Best Trailer Locks – Uncuttable and Unbreakable

best trailer locks LockPickingLawyer trailer locks

Trailer hitch locks are undoubtedly a very very important lock to have. Apart from locks on your house or car they are what will protect some of the most expensive things that you will own

This is why we think it’s very important to get the best one for your needs and that it is secure enough for what you want it to do. Think of a trailer hitch lock like insurance, you pay more for this so that you don’t lose the boat or caravan worth, $10k, $50k or more. 

There are many types of trailer coupler locks but most of them work by inserting something into the ball socket and having metal around the top and sides of the hitch to stop it from being removed. This is fine but there are many ways of achieving this, some more secure than others.


LockPickingLawyer Trailer Locks

The LockPickingLawyer has a number of videos where he assesses the security of various trailer locks, some he praises and says that he would use himself.

Others are more a display of the numerous failers that make them terrible products that should not be sold.

We have found the ones that he recommends and listed them here for you to see.

Best Trailer Hitch Locks

Here is the list of what we have found to be the best trailer locks on the market.


Altor SAF 2516 Trailer lock

ALTOR SAF 3516 trailer hitch lock

This Trailer lock is a beast Altor is known for going big when it comes to locks and this trailer lock from them is nothing different.

Made of welded high carbon steel you can easily see why this trailer lock is one of the best out there. It has huge fins that would take even the best grinder several minutes to get through. This lock is not one that will give up to even the most dedicated of attacks.

“Good enough for almost all purposes, as for its physical prowess and resistance to brute force, simply put it’s one of the best you can buy”

LockPickingLawyer

It also has a lock core with quite a good level of security. The disc-detainer core is the industry standard for high-security locks and it goes perfectly with this lock.

See the LockPickingLawyer review and pick this trailer lock in his video number 1339.

Specifications

Weight22lbs / 10kgs
Lock Core Pick resistant disc detainer
MaterialHardened cast steel
Fit2-5/16″ ball

Ratings

lockjudge best locks 5 stars lockpickinglawyer best


Proven Industries Trailer Coupler Lock #2516

Proven-Industries-trailer-coupler-Lock-2516

The Proven industries lock here is a great option also for high-end protection. The other great thing about this trailer ball lock is that it has a changeable puck lock on the front. So if you find that you want to upgrade the lock or it stops working for some reason then it’s easy enough to change it over for another one.

With its huge body, this lock will put up to a lot of punishment from any kind of attack including grinders.

While it is very unlikely that the lock will be picked seeing as it’s one that requires quite a bit of skill to pick. It could still be open to drilling attack however this is very unlikely and is a highly skilled attack.

“One of the better trailer coupler locks currently in production”

LockPickingLawyer

See the LockPickingLawyer pick this one in his video number 901.

Specifications

Weight10lbs / 4.5kgs
Lock Core Changeable puck lock with pick resistant lock core
MaterialWelded plate steel
Fit2-5/16″ ball coupler

Ratings

lockjudge best locks 5 stars lockpickinglawyer best


AMPLock BRP-2 Trailer Lock

AMPLOCK-U-BRP2-Trailer-Coupler-Lock

Going with a similar tactic to the other trailer locks above this one relies on pure size to make it impractical to attack with any kind of normal tools like a grinder or drill.

The body is made of a single piece of ductile cast iron. which means that it is more corrosion resistant, and overall stronger than normal cast iron. Being more ductile means that it will better resist basic attacks from a hammer to try and crack it. You could hit this all day and it will be no worse off.

The Ball and lock body inside is made of a large piece of stainless steel giving the body of the lock an extremely good resistance to drilling and cutting attacks. also being stainless steel it will last extremely well in any environment. If you were looking for one to survive in a harsh environment like at the beach or somewhere similar then this is the one you should go with.

The lock core is a disc-detainer meaning that it will be quite a challenge to pick for almost any thief, and on top of that, the core is on the bottom of the lock so you would have to lay on the ground to get a good look at it. this also means that drilling would be extremely difficult.

“One of the beefiest trailer locks I’ve ever seen”

LockPickingLawyer

Specifications

Weight10lbs / 4.5kgs
Lock Core Pick resistant disc detainer
MaterialHardened cast steel
Fit2 5/16” coupler with a flat lip

Ratings

lockjudge best locks 4 stars lockpickinglawyer best

See the LockPickingLawyer pick this one in his video number 1227.


Maypole Stronghold SH5415 Hitchlock

Maypole Stronghold SH5415 Hitchlock

Made to completely cover the trailer hitch and bolts attaching it to the trailer this is a great option. It is also specially built to work with cast trailer hitches, so if you are one that has a cast hitch then this will be the one for you.

Being made completely of plate steel this lock would take quite some time to cut through even with an angle grinder. The locking pin is also made of thick steel and rotates to resist cutting and breaking.

One unique feature of this lock is that it can be installed while the trailer is attached to the vehicle. This feature is one that is impossible with most other locks as they take the place of the ball in the hitch. If you are looking for something to keep your trailer securely attached to your vehicle then this is the option for you. NOTE: The lock should not be attached while towing.

Rate by Sold Secure to their Gold standard for trailers this trailer hitch lock really is one that will perform well for you. With its compatibility for use in a number of situations including while the trailer is hitched this is a great option for many people including horse floats where they will be left unattended on the trailer for a long period of time.

Specifications

Weight10lbs / 4.5kgs
Lock Core Pick resistant disc detainer
MaterialPlate Steel Casing
Fit

Ratings

lockjudge best locks 4 stars sold secure gold

See the LockPickingLawyer pick this one in his video number 1227.


Finding the Best Trailer Hitch Lock

There are some very important things to look for when choosing a trailer lock. We have pointed out the most important things to keep an eye out for below. Some of these we have already looked at for you, for example, all the locks we suggest here have great build quality and are high security so you just need to check that they will fit your trailer and you are good to go!


Size

To find the best trailer coupling lock, firstly you will need to know the ball size of your coupler so that you can get the right one.


Compatability

The third is that it’s secure and will suit your needs, like fitting the trailer and not causing other issues. Thankfully this isn’t normally a problem.

TIP: When looking for the best trailer lock, test for fit on the trailer first!

Either take your trailer to the store or make sure that the product can be returned if it doesn’t fit properly. There are many different hitches out there and the fit of a lock on a tailor hitch is extremely important for it to be secure. 

Don’t trust that locks and hitches from the same manufacturer are safe either, the LockPickingLawyer proved this is his video number 1175 where a trailer lock and hitch made by the same company that should have been compatible were not at all.


Material and Build Quality

Many cheaper trailer locks are made with substandard materials and locking mechanisms that will make it very easy for a thief to remove them.

Material of the body, watch out for lightweight castings as they are often cast zinc and this can easily be broken, cut or melted. You are better off going for a folded steel or welded steel body as this will put up the most resistance to punishment. the drawback is that they tend to be a lot heavier. The Altor SAF 2516 is a good example of a strong lock made with plate steel.

Next, the Locking Mechanism is extremely important. You may be tempted to get a lock with a ratcheting locking mechanism as they will “fit any hitch” and they are “easy to mount” but beware. These types of locks can generally be defeated very easily with a shim that pushes the locking lug aside. This means that they can be opened in seconds with very little skill or technique. A child could do it if you showed them how.


Weather Resistance

Trailers are something that usually spends almost their entire life outside and if you are looking for the best tailer lock for your trailer then it’s most likely that this is the case for you too.

This is why getting one that will last out in the elements for a long time is quite important. Whether you are in the snow, next to the beach or just in the suburbs of a city you want to be able to remove the hitch lock from your caravan or boat when you want to use it. This is why having a good quality lock that will not corrode and have to be cut off is so important.

Materials like, stainless steel, as well as painted high carbon steel and cast iron, are good for corrosion resistance. Luckily all the locks we have found for you here are some of the best for these qualities.

Cost of your Trailer Lock

You will need to know roughly how much you want to spend on the lock. Is it going to be protecting a $1000 trailer or a $300 000 boat? No point in spending $500 on a lock for a trailer only worth 2 times that. So the best trailer lock is one that secures your trailer for the right price.

Summary 

A good trailer lock is a very valuable thing to have and is like insurance. You may even get a discount on your insurance if you use a high-quality trailer lock to keep it secure.

Unfortunately, there are many trailer locks out there that seem at first glance to be good quality but they have some serious security flaws like, ratcheting locking pins that can easily be shimmed open, or cast zinc housings that make it very easy for the housing to be broken, cut or melted.

We hope you found the best trailer lock for your trailer, the LockPickingLawyer recommended locks are some of the best on the market and will secure any trailer that you would want to secure.

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