Trailer Tongue Locks

Hannah Wright
15 min readJun 18, 2024

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Welcome to our roundup of the top-rated Trailer Tongue Locks on the market! If you’re looking for a reliable and secure way to lock your trailer in place, you’ve come to the right place. We’ve compiled a list of the best products out there, so sit back, relax, and let us help you find the perfect Trailer Tongue Lock for your needs.

The Top 9 Best Trailer Tongue Locks

  1. HAUL-MASTER All-Purpose Coupler Security Lock — Secure your trailer with the HAUL-MASTER Universal Coupler Receiver Lock, a durable aircraft aluminum lock that prevents theft and rust for easy peace of mind.
  2. Maxxhaul Hitch Pin Lock Set for Trailer Hitch Security — Protect your trailer hitch with Maxxhaul’s 50151 Trailer Hitch Lock Pin Set, featuring easy-to-use push lock keys, rust and corrosion resistant materials, and added security features to prevent theft and reduce noise.
  3. Trimax Swing Away Trailer Lock: Secure Hitch for Class III, IV, and V Hitches — The Trimax Swing Away Trailer Tongue Lock — TH6 provides superior security and durability for your trailer or boat, making it the strongest locking pin on the market that won’t pop open.
  4. Durable Universal Trailer Hitch Lock for 1–7 Couplers — Secure your trailer with the Turnart Trailer Hitch Lock, featuring a universal fit, highly visible yellow color, and a premium lock for ultimate peace of mind.
  5. AMPLOCK U-TLS2 Heavy-Duty Coupler Lock for Trailer, Boat or RV Security — Protect your valuable trailer, boat or RV with the durable and reliable AMPLock U-TLS2 coupler lock, featuring a push and lock system, stainless steel construction, and nearly 1 million possible key codes to deter theft.
  6. METOWARE Heavy-Duty Keyed Alike Trailer Coupler Lock — Secure your trailer, boat, or RV with this heavy-duty steel trailer coupler lock featuring 8 spare keys and a compact 1/4" diameter design, all without compromising anti-theft protection and easy installation.
  7. HAUL-MASTER 5/8 in. Trailer Coupler Lock and Pin Set — Secure your trailer hitch with the HAUL-MASTER 5/8 in. Trailer Coupler Pin Lock, featuring heavy-duty all steel components and a locking mechanism that deters theft, making it a top choice for anyone looking to protect their receiver-style hitch.
  8. TowSmart ProClass: Heavy Duty Tongue Lock for Maximum Security — Secure your valuable assets with TowSmart’s Heavy-Duty Coupler Lock, a heavy-gauge metal lock designed to deter theft and withstand harsh weather conditions.
  9. Proven Lock Model 2178 for 2 Couplers — Proven Industries’ Model 2178 Trailer Tongue Lock is a bolt-cutter proof, 1/4' all-steel construction lock with a black powder coat finish, providing excellent security for a variety of couplers while fitting the most commonly used styles.

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Reviews

HAUL-MASTER All-Purpose Coupler Security Lock

When I finally decided to get a hitch receiver lock for my trailer, I was looking for one that would be easy to install and very secure. The HAUL-MASTER Universal Coupler Receiver Lock seemed like a great option. What caught my attention was the heavy-duty aircraft aluminum it’s made of, which is supposed to prevent rust. I figured if this lock could withstand rust and theft, it could probably handle anything else that came its way.

One thing that really stood out to me about this lock is its versatility. I often store my trailer outside and have it unattended for long periods of time, but I always worry about my trailer being stolen or vandalized. This lock had multiple configurations, so I could fit it on just about any hitch. It seemed like a secure and convenient solution.

After installing the lock, I found it was very easy to use and secure. I did notice that it was a bit lighter than I expected, but it still felt very solid and sturdy. It’s not perfect, and I can imagine that a determined thief could still break it, but it definitely gave me peace of mind knowing that my trailer was a little more secure.

Overall, I think the HAUL-MASTER Universal Coupler Receiver Lock is a great option for anyone looking for a secure and easy-to-install receiver lock for their trailer. It’s made from high-quality materials, has multiple configurations, and is very affordable. However, it’s not bulletproof — but no lock is. I’d definitely recommend this lock to anyone who wants to add an extra layer of security to their trailer.

Maxxhaul Hitch Pin Lock Set for Trailer Hitch Security

Experience the ultimate security for your trailer hitch with the MaxxHaul’s Hitch Lock. Crafted with hardened steel and an electro-static paint finish, this lock offers top-notch corrosion and rust protection, ensuring durability and long-lasting performance. The locking system is both theft and tamper-resistant, giving you peace of mind while you’re on the road.

Say goodbye to annoying rattling noises with the rubber O-rings that securely hold your hitch pin in place. These locking pins are designed to fit Class III, IV, and V hitches, providing a tight and secure fit for various trailer sizes. In addition, the lock features a convenient push-lock mechanism, making it easy to secure and remove from your hitch.

For added safety, each hitch lock pin comes with a hole that accepts a safety clip, providing an extra layer of protection in case the locking head falls out, is lost, or damaged. The weather-resistant rubber cap ensures your keyhole stays protected from water, grime, and other external elements.

