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Best Trailer Hitch Pin Locks to Secure Your Trailer

The struggle of choosing the best trailer hitch pin lock is the reason for every trailer owner’s headache. Trailers are easy to steal and sell. Moreover, thieves are getting smarter nowadays and they’re finding out newer ways to hitch up a trailer within minutes. So focusing on your trailer’s security shouldn’t be delayed at all. In this article, we’ll discuss various facts about the top 5 strongest hitch pin locks in the market and with a brief guide before the end, we’ll try to ease your struggle of choosing the most suitable one for your trailer. We’ve spent hours and looked into different important aspects. So let’s have a look without further ado.

Master Lock 2866DAT Receivers Trailer Hitch Lock

Master Lock is a brand renowned for making quality locks. We’ll have a look at this 2866DAT model that brings both quality and versatility. The lock has been designed for multiple security purposes. It can well be implemented on vehicles, RVs and trailer hitch locks. It fits receivers of the sizes ½” and ⅝”. For covering class I/II with 3500 lbs load, the ½” pin can be rated. And the ⅝” will be good enough for 10000 lbs load of class III/IV. You can also adjust it from 9/16” to 2-¾” for a perfect fit. 2.75 inches of the total length of the receiver pin is usable.

The “push to lock” feature of this convenient lock comes with such a mechanism that enables you to remove the key by simply pushing the body of the lock on the pin. The design makes it durable enough with a weatherproof seal along with a water-resistant cap. They help with providing the hitch pin lock from dirt and moisture. It also has a cylinder with four-pin that prevents any lock picking. And the brass made keyway resists any chances of corrosion.

The swivel head of this lock is made of stainless steel that can rotate 360 degrees to offer you easier access. This is a patented feature the hitch pin lock boasts of. The hitch lock is a padlock styled lock that you can use for preventing theft instead of standard clip and pin.

Key Features

  • Patented 360-degree rotatable swivel head feature allows easy access.
  • The pin can be adjusted from 9/16” to 2-¾” for a precise fit
  • Simple and convenient “push-to-lock” allows removing the key only with a push


  • Comes with ½” and ⅝” pins
  • Class I-IV hitches support
  • Push-to-Lock mechanism
  • All weatherproof
  • Water-resistant cap
  • Four-pin cylinder


  • Comes with ½” and ⅝” pins

Cocoweb Chrome C-Lock Heavy Duty Hitch Pin Lock with Weather Guard Protection

This locking mechanism from Cocoweb is quite new in the market. But despite arriving so late, it has brought some unique and quality features that might not be found on any other hitch pin lock. This product assures you of total security of your trailer. Versatility is one of its most noticeable characteristics which sometimes makes the lock the most suitable solution in industrial settings.

All the standard class I-IV hitches having a maximum hitch width of 2.75” is supported by this hitch lock. The steel made solid lock is 6” long. One of its ends is detachable with the given keys. The lock offers pin with industry standard ½” or ⅝” diameter. It easily fits any of the standard hitch receivers. You can use this hitch lock to affix and lock towed items to any hitch receiver as well.

The installation of this lock is one of the easiest tasks you’ll ever encounter. It doesn’t require you any drilling for using this lock. Just by sliding the pin you can lock it.

This heavy-duty product is able to resist tough weather conditions. A cap that it comes with keeps its keyhole safe and secure from dust and moisture. The advanced technology keeps you free of worries regarding any chances of corrosion or rust. The product is durable enough to serve you a lifetime.

Key Features

  • The versatile hitch pin lock fits most of the industry standard ⅝ inches hitch receivers
  • Comes with a decent weatherproof cap
  • Sliding in the pin locks it easily
  • Barbell locking mechanisms


  • Resistant to all weather conditions
  • Fits almost all hitch receivers
  • Easy to install and remove


  • Verifying the dimensions of hitches is recommended.

Connor Trailer Hitch Lock - 1615190 Receiver Lock - Black Nickel Hitch Pin for Class III-V Hitches

This version of receiver lock from Connor Trailer is made of durable solid steel. It has a heavy-duty black nickel finished look. For class III-V hitches, it comes with a pin of ⅝”. This is a hitch pin that fits most of the common hitch settings which include class III/IV 2” by 2” receivers as well as class V 2.5” by 2.5” receivers. 3.5 inches of the total length of the receiver pin is usable. It comes along with 6 o-rings. They offer a more accurate fit for the hitch receiver. The rings are easily removable. It means the length of the hitch pin can be adjusted based on the hitch.

The lock also offers a “push to lock” feature. With this, you’ll be able to know if your hitch pin is locked fully or not. An innovative mechanism of Connor Trailer is used on this lock. It’s designed to keep you free of frustration. It automatically locks into the hitch receiver and allows you to take out the key after you unlock.

An all-weather friendly rubber cap is there to provide you with additional security against grime or corrosion in adverse weather conditions.

Key Features

  • Automatically releasable lock enable quick and frustration-free installation
  • Push the pin and hear the “click sound” for simple locking. Get secured locking every time
  • Fits the most common hitches of all the class III/IV 2-inch by 2-inch and class V 2-½-inch by 2-½-inch receivers.


  • Made of solid steel
  • Fine black nickel finish
  • Compatible with class III-V hitches
  • Convenient Push-to-lock feature
  • Weather resistant cap


  • Few customers reported on stuck locks.

Curt Manufacturing 23518 Towing Wiring

Like a clip and a pin, this Curt hitch lock comes with a unique design. It can be inserted into the latch hole in the receiver tube’s side. It holds ball mounts or hitch-mounted accessories in place. This lock allows you to lock the ball mount inside the trailer hitch. It deters theft and prevents anyone detaching the trailer from the ball mount. This barbell designed Curt hitch lock has a pin with a diameter of ⅝-inch and it fits any 2-inch receiver.

However, 2.85-inch of the pin is usable which means it won’t work with a dual-walled receiver tube.

The barbell design has a pin that boasts two end caps with a round mechanism for locking. You can operate with keys and activate with simple turns. A watertight cap keeps the dust away from the keyhole and prevents unwanted rust and corrosion.

This Curt hitch pin lock is also able to secure your ATV, campers, boats or toys beside trailers. So you can consider this option if you need a lock for securing multiple items.

Key Features

  • Sleek black finish
  • Easily activated by a ¼-turn
  • ⅝-inch in diameter, the pin fits 2-inch by 2-inch receivers


  • Rust and corrosion free
  • Offers 2 keys
  • Built with durable materials


  • Doesn’t work on dual-walled receivers

Motormic Trailer Hitch Lock Pin Set

Motormic has brought in this amazing all-in-one set to ease any frustration of choosing a suitable locking solution. It’s perfect for the 1-¼”, 2” trailer hitches and 2-½-inch trailer receiver locks. The set of 2 trailer hitch lock pin includes an extra long hitch lock of ½-inch and ⅝-inch, 2 keys and, a safety clip. A weatherproof rubber cap is provided to keep it free of dust and grime. The locking pin set also comes with 5 O-rings made of silicone to guarantee perfect fittings. The long hitch pins get the job done for all the class I-V receivers.

The locking mechanism is easier to install with the innovative Push-to-lock feature. And the unlocking is evenly easy with the only ¼ turn of the key.

This sturdy Motormic lock is made of solid hardened steel. The powder coated black finish gives it a smooth satisfying look. Moreover, it keeps it free of rust and corrosion. The lock is durable enough to stave off extreme weather conditions. With plenty of positive customer reviews, it proves to be a dependable towing safety solution.

Key Features

  • With a usable length of 3-¾”, the lock pin can be adjusted precisely by 5 silicone made O-rings.
  • The simple push-to-lock feature makes the locking and unlocking easier.
  • A hole and clip are added to the anti-rattle pin for additional safety.


  • Made of hardened steel
  • Convenient push-to-lock feature
  • Waterproof rubber cap
  • Free of rust and corrosion
  • Compatible with I-V receiver pins
  • Easy locking and unlocking
  • Comes with a couple of keys


  • Few complaints about the rattling

Things to Consider Before You Buy A Hitch Pin Lock

With so many locking products in the market, buying the best trailer hitch pin lock may prove to be a hefty job. And naturally, trailer owners always remain worried with the proper safety of their trailers.

So, if you own a trailer and you’re struggling to find the most suitable theft deterrent for it, read the rest of this article. Here I have tried to put the things together briefly so that you find it easier to pick the right one for your trailer. Hope this guide will make it easy for you to understand the little yet important facts.

  • Determining the class of your hitch is the first and foremost thing before buying a pin lock. There are classes I, II, III, IV, and V. You must keep in mind that not all of the hitch locks support each of the classes. Trailer locks generally come with either ½-inch or ⅝-inch pins. Check if the lock fits your hitch before any purchase. In general, ½” pins are for Class II hitches and ⅝” pins are used by Classes III-V.
  • The material is surely an important aspect of a lock you need to check. You’ll want your lock to be made of durable materials to provide sufficient protection for your trailer. It’s ideal to buy locks made of high-quality steel or solid hardened steel. Locks made of carbon alloys or aluminum are lightweight and easier to handle but they are also easier to break or damage, risking your trailer at the same time.
  • Check if the lock uses a matchless key. Some of the manufacturers produce keys that unlock all of their product. You need to avoid those locks since they can be undone by anyone having a key of a similar lock.
  • Buy a lock that is durable enough to withstand extreme weather conditions. You’re never going to place your trailer indoors. It’ll remain outside for most of the time. And it’ll face different adverse weather conditions. So choose a lock that never wears off in those situations.

Final Word

Now that you know the types of trailer coupler locks available in the market, you can figure out the best trailer hitch pin lock yourself. There are great choices before you from which you can choose the most suitable one for your trailer. Make your investment in a quality lock that never compromises with the security of your trailer. I hope choosing one from the above list will get the job done for you. Just follow our guide and make a choice. But again, do take necessary precautionary measures as well and do not just lock and forget. The proper security of your trailer depends on how concerned you really are.

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