiple keys. The keys cannot be used interchangeably from one lock to another.

While this protects you from theft, it may increase your need to fumble with the keys and may make you feel less safe.

Motormic Trailer Hitch Lock Pin Set 5/8″ and 1/2″motormic Trailer Hitch Lock Pin Set - 5/8" and 1/2" Extra Long Black Pins with One Locking System - 1 Safety Clip, 10 Anti Rattle O-Rings - Tow receivers 1.25", 2" and 2.5 inch (Class I,II,III,IV,V)

 

  • Toyota Tundra
  • Ford F-150, F-250, F-350
  • GMC/Chevy/Dodge Trucks
  • Bike racks

Compatibility

When looking for the best trailer hitch receiver lock, customers with large passenger trucks may have difficulty finding a hitch pin lock set made for their truck.

If you are using your pick-up truck to haul and want a hitch lock pin set to keep your haul secure, this set has many of the right benefits for you.

Features

A unique feature of this lock pin set is the rubber cap. This cap protects against any excess dirt getting into the mechanism which can wear the lockout over time. This increases the reliability and durability of the product.

Another key feature of the Motormic trailer hitch is the combination of the push to lock and 1/4 key turn mechanism. The combination of these two factors reduces the amount of time you will spend twisting keys in order to lock and unlock the device. motormic Trailer Hitch Lock Pin Set - 5/8" and 1/2" Extra Long Black Pins with One Locking System - 1 Safety Clip, 10 Anti Rattle O-Rings - Tow receivers 1.25", 2" and 2.5 inch (Class I,II,III,IV,V)

Customers report this as a primary benefit to increase their sense of safety while traveling with their trailers.

Another selling point for customers is the affordability of the product.

Trimax UMAX100 Premium Universal Trailer LockTrimax UMAX100 Hardware

Compatibility

This heavy duty hitch lock receives a lot of customer appreciation because of its versatility. This hitch lock fits most coupler types.

Features

As you might suspect from a lock made of steel, the primary attraction for this device is its sheer durability that outshines many other locks.

The lock offers a unique design that offers a dual ratchet lock mechanism and 360 degrees of steel protection.

To further increase the durability of the product, a keyhole cover is included. This feature blocks out dirt in order to increase the life expectancy of the product.

This is a lock that thieves will see from far away. Trimax UMAX100 Hardware

While some locks cannot be seen until the would-be thief is right upon them, this one projects its security from several feet away.

When using this lock, customers reported feeling certain that thieves were not going to try to break such a large, steel lock.

The increased durability, size, and safety of this lock make it a more expensive product than many other locks.

Customers report that the price is worth the peace of mind that the product provides.

REESE Towpower 72783 Universal Coupler LockREESE Towpower 72783 Universal Coupler Lock, Adjustable Storage Security, Heavy-Duty Steel, Yellow and Chrome

 

  • Bright yellow colors that are easy to spot for any thief
  • Sturdy size of 9 x 9 x 3 inches that makes the lock easy to spot and hard to steel
  • Locks that are simple to install
  • A design that makes locks hard to pick, pry or drill

Compatibility

You are able to use this trailer hitch security lock for 11 different locking positions. It boasts a nearly universal fit, including
1-7/8, 2, and 2-5/16 inch couplers.

Features

Customers reported being extremely happy with the long-term durability of this lock. The combination of an aluminum body and a steel lock bar make this a hefty product resistant to wear and tear. REESE Towpower 72783 Universal Coupler Lock, Adjustable Storage Security, Heavy-Duty Steel, Yellow and Chrome

Other heavy duty locks in the same category as this one tend to be more expensive.

Connor Trailer Hitch Lock – 5/8″ Black Nickel Hitch Pin for Class III IV  V HitchesConnor Trailer Hitch Lock - 5/8" Black Nickel Hitch Pin for Class III, IV, V Hitches, 1615190 Receiver Lock

Compatibility

If you are looking for the best trailer hitch lock to fit most types of hitch setups, this lock may fit your requirements. It will fit Class III and IV 2 x 2 inch receivers.

It will also fit all Class V receivers that are 2-1/2 x 2-1/2 inches. You’ll be allowed to tow up to 20,000 GTW with this lock. Connor Trailer Hitch Lock - 5/8" Black Nickel Hitch Pin for Class III, IV, V Hitches, 1615190 Receiver Lock

 

Features

When customers report their happiness with this product, it is often due to the dependability that this lock provides people who purchase it.

The dependability of the lock can be found in a special patented design. The engineers of this lock wanted it to last a long time, so they designed it with less moving parts.

The product is also designed out of solid steel. This makes the lock very resistant to damage, no matter which terrains you may travel.

Locks are also coated with a black nickel finish to increase the durability. Rubber caps help to keep the product clean and increase the product’s long-lasting reputation. Connor Trailer Hitch Lock - 5/8" Black Nickel Hitch Pin for Class III, IV, V Hitches, 1615190 Receiver Lock

Connor trailer hitch locks have been known for their efforts to increase the safety of their products, and this product lives up to that history.

Like many other Connor products, this lock features a push to lock design in order to reduce the time you have to spend using your key to lock and unlock the device.

Master Lock 377KA Trailer Hitch Lock, Fits 1-7/8 in., 2 in.Master Lock 377KA Trailer Hitch Lock, Fits 1-7/8 in., 2 in., and Most 2-5/16 in. Trailer Couplers, Chrome

 

  • All 1-7/8 and 2 inch couplers
  • Most 2-5/16 inch couplers
  • Works best with RVs, trailers, and other vehicles

Compatibility

When compiling a review list of trailer hitch locks, we discovered that many master locks claimed to cover “most” trailer couplers.

But when you are trying to decide whether or not a lock is right for you, that advice is not very helpful.

Features

Reliability and ease of use are two of the main reasons that customers are drawn to this lock. The lock itself is made out of zinc, which increases its resistance to rust or other types of corrosive materials.

But a major advantage that this product has over other types of locks is its ease of use. While some coupler locks can be difficult to maneuver, customers who have purchased this lock report that both installation and removal are easy. Master Lock 377KA Trailer Hitch Lock, Fits 1-7/8 in., 2 in., and Most 2-5/16 in. Trailer Couplers, Chrome

This is important for both the sake of convenience and for safety; thieves can take advantage of anyone who has difficulty trying to install a lock.

Additional safety features can be found in the design of the shackle, which makes picking the device difficult. The overall design makes it hard to pry off of the coupler.

You will be able to park your trailer and rest comfortably knowing that your valuables are safe.

A major aspect of this lock that customers love is the comparable affordability of the device.

Trimax UMAX50 Universal ‘Die-Cast’ Dual Purpose Coupler LockTrimax UMAX50 Hardware

 

  • Hardened steel
  • Keyhole cover
  • Rustproof finish

Compatibility

While writing trailer hitch lock reviews, it was important to have a number of locks that were truly compatible with as many different couplers as possible.

Many people have multiple trailers, RVs, or vehicles that they might want to haul, and having a lock that is compatible with all of them will save you time and money.

This Trimax lock promises to fit all types of couples, regardless of their size. Trimax UMAX50 Hardware

Features

One of the primary reasons to buy this lock is the number of features that it includes to increase the durability of the product.

The engineers of this lock also included extra security measures to increase the safety of the product. They included a Type A spring loaded key to preventing against any drill outs.

Happy customers are full of praise about the impenetrable nature of the key, which is designed to not break or bend.

Other security features include a hardened steel shackle and a dual ratchet locking system.

Customers did remark that this product was on the more expensive side of the available locks.

But those who purchased it generally reported that the product was worth the extra money because of the increased durability and security. Trimax UMAX50 Hardware

Fastway Fortress 86-00-5015 Universal Coupler Lock for 1 7/8 InchFastway Fortress 86-00-5015 Maximum Security Universal Coupler Lock for 1 7/8 Inch, 2 Inch and 2 5/16 Inch Couplers

 

  • Enclosed trailers
  • Horse trailers
  • RVs
  • Boats
  • Travel trailers
  • ATVs

Compatibility

If your trailer coupler is a tongue type, then the Fastway Fotress Maximum Security Universal Coupler is designed to fit it. This includes any tongue type coupler that is 1-7/8, 2, and 2-5/16 inch.

Features

This lock was designed with a chrome-plated shackle to resist the product’s resilience. In addition to that shackle, the lock includes nickel-plated housing that helps protect against any corrosion.

But the number one draw for many customers when it comes to this lock is the enhanced security features. This lock features two barrel-style keys, which are designed to decrease the possibility that anyone will be picking your lock. Fastway Fortress 86-00-5015 Maximum Security Universal Coupler Lock for 1 7/8 Inch, 2 Inch and 2 5/16 Inch Couplers

 

Another safety feature is the built-in anti-drill design. If a lock picker tries to get around the barrel-style key features, they will still not be able to gain access to your valuables.

Customers also praised the safety feature: the shape of the shackle, which makes it hard to pry off of the trailer.

All of these features come with a limited lifetime warranty.

Master Lock Trailer Lock, Trailer Coupler & Receiver Lock Combo PackMaster Lock Trailer Lock, Trailer Coupler & Receiver Lock Combo Pack, 3794DAT

Compatibility

The specific type of application used by this lock combo pack makes it most compatible for RVs, vehicles, and trailers. The kit includes locks for trailer couplers, receivers, and trailer coupler latch.

Features

The seal on this lock is designed to withstand any weather condition and makes it a favorite among customers who travel or live in tough terrains. Customers in both desert and frigid climates report being happy with the performance of the coupler and latch lock.

If you are worried about precipitation, this combo pack includes a water cap that helps to guard against both water and dirt.

All of the locks included in this kit were designed for increased safety. They include the push to lock mechanisms. Additionally, both keys that you receive as part of this combo pack will open all three of the locks included.

If you are using this pack to haul multiple items, you do not have to worry about keeping track of separate keys while on the road.

Tips on Choosing the Best Trailer Hitch Locks

Size

Trailer Hitch Locks Reviews

When looking for the right lock, first make sure that you will be purchasing a lock that will actually fit what you are trying to haul.

Not all locks are compatible. Even locks that claim to be “universal” or “master locks” may not fit the trailer you are trying to use.

Always measure your dimensions carefully. Double check that the lock you are trying to buy will fit the dimensions of the trailer or other vehicles that you are trying to haul.

Weather

Consider what type of terrain you will be traveling and storing your lock in before you buy it. If you are going to be in extremely cold or excessively hot temperatures, you will need a lock that was engineered to withstand such extreme temperatures.

10 Best Trailer Hitch Locks Reviews

Likewise, are you going to be somewhere that is extremely dusty or wet? Lock covers will help prolong the life of your lock and should be features that you look for when purchasing your product.

Steel vs. Aluminum

Best Trailer Hitch Locks Reviews

Steel products will always be more expensive than products that are made from aluminum. Many companies may promote their aluminum locks as being easier to handle because they are light-weight.

But an important fact to keep in mind is that light-weight aluminum locks are easier to bypass.

A skilled thief can easily break through an aluminum lock. But that same thief will have a much harder time bypassing a lock made of hardened steel.

Making the Decision

If you’ve read our trailer hitch lock reviews, then you should be ready to determine the best trailer hitch lock for your needs.

Where do you leave your trailer? Is this place secure? Do you know that the lock for storage unit also needs to be chosen carefully?

All you need to do now is review your choices and decide which lock will keep your valuables safe.

Consider what you are going to be carrying, what level of security you want and need, how long you want your lock to last, and what price fits your budget. Then purchase the lock that will keep your valuables safe so you can focus on other parts of your trip.

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