Included in the kit, you’ll find a lock head, two pins, a safety clip, two keys, and five O-rings for both pins. This comprehensive package will give you everything you need to safeguard your trailer hitch against theft and ensure a smooth and quiet towing experience.

Trimax Swing Away Trailer Lock: Secure Hitch for Class III, IV, and V Hitches

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The Swing Away Trailer Tongue Lock, in particular, the TH6, has been a game changer for me when it comes to towing trailers or boats. The swing-away design makes hitting the hitch so much easier, and the durable construction ensures that it can withstand the harsh elements. The 5/8 inches pin fits class III, IV, and V hitches, providing a secure connection regardless of hitch size. What stood out to me during my time using this lock was the patented design. It comes with an O-ring and water tight cap that seals out dirt and corrosion.

When I first tried the TH6, I noticed just how robust it felt. The large dual lock lugs prevent false locking, and the lock can’t pop open even during rough rides. On top of that, the rugged key is built to last and won’t bend or break easily. So far, I’ve been absolutely thrilled with the Swing Away Trailer Tongue Lock and its performance.

Durable Universal Trailer Hitch Lock for 1–7 Couplers

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The Turnart Trailer Lock is a versatile and robust solution for trailer security. Designed to fit couplers ranging from 1–7/8" to 2–5/16", this lock boasts an adjustable ratchet design that caters to various trailer sizes. The lock’s bright yellow color is a clever deterrent, providing visible protection for your valuable assets. However, it may not be the best choice for those seeking a discreet look.

Crafted from heavy-duty steel, the lock is built to withstand rigorous use and resist common theft techniques such as picking, prying, and drill-outs. Despite its sturdy construction, it’s important to note that it may weigh down the tongue of your trailer, especially if it’s not specifically designed for heavy loads. Overall, the Turnart Trailer Lock offers a practical and secure option for protecting your trailer hitch, but potential buyers should consider these factors before making a purchase.

AMPLOCK U-TLS2 Heavy-Duty Coupler Lock for Trailer, Boat or RV Security

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The AMPLock U-TLS2 is a top-notch trailer coupler lock designed to keep your RV, boat trailer, or caravan secure against potential theft. Its innovative push and lock system and cylinder location make it difficult for thieves to access, while its sturdy construction boasts stainless steel and ducted cast iron for better shock absorption. This lock works exclusively with 2" couplers featuring a flat lip, making it fit seamlessly.

If you’re looking for the best coupler lock on the market, the AMPLOCK lock is your go-to option, offering excellent protection without sacrificing durability and reliability.

METOWARE Heavy-Duty Keyed Alike Trailer Coupler Lock

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The METOWARE Keyed Alike Trailer Coupler Lock is a versatile and practical solution for securing your trailer, boat, RV, or car’s coupler. Made of high-quality, rust-proof heavy-duty steel, this lock is both durable and reliable for long-term use. It measures 1/4 inch in diameter and 3/4 inch in span, making it compact and easy to carry anywhere. This mini lock comes with 8x keys, ensuring you have a spare on hand when needed.

Featuring a screw-type locking action, the METOWARE lock is simple to use and can be easily installed, allowing you to secure your trailer and hit the road in no time. The unique design of this lock also ensures maximum traction capacity, optimal appearance, and a secure fit for most trailers, boats, RVs, and cars. The lock’s zinc alloy tubular lock core and solid round key work together to improve security and deter theft.

Overall, the METOWARE Keyed Alike Trailer Coupler Lock is an excellent choice for anyone looking for a reliable and compact trailer tongue lock to safeguard their precious cargo and provide peace of mind while on the road.

HAUL-MASTER 5/8 in. Trailer Coupler Lock and Pin Set

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The HAUL-MASTER 5/8 in. Trailer Coupler Pin Lock is a reliable and sturdy security tool that prevents theft of receiver-style hitches. With its heavy-duty locking mechanism and all-steel components, it makes a perfect addition to anyone’s trailer setup. The keyless design ensures that only those with the right keys can unlock it, and the diamond knurled grip is comfortable to hold.

One aspect that stood out to me was its durability. I’ve been using it for a few months now, and it holds up well even after exposure to harsh weather conditions. The lock is easy to operate, and it secures my trailer hitch firmly in place.

However, there is a slight drawback: the lock sometimes jams, making it a bit challenging to unlock. I had to apply some WD-40 to loosen it up, but it worked like a charm afterward. All in all, this HAUL-MASTER Trailer Coupler Pin Lock is a decent choice for securing your trailer hitch on the go.

TowSmart ProClass: Heavy Duty Tongue Lock for Maximum Security

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One sunny Saturday, I found myself taking my trusty camper out for a much-needed adventure. As I was getting everything hitched up, I couldn’t help but notice the familiar pang of worry that always comes with leaving my valuables unattended. But this time, I had a new tool at my disposal: the TowSmart ProClass Heavy-Duty Coupler Lock.

With its sturdy 9/16 in. heavy-gauge locking bar and fine-tooth adjustment, the TowSmart lock quickly became my go-to companion on the road. I loved how it fit my trailer perfectly, with multiple locking positions available to ensure a tight and secure fit. