The 12 Best Trailer Hitch Locks (Review) in 2022 is reader supported. When you buy through links on our site, we may earn an affiliate commission.

You might be surprised to learn that travel trailers or fifth wheels are among the most frequently stolen types of vehicles, since they can be unhitched and hooked up to any vehicle with the right hitch and towed away in less than a minute, sometimes just seconds with a pro. As your home on wheels is quite a substantial investment, you need to protect it from theft by using the best trailer hitch lock when you must let your trailer get out of your sight now and then. After it’s secured by a hitch lock, your trailer could never be moved by anyone else besides its owner.

Fortunately, there are hitch locks for both hitched and unhitched trailers, so you can secure your investment while at the campground as well as when it’s parked in your driveway at home in the off season. As with other RV accessories, the market for this product is vast and diverse. But we have done the hard work of browsing and comparing models and diving into in-depth trailer hitch lock reviews to evaluate their performance to bring you a selected list of the very best lock for trailer hitch models for different purposes. They will give your trailer extended protection for many years to come, and you your peace of mind to better enjoy your trips.

To make your purchasing decision and user experience as silky as possible, this comprehensive guide will also explain how the different types of trailer hitch locks work, how to use  and take care of them for maximum longevity, important buying criteria, the most prestigious manufacturers, and answers to frequently asked questions.

Comparison Chart Of The Best Trailer Hitch Locks

 Product's namePriceKey FeaturesMore Info
Master Lock Receiver Lock, 1/2 in. and 5/8 in. Swivel Head Receiver Locks, Weather Resistant...Master Lock Receiver Lock, 1/2 in. and 5/8 in. Swivel Head Receiver Locks,...$$4-pin cylinder
Snap-on cover
Swivel locking head
See Latest Price
REESE Towpower 72783 Coupler Lock, Adjustable Storage Security, Heavy-Duty Steel, Yellow and ChromeREESE Towpower 72783 Coupler Lock, Adjustable Storage Security, Heavy-Duty...$20.75$$Adjustable
Steel lock bar
Aluminum body
See Latest Price
CURT 23518 Black Trailer Hitch Lock, 5/8-Inch Pin Diameter, Fits 2-Inch ReceiverCURT 23518 Black Trailer Hitch Lock, 5/8-Inch Pin Diameter, Fits 2-Inch...$$All-steel construction.
Powder coat finish.
Watertight dust cap
See Latest Price
Connor Trailer Hitch Lock - 5/8' Black Nickel Hitch Pin for Class III, IV, V Hitches, 1615190...Connor Trailer Hitch Lock - 5/8" Black Nickel Hitch Pin for Class III, IV,...$$$$Push-to-lock
Heavy-duty steel
All-weather grip
See Latest Price
Cocoweb Chrome C-Lock Heavy Duty Locking 5/8' Inch Hitch Pin with Weather Guard Protection - HHLCLCocoweb Chrome C-Lock Heavy Duty Locking 5/8" Inch Hitch Pin with Weather...$$$$Weatherproof keycap
Barbell-style locking mechanism
Optional sizes
See Latest Price
Master Lock - Universal Size Fits 1-7/8', 2', and 2-5/16' Couplers - Trailer Locks #389DATMaster Lock - Universal Size Fits 1-7/8", 2", and 2-5/16" Couplers -...$$Bright red finish
Resist rust and corrosion
Advanced locking mechanism
See Latest Price
motormic Trailer Hitch Lock Pin Set - 5/8' and 1/2' Extra Long Black Pins with One Locking System -...motormic Trailer Hitch Lock Pin Set - 5/8" and 1/2" Extra Long Black Pins...$$Safety clip
Adjustable O-rings
Silicone protection cap
See Latest Price
Trimax UMAX100 Premium Universal Dual Purpose Coupler Lock , BlackTrimax UMAX100 Premium Universal Dual Purpose Coupler Lock , Black$$$Key hold cover
Ballistic nylon housing
Hardened steel body
See Latest Price
Tow Ready (63228) 'Gorilla Guard' Coupler Lock for 2' CouplersTow Ready (63228) 'Gorilla Guard' Coupler Lock for 2" Couplers$$Shielded
Push-button locking
Tool-free installation
See Latest Price
Reese Towpower 7014700 Tow 'N Store Lock Kit, YellowReese Towpower 7014700 Tow 'N Store Lock Kit, Yellow$$Brass coupler lock
Dual-bent receiver lock
Flat keys included
See Latest Price
Hitch Lock, Ohuhu Receiver Hitch Pin Lock - 1/2' and 5/8' Receiver Trailer Hitch Lock - Steel Chrome...Hitch Lock, Ohuhu Receiver Hitch Pin Lock - 1/2" and 5/8" Receiver Trailer...$Push-to-lock design
Waterproof and dirtproof cap
Solid steel construction
See Latest Price
AMPLOCK U-BRP2516 RV/Trailer Coupler Lock (fits 2 5/16 inches Coupler)AMPLOCK U-BRP2516 RV/Trailer Coupler Lock (fits 2 5/16 inches Coupler)$$$$$Rotative face
Two-part locking mechanism
Shock absorbent materials
See Latest Price

The Basics Of Trailer Hitch Locks

What is a trailer hitch lock?

An RV hitch lock is designed to keep your trailer hitch and the receiver together, unless you unlock it with a key. These locks prevent anyone from lifting the receiver and unhitch the trailer while you’re away from your rig.

Why you absolutely need a trailer hitch lock

Theft of a trailer or a boat can happen fast. It just takes mere minutes, even less than a minute, for the experienced pros to back up a truck, jump out, unhitch the trailer, then hook up the trailer  to their vehicle and take off with your valuable investment.

In recent years, with the rising popularity of RV life, trailers and other classes of recreational vehicles were considered the 4th most common vehicle type to be stolen, given the fact that a trailer or fifth wheel can be unhitched without a lock and simply hooked up to another towing vehicle.

And since your home on wheels is such a substantial investment, it’s logical to invest in insurance by getting the best locking hitch pin to protect your beloved RV from theft. While some skeptical campers might argue that the real pros should be able to handle these locks anyway, the best trailer hitch locks on the market today have stood the test of time, as testified by many full-time campers. And should the worst scenario happen, they would still deter and make the stealing much more difficult, thus making it more obvious that your trailer is being handled by someone other than its owner. 

Here, it’s important to point out that some folks are using a padlock instead of an actual trailer hitch lock. An experienced and well-equipped thief can easily cut through a conventional padlock, but no so with the best trailer hitch locks.

Types Of Trailer Hitch Locks and How They Work

Travel trailer hitch locks come in different shapes, sizes and locking mechanisms, so to understand how a trailer hitch lock works, or how to lock a trailer hitch, things must be put into perspective, regarding the different types of hitch locks.

Coupler Hitch Lock

A coupler hitch lock is the ideal protection for your home on wheels if you need to unhitch your trailer and leave it at the campground to take your tow vehicle away on a grocery shopping trip or running errands. If you park your rig on your driveway at home in the off season, you’d need a coupler hitch lock to protect it from theft.

Coupler locks have the unique ability to protect your travel trailer when it’s unhitched from your towing vehicle. Coupler hitch locks usually have a U-shaped design and mount to the top of the coupler on your trailer’s tongue. The lock has a ball that would fit up into the coupler and thus locking the entire setup down. This prevents anyone with a towing vehicle equipped with an appropriately-sized hitch ball from hooking your unguarded trailer up and towing away.

Receiver Hitch Lock

The average receiver locks for trailers look like small metal pins with locks on the ends. Some models even have locks on curve ends that could take time to pull out. Receiver hitch locks are designed to fit crosswise and slide into the designated fastener holes on your hitch receiver, where the hitch meets the frame of the tow vehicle. Once locked in, the pin slips between the trailer tongue and the receiver.

This type of trailer hitch lock excels at securing hitched trailers and is designed to replace the standard hitch pin that simply secures with a metal clip. That said, once your trailer is unhitched from your towing truck, these locks won’t offer the kind of protection that a coupler hitch lock can.

In addition to securing your trailer when it’s hitched to your tow vehicle, receiver hitch locks are also very handy for locking a second compact vehicle behind your motorhome. It’s also ideal for locking the various hitch-mounted accessories that can be installed on the back of your rig, including bike racks, kayak racks and cargo carriers, or any other accessory that you might secure into your hitch receiver. 

Selecting the best trailer hitch lock for your rig starts with determining whether you need a receiver lock or a coupler lock or both. If you know what you’re looking for, dive into our handpicked list of the absolute best trailer hitch locks on the market today based on their specifications, features, materials and level of protection, as testified by thousands of customers’ in-depth trailer hitch lock reviews as well as experts’ opinions. 

There are both receiver locks and coupler locks for you to choose from. But if you don’t know what to look for in the best trailer hitch lock for your circumstances, skip to the next section to learn the most important buying criteria, including how to select an appropriate hitch lock of the correct size for the best locking performance.

Top-Rated Trailer Hitch Locks

Now, let’s dive into our delicious handpicked list of the very best trailer hitch locks on the market. Our selection is based on the products’ specifications, which are matched with in-depth trailer coupler lock reviews by verified buyers and experts’ opinions to gauge the true capabilities of these locks in different towing settings.

In addition to utmost security from the unscrupulous minds, these trailer hitch locks also offer a good balance of all the most important buying criteria for the most pleasant using experience over the years.

Here, you will find both receiver locks and coupler locks for different purposes. If you know what you need for your specific towing circumstances, dive right in. Otherwise, skip to the next section to learn crucial buying considerations in to get the best band for your buck!

1. Master Lock 2866DAT Receiver Lock – Best Overall

Why This Is The Most Well-Rounded Trailer Hitch Lock:

By employing a 4-pin cylinder, the Master Lock 2866DAT Receiver Lock excels at resisting picking attempts, giving you complete peace of mind when you’re away from your trailer. Boasting a swivel locking head that could rotate 360 degrees, Master Lock 2866DAT is a breeze to operate with a highly accessible keyway. 

Thanks to the snap-on cover, the lock is well protected from dust, dirt and moisture on the open road, thus maximizing the unit’s longevity and minimizing the likelihood of seizing. Moreover, as this lock from Master Lock is made from premium-grade steel and chrome plated, its longevity is outstanding, even when subjected to varying weather conditions on the road, as testified by full-time RVers who travel year-round.

Engineered as a plain push-to-lock model, 2866DAT would be locked once you push the lock body into the pin and remove the key. Regarding ease of use, Master Lock 2866DAT Receiver Lock is deemed unmatched in its price range by many trailer hitch lock reviews. To reassure buyers, Master Lock backs its lock with a sublime limited lifetime warranty, which should speak volumes about the reliability and durability of this trailer hitch lock.

As for compatibility, Master Lock 2866DAT Receiver Lock fit hitches that come with a 1.25/2-inch receiver. To maintain safe operation, you need to pay attention to the load rating as well.

I’ve used quite a few difference receiver hitch locks and this is, by far, the nicest. I like the fact that it comes with 2 sizes of hitch pins as that is the reason I need to buy another lock. My other 3 2-inch receiver locking hitch pins had wider shafts and didn’t fit my wife’s receiver on her new car. Before this I thought these were one size fits all. Apparently not. The lock cylinder is also rubber covered which is nice as it rests on a ledge on our receiver hitch so the rubber help prevent messing up the finish on the hitch.

Shared by Rockadile


  • Long-lasting, backed with limited lifetime warranty
  • Snap-on cover for protection from the elements
  • Excellent security


  • Instances of seizing has been reported
  • Flimsy keys

2. Reese 72783 Coupler Lock – Best Value for Money

Why This Offers The Best Value For Money:

Reese is a renown manufacturer of a wide variety of trailer hitch accessories, and they also excel in the arena for the best trailer hitch locks. The 72783 Coupler Lock is no exception. What sets this Reese 72783 Coupler Lock apart from its competitors is that it incorporates a first-class ratchet design that boasts an assortment of locking positions for universal fitness. Therefore, adapting 72783 to different towing setups is essentially a walk in the park. 

In terms of security, the Reese lock is made to resist picking, prying and drilling which means it keeps your trailer secured at all times. In the case that you must leave your unhitched trailer unattended every now and then, 72783 would be a worthwhile investment. Durability is also its strong point, thanks to a combination of aluminum body and steel lock bar, making it both light and heavy-duty. 

It’s worth noting that for its all-around excellent design and performance, Reese 72783 Coupler Lock is available at an affordable price too. This gives it extra points in the eyes of RVers seeking the best trailer hitch locks without breaking the bank.

Another handy feature is its bright yellow finish that is highly visible from a distance and good at deterring the unscrupulous minds. As for post-purchase support, Reese 72783 Coupler Lock is backed with a limited lifetime warranty. Hence, if your hitch lock fails because of manufacturing defects, it’s possible to claim a free replacement.

We have been very happy with this lock. We purchased a trailer and are currently storing it until we need to use it and were worried someone may take the trailer from the lot. This is a very inexpensive bit of piece of mind for us so we don’t have to worry are much. If someone really wants the trailer bad enough to cut the lock, then not much would stop them anyways.

Also, this has two keys, which make it nice in case we ever lose one. It fits nice and secure, and is easy to lock and unlock for quick removal when we travel with it. I really have no complaints. It isn’t the highest security lock, but most padlocks aren’t.

Shared by Ashley


  • Economical
  • Sturdy and compact
  • Unrivaled adaptability


  • Keyway should be overhauled
  • Flimsy keys

3. Curt 23518 Trailer Hitch Receiver Lock – Editor’s Choice

Why It’s Our Editor’s Choice:

Thanks to the integration of barbell-style locking mechanism, the Curt 23518 Receiver Lock presents an impenetrable layer of security to trailers. Another plus is that it’s very easy to use: as it’s a turn-lock model, the Curt lock could be locked as well as unlocked easily. 

Made from quality carbon steel, the Curt 23518 Receiver Lock is often praised for its solid construction. Another feature that would ensure longevity is its use of an advanced watertight dust cap that stops the elements from reaching its internal components, allowing it to work reliably in a variety of camping and towing settings. Therefore, Curt 23518 Receiver Lock is known as the best trailer hitch lock for those that hit the road year-round.

For the sake of convenience, the Curt lock is delivered to customers alongside two keys. Thus, you may keep one key around for regular use and put the spare in a discreet location for emergencies. Regarding compatibility, Curt 23518 Receiver Lock is made to suit 2-inch receivers but it’s not suited for doubled-walled types. As 23518 packs a comparatively basic setup process, you don’t have to spend too much time and energy installing it.


  • Easy turn-lock mechanism
  • Watertight dust cap for better protection from the elements 
  • Heavy-duty material for extra longevity
  • Slim and sleek
  • Excellent value for money


  • Less than ideal quality control
  • Not long enough for certain setups

4. Connor 1615190 Receiver Lock

Why We Love It:

Constructed using heavy-duty steel, Connor 1615190 Receiver Lock could handle a wide range of abuses as well as outdoor elements. In addition, the lock from Connor integrates an innovative design that contains relatively few moving parts compared to its competitors. Because of that, in terms of reliability, 1615190 is considered to be the best trailer hitch lock of its type nowadays. In the case that you want peace of mind, you should think about putting Connor 1615190 Receiver Lock in your shortlist.

About handling, the all-weather grip of the Connor lock ensures that you would be able to get a hold of it in various conditions. Also, thanks to the inclusion of convenient push-to-lock and auto-release mechanisms, 1615190 allows its users to lock and unlock it in mere seconds. Since the key slot of Connor 1615190 Receiver Lock is covered by a rugged rubber cap, it’s well-protected against corrosion and gunk in use. For compatibility, the lock made by Connor is going to work well on all hitches that have a 2/2.5-inch receiver.

As it’s sold at a reasonable price, Connor 1615190 Receiver Lock is well-liked by budget-mind powers of trailers. Besides that, the lock of Connor is accompanied by a splendid 1-year limited warranty too.

The lock is gunmetal gray has a rubber grip around the locking mechanism. The lock has an attached rubber cover. I have only used it for one trip and it worked great. Not sure why there is all of this concern about it being long. It worked great for me and it did not rattle at all. It is a nice looking receiver pin and lock and I had no problems with it and would recommend this lock to others. It is also made in the USA which is a plus!

Shared by Redhead


  • Fair cost
  • Intuitive operation
  • Dependable and reliable


  • Quality control still needs some work
  • A couple of users complain locks getting rusty

5. Cocoweb C-Lock Trailer Hitch Receiver Lock

Why We Love It:

Looking for a hitch lock for trailers with instantaneous installation? If that is so, you must take a look at Cocoweb C-Lock Receiver Lock. During the installation of the Cocoweb lock, there is no need to worry about drilling, mounting hardware and similar issues. All you have to do is to slide in the pin, lock it and that is going to be everything. Naturally, to people that need to secure their trailers in a hurry, Cocoweb C-Lock Receiver Lock is undoubtedly the best trailer hitch lock available for purchase on the market.

Since the Cocoweb lock employs a barbell-style locking mechanism, it guarantees optimal fitness and prevents thieves from removing it forcefully at the same time. In addition to that, Cocoweb C-Lock Receiver Lock keeps the delicate key hole covered with a weatherproof key cap. Hence, you would rarely experience obstruction as you turn the key to remove the lock. Interestingly, the lock made by Cocoweb is offered in plenty of sizes so it’s simple to find one that is compatible with your trailer.

Like many other hitch locks, Cocoweb C-Lock Receiver Lock is accompanied by two keys so you have a spare in case things go south. As for price, the lock that comes from Cocoweb is considered to be highly affordable.


  • Swift setup
  • Well-made and rugged
  • Hassle-free operation


  • A few locks get rusty over time
  • Unresponsive customer service

6. Master Lock 389DAT Trailer Hitch Coupler Lock

Why We Love It:

As it’s engineered to be a universal model, Master Lock 389DAT Coupler Lock could be used to secure a wide range of trailers nowadays. Because of that, countless trailer coupler lock reviews give the lock made by Master Lock positive remarks for its compatibility. Besides that, due to its bright red finish, 389DAT usually stands out from the surrounding which would discourage illicit intentions. The incorporation of an advanced locking mechanism also lets Master Lock 389DAT Coupler Lock resist locking as well as prying.    

Capable of enduring extensive exposure to elements in the outdoors, the lock from Master Lock works well in various environments. The use of high-quality materials means rust and corrosion would rarely cause issues to Master Lock 389DAT Coupler Lock. As proof of confidence, Master Lock is even willing to back its lock with a limited lifetime warranty that brings peace of mind to customers. Compared to the average travel trailer hitch locks, 389DAT surely seems expensive but the values it possesses match the price.

In use, Master Lock 389DAT Coupler Lock features straightforward operation. Thus, the hitch lock of Master Lock could be put to good use by everyone.


  • Security is outstanding
  • Convenient and durable
  • User-friendly handling


  • Kind of costly
  • A couple of locks arrive inoperable

7. Motormic Trailer Hitch Receiver Lock

Why We Love It:

Reliable and long-lasting, Motormic Receiver Lock gets a shower of praise from countless owners of trailers around the globe. Packing extra long pins and adjustable O-ring for a snug fit, the Motormic lock gives a good account of itself in lots of setups. As Motormic Receiver Lock integrates a basic push-to-lock mechanism, locking it is just a walk in the park. To unlock the lock from Motormic, you only need to insert the key and proceed to turn it one-quarter.

Featuring a body constructed using forged steel and powder-coated finish, Motormic Receiver Lock resists rust and corrosion relatively well. Aside from that, the Motormic lock boasts a silicone protection cap to keep foreign materials like dirt, grime and alike out of the key slot. As a result, Motormic Receiver Lock is able to maintain consistent performance in challenging conditions. The lock for trailers of Motormic is shipped alongside by a safety clip that boosts the level of security too.

In terms of affordability, Motormic Receiver Lock is available at a budget-friendly price so owners of trailers could pick it up without much difficulty. If you need technical assistance, the customer service set up by Motormic would help you resolve an assortment of issues.


  • Resilient construction
  • Delivery service is top-notch
  • Sublime aftermarket support


  • Users report receiving locks with incorrect dimensions
  • The finish wears off fast

8. Trimax UMAX100 Coupler Lock

Why We Love It:

By incorporating ballistic nylon housing, Trimax UMAX100 Coupler Lock could take on multiple hammer blows and still remain essentially functional. That is why UMAX100 tends to be regarded as one of the finest locks money can buy once it comes to resistance against physical impacts. Furthermore, the lock of Trimax handles heat, snow, moisture and other elements well so it’s going to work like a charm in harsh weather. About handling, Trimax UMAX100 Coupler Lock is deemed highly portable thanks to its lightweight construction.

As it utilizes a tough spring-loaded locking mechanism, Trimax UMAX100 Coupler Lock would keep trailers well-secured while unhitched. Capable of resisting drilling, the lock made by Trimax proved to be a high-security model that you could count on. Upon purchase, UMAX100 comes with a sturdy key designed to address bending, breaking and alike. Because of that, Trimax UMAX100 Coupler Lock allows people to avoid the possibility of having to cut open the lock due to damaged keys.

Being a high-priced model, UMAX100 requires certain considerations but if you have money to spend and care about quality, it’s the best trailer hitch lock you may get.


  • Prompt shipping
  • Excellent integrity
  • Solid and intimidating profile


  • Quite expensive
  • Customer service is barely acceptable

9. Tow Ready 63228 Coupler Lock

Why We Love It:

Employing a shielded design, Tow Ready 63228 Coupler Lock is protected against many tampering devices so thieves would likely have an extremely hard time picking it. In addition, the lock made by Tow Ready uses a reliable push-button locking mechanism that locks and unlocks consistently. Therefore, 63228 adapt well to all kinds of environments and personal demands from owners of trailers. The economical cost of Tow Ready 63228 Coupler Lock makes it the best trailer hitch lock for those that happen to have tight wallets as well.

About compatibility, the Tow Ready lock matches all standard 2-inch couplers that contain a flat lip on the bottom edge. The absence of tools in the setup process means you could add Tow Ready 63228 Coupler Lock to your trailer in a blink of an eye. Besides that, as 63228 is light, it possesses splendid handling characteristics so you should never break a sweat during the installation. In the case that you decide to pick up Tow Ready 63228 Coupler Lock, you would receive two keys so you have a spare for emergencies.

As for aftermarket support, 63228 is backed by a decent 1-year limited warranty from Tow Ready. The warranty of Tow Ready features extended coverage too which is undoubtedly a major plus.


  • Affordable
  • Secured operation
  • Portable and dependable


  • Users complain about keys getting stuck
  • Some locks arrive without keys

10. Reese 7014700 Lock Kit

Why We Love It:

So you want to secure your trailer while it’s hitched as well as unhitched? Then you would surely come to like Reese 7014700 Lock Kit. Since it includes a coupler lock and a receiver lock, 7014700 could guarantee absolute security for trailers in lots of settings. One interesting thing about the Reese locks is that being keyed alike, they use the same flat key and Reese also gives people a spare. Hence, if you grab the lock kit from Reese, you don’t have to remember which key opens which lock.

Engineered for universal installation, the coupler lock in the Reese 7014700 Lock Kit boasts superb compatibility compared to typical hitch locks. Regarding the receiver lock, it should match 0.5 and 0.625-inch receivers so all in all, adding 7014700 to trailers is a cakewalk. Aside from that, thanks to the lightweight bodies, both Reese hitch locks packs outstanding portability. As a result, setting up the locks on and putting them away tend to only take a couple of seconds.     

Available at a reasonable price, 7014700 is undoubtedly a good buy for those that want the best trailer hitch lock without having to spend big bucks. The 1-year limited warranty that accompanies the lock kit made by Reese is reassuring too.


  • Straightforward handling
  • Wonderful compatibility
  • Rugged and secured


  • Seizing seems to be common
  • Mediocre quality control

11. Ohuhu Receiver Lock

Why We Love It:

Simple and robust, Ohuhu Receiver Lock is well-received by people that prioritize practicalness once it comes to hitch locks. Utilizing a push-to-lock design, the lock made by Ohuhu is widely deemed a breeze to operate: all you need to do is to push in the pins until you hear a “click” sound. To unlock Ohuhu Receiver Lock, you simply have to insert the key, turn it and the pin is going to pop out like other models. The key hole is covered by a waterproof and dirtproof cap so reliability is excellent.

Built using top-class solid steel, the Ohuhu lock resists rust as well as corrosion. That is why Ohuhu Receiver Lock would keep your trailer secured even in harsh conditions. In terms of compatibility, the lock of Ohuhu uses two pins, one for 0.5-inch receivers and one for 0.625-inch receivers. Thus, Ohuhu Receiver Lock should work like a charm in an assortment of towing setups.

To make things convenient for the users, Ohuhu offers its hitch lock alongside two keys. So in the case that you lose one key, you still have a spare round to unlock Ohuhu Receiver Lock.


  • Cost is fair
  • Sturdy and reliable
  • Sublime delivery service


  • Inconsistent performance between locks
  • Several customers complain about missing keys

12. AMPLock U-BRP2516 RV/Trailer Coupler Lock

Why We Love It:

Boasting a resilient heady-duty construction that incorporates a mix of stainless steel and ducted cast iron, AMPLock U-BRP2516 Coupler Lock possesses impressive durability. Able to absorb shocks, U-BRP2516 would proceed to fold/bump instead of falling apart after it receives major blows. In addition to that, due to its considerable mass, the AMPLock lock slows down all attempts to cut it open. Since it employs a rotative face, AMPLock U-BRP2516 Coupler Lock also resists drilling well.

By integrating a high-security two-part locking mechanism, the lock made by AMPLock is good at thwarting picking attempts. Moreover, U-BRP2516 is capable of maintaining a snug fit which should remove all possible holds that thieves can use. Because of that, AMPLock U-BRP2516 Coupler Lock is considered to be the best trailer coupler lock on the market. Also, the AMPLock lock takes seconds to set up so you don’t have to worry about draw-out installation.

AMPLock U-BRP2516 Coupler Lock is sold with several keys but if required, owners of trailers could order replacement keys. AMPLock offers trailer hitch locks that are keyed alike too.


  • Tough keys
  • Durability is splendid
  • User-friendly operation  


  • High-priced
  • Incompatible with certain trailers

How to Choose The Best Trailer Hitch Lock

Just as receiver locks and coupler locks are made for different purposes, the best trailer hitch lock for your towing situation depends on many factors. For instance, no matter how solid and expensive a hitch lock is, it’ll be utterly useless if it doesn’t fit the hitch ball or pin hole on your tow vehicle. While comparing different models, keep in mind the following important criteria to make sure your money is well spent on a compatible hitch lock that will be easy to maintain and will provide you with good service for many years to come.


For coupler locks, the diameter of the ball on the coupler lock must match the diameter of your hitch ball; that’s the only measurement you need to make to ensure compatibility. Meanwhile, if you’re buying a receiver hitch lock, the lock size you need will depend wholly on the hitch class on your towing vehicle. 

There are five classes for the hitches on towing vehicles as well as recreational vehicles:

  • Hitch Class I: ½-inch pin, 1-¼ inch receiver
  • Hitch Class II: ½-inch pin, 1-¼ inch receiver
  • Hitch Class III: ⅝-inch pin, 2-inch receiver
  • Hitch Class IV: ⅝-inch pin, 2-inch receiver
  • Hitch Class V: ⅝-inch pin, 2-inch, 2-5/16-inch, and 2-½  inch receiver

The class of your hitch will decide the size of the pins on the receiver lock. A class I or a class II hitch will require a 1-1/4 inch receiver lock. A class III, class IV or class V hitch will require a 2 inch receiver lock.

Of course, you can always directly contact your tow vehicle’s manufacturer to confirm the appropriate size of a compatible trailer hitch lock. And to double-check to make sure the receiver lock you’re planning to buy will fit your hitch snugly, it’s recommended that you measure the overall width of the outside of the receiver on your tow vehicle at the hitch pin hole. Then, make sure the inside width of the receiver lock you want is at least as wide as the width measurement you just made. 


As the hitching arrangement changes considerably between trailers and some locks are built for very specific vehicles and purposes, you have to give compatibility some thoughts before buying a hitch lock. In the case that you grab a lock that fails to match the towing setup of your trailer, it’s as good as a paperweight. 

In addition to picking a lock of the right size as above, you should opt for a unit labeled as a universal trailer hitch lock which can work with a variety of recreational vehicle and hitch accessories. This is especially so if you rent RVs for occasional camping trips or if you own more than one trailer for different purposes. Universal locks often fit with coupler sizes 1-⅞”, 2”, and 2-5/16”. 


Due to the purpose of hitch locks, it’s quite obvious that security would be one of the top criteria. The last thing you want to pick up is a lock that may be picked and removed in a moment. Here, it’s important to spend some time reading the reviews of other owners of trailers to get accurate assessments and narrow down your shortlist.  

Most trailer hitch locks feature a keyed locking mechanism to keep them from being tampered with (you probably won’t find a combination lock for a trailer hitch though). For instance, a barbell locking mechanism is quite formidable in deterring picking and prying attempts, since it is designed to fit more snugly into your hitch, making it extra secure. Some of the best trailer hitch locks today even allow you to use a third-party padlock for reinforcement to provide an extra layer of security.

The most important point when it comes to security that many buyers overlook is that you’d want to make sure that the lock you buy comes with keys that are manufactured specifically for that lock alone, instead of sharing the same keys with that the next customer who buys the same lock has, or the same keys with many other towing accessories made by the same manufacturer. 

For utmost security and your peace of mind, you should look for a lock that comes with keys produced uniquely and specifically for that lock, and it may cost you a bit more money, but it won’t break the bank and it’s well worth it. There’s not much point trying to save a few bucks, knowing that your trailer hitch lock is exposed to the following risks:

Nowadays, many manufacturers of trailer hitch locks mass produce the keys for the same model, so that you and any other buyer who buys the exact same hitch lock would have identical keys. This is a problem when you, just imagine, park your RV at a crowded campground, and many people might be walking around with the keys to each other’s hitch locks. 

What’s worse than this is that some manufacturers actually mass produce keys for different accessories for RVs, trucks, or devices for the home that they sell. For instance, a buyer of a locking product for residential use from the same manufacturer as your hitch lock may have a key that can unlock your trailer hitch lock. 

Weather Resistance

The vast majority of trailer hitch locks spend their entire lifetimes outdoors and thus are constantly exposed to damaging UV radiation, rain, snow, dust and dirt. The good news is that the best trailer hitch locks these days are specifically designed to handle a whole host of additional environmental factors. 

Look for models made from heavy duty material and have a powder-coated finish to hold up well under varying weather conditions and reduce the amount of rust that builds up on and inside the lock over time. Additionally, the most weather-resistant trailer hitch lock should come with a cover to protect both the exterior and interior parts of the lock. 

Regarding materials, a high-quality or hardened steel would be the most heavy-duty. The best trailer hitch locks are often made from steel, which is both long-lasting and extremely difficult to break, even when subjected to a strong set of bolt cutters. The second most popular material for the best trailer hitch locks is aluminum. The main selling point for aluminum is that it’s reasonably strong while being lighter than steel. Meanwhile, some manufacturers are using less than ideal materials in an effort to reduce the weight of their locks as well as manufacturing cost, thus compromising their hitch lock’s ability to deter picking and cutting.  

Ease Of Use

It’s a good idea to prioritize dependable hitch locks that keep trailers secured and give thieves a tough time. That being said, you should avoid overly complex models as they may add unneeded complications to the coupling/decoupling process. For ease of use, look for a push-button lock mechanism. Towing operations already pack a wide range of issues that require attention so it’s best that you select an intuitive lock for your trailer. Don’t let ease of use compromise security and durability though as in the end, you still need a solid hitch lock that deters theft.  


Nowadays, hitch locks for trailers come at an assortment of prices so plenty of models exist for every shopping budget. The price range for trailer hitch locks these days are actually quite wide. There are models that cost less than $20, many that cost more than $100 and some other that cost north of $200.

Usually, RV owners don’t have to spend a fortune to get decent hitch locks but you must remember the rule of thumb “you get what you pay for”. Dirt-cheap hitch locks would never incorporate state-of-the-art technologies as well as top-of-the-line materials. All in all, if you’re looking for a solid lock that’s going to provide reasonable security as well as being user-friendly and durable, we’d recommend identifying a hitch lock in the $50 to $150 range.

Best Trailer Hitch Lock Brands

The number of trailer hitch lock manufacturers is enormous, and if you well understand your towing needs and know what you want in a hitch lock, feel free to try out the products that you believe will be a good fit for your towing setup. That said, going with major manufacturers is always a safe bet. 

Firstly, since their products are more widely known and popular, the pool of buyers is larger, so there are more in-depth reviews for you to rely on when comparing models and more people for you to ask questions. Secondly, prestigious manufacturers, like the ones below, typically provide good customer service and after-sale support as well as a warranty, so you’ll more likely to have a smooth purchasing experience.


CURT is a name that you would come across several times in any reviews on any product related to trailer hitches. In this arena, the name CURT is synonymous with quality and longevity. With substantial experience in designing hitches and associated accessories, CURT knows exactly what most people come across in towing operations. Their towing accessories are top-notch, and their hitch locks are praised for their well-rounded design and performance.


Once it comes to hitching goods, Reese is the name that you could count on. In the case that all you need is a robust trailer hitch lock, you should think about buying from Reese

Proven Locks

Known for using high-quality materials in its products, Proven Locks is considered to be one of the leading brands of hitch locks for trailers. In use, models of Proven Locks would handle essentially everything that people throw at them.

Master Lock

By constantly incorporating new production techniques, technologies and so on, Master Lock is able to assemble outstanding hitch locks that work well in multiple settings. Being a long-established brand,  Master Lock possesses a well-developed customer service as well.


Bolt is known for their innovative hitch locks that boast a single-key mechanism. Simply insert your vehicle’s ignition key into the BOLT trailer hitch lock lock, turn it once and the lock mechanically and permanently learns the key code. You might be aware that while your ignition key might have the same cut and looks just identical to your neighbor’s who owns the same Ford, the two keys are different inside. So this break-through BOLT’s locking mechanism allows for security while saving you the trouble of having to carry around extra keys and looking for the spare one when you lose your primary key, which happens to be very common.


Headquartered in Colorado, Trimax tirelessly analyzes the latest market demands and produces goods that meet the expectations of the customers. In addition to that, hitch locks for trailers of Trimax also come at reasonable prices.


Boasting rigorous quality control checks and tests, Connor is held in high esteem by owners of trailers around the globe. Unsurprisingly, regarding reliability and consistency, trailer hitch locks of Connor prove to be unmatched.


AMPLOCK produces durable and extra strong locks for a variety of setups, including hitch trailers, commercial trailers, gooseneck trailers, boats, and door padlocks. Every single lock that AMPLOCK offers receives at least 4.5-star ratings on Amazon and other major e-retailers. They are know more for their strong, rust-resistant coupler hitch locks.

So, Which Is The Best Trailer Hitch Lock

  • Best Overall: Master Lock 2866DAT
  • Best Value For Money: Reese 72783 Coupler Lock
  • Editor’s Choice: CURT 23518

Our obvious choice for the best trailer hitch lock is Master Lock 2866DAT. This reliable receiver lock includes the Push to Lock locking mechanism. Long-lasting, backed with limited lifetime warranty. The Weather Tough seal and water tight cap provides additional protection from moisture and dirt.

Another great option is Reese 72783 Coupler Lock – A premium coupler lock constructed with an aluminum body and heavy-duty steel lock bar. Resists picking, prying and drill outs. Guards against truck or trailer tow-away theft in storage.

Our personal choice is CURT 23518. Made with high-strength steel construction for extra longevity. The lock is shielded against corrosion with a durable powder coat finish, while the watertight dust cap protects the internal components from the elements.

FAQs About  Trailer Hitch Locks

1. What should I do if I lose my hitch lock key?

This is a pretty common headache for forgetful folks who forgot to separate their two hitch lock keys and keep the spare one in a secure toolbox somewhere. Many campers have successfully used bolt cutters to cut it off if there’s a gap to put them in place, or if there’s no such gaps, a hacksaw or an angle grinder and a cutting wheel or even a heat source would do the trick. Many have chosen to simply drill the lock out. 
Then all that’s left to do is to buy a new lock, and remember to separate the two keys that come with your new lock to avoid repeating this mishap.

2. How to clean or maintain a hitch lock?

Since the hitch lock will be exposed to varying temperatures and outdoor elements at all times, even the best trailer hitch locks would wear out over time and seizing can occur. When this happens, you might not be able to get the key all the way in, and when you finally do, the key might not turn at all. And the only thing trailer owners can do is to cut the lock off and replace it with a new lock. This is actually a common problem on most trailer hitch locks when they sit for months on end without any use or maintenance.
Like everything else, you will need to give your trailer hitch lock proper maintenance and some protection from the harsh weather wherever possible to prolong the life of your unit. In the first place, keep the keyhole covered with the replacement dust cover over the keyhole. In addition, spray down some auto-part lubricant in the keyhole every few months to keep it nicely greased and protected from corrosion, and after that, insert the key and turn the lock core back and forth a few times with your scheduled greasing. 
If you want the most weather-proof trailer hitch lock, consider one with a ball-bearing design, which will less likely seize up over time.

3. Can I tow with a hitch lock? Can a hitch lock be used in place of a hitch pin and safely tow a boat or trailer?

Yes, many campers have used a trailer hitch lock instead of a hitch pin and it will work just fine for towing a trailer or a boat. The hitch lock might not have an official rating so try to contact the manufacturer to inquire in details, but in many cases, the hitch lock’s towing capacity can even exceed those of the towing vehicle or of the trailer hitch.

4. How to determine the hitch size for hitch locks?

For coupler locks, the diameter of the ball on the coupler lock must match the diameter of your hitch ball; that’s the only measurement you need to make to ensure compatibility. Meanwhile, if you’re buying a receiver hitch lock, the lock size you need will depend wholly on the hitch class on your towing vehicle. 
There are five classes for the hitches on towing vehicles as well as recreational vehicles. The class of your hitch will decide the size of the pins on the receiver lock. A class I or a class II hitch will require a 1-1/4 inch receiver lock. A class III, class IV or class V hitch will require a 2 inch receiver lock.
Of course, you can always directly contact your tow vehicle’s manufacturer to confirm the appropriate size of a compatible trailer hitch lock. And to double-check to make sure the receiver lock you’re planning to buy will fit your hitch snugly, it’s recommended that you measure the overall width of the outside of the receiver on your tow vehicle at the hitch pin hole. Then, make sure the inside width of the receiver lock you want is at least as wide as the width measurement you just made.

5. How do I reinforce my trailer hitch lock to make my trailer harder to steal?

If a single hitch lock is not enough for your peace of mind, then you can look for the best trailer hitch lock that will allow you to use a padlock on top as an extra layer of security. If you use a couple lock for securing your trailer when it’s parked and stored in the off-season, you can also double up by adding a hitch pin lock to the existing coupler lock. 
Also, when your trailer is parked, some wheel stabilizers or wheel chock locks or clamps can keep the tires from moving and thus also helps in keeping your trailer from being stolen, since the thief will need to work harder to drive away with your trailer and it will look obvious that the trailer is being tampered with by someone other than its owner.

Also in RV Hitch & Tow, we’re providing thorough reviews and buying guides which help RV campers have peace of minds choosing the best fifth wheel hitches for short bed trucks, best weight distribution hitches, best removable fifth wheel hitches, best anti-rattle hitch devices, best electric tongue jacks, best tow dollies on the market today.

About Chris Coleman

Chris Coleman is an interesting travel blogger and outdoor photographer with a great sense of humor. He owns an RV Accessories shop in New York City so he has the knowledge necessary to provide thorough reviews and give advice on how to choose the right products for RV travel. He puts all that RV knowledge and experience to good use in his sharing posts. Besides product buying guides/reviews, Chris also writes informative articles, how-to articles and RV camping guides in his own interesting viewpoint. Chris’s blog is one of the most reliable information sources for RV campers no matter if you're an expert or a determined beginner.

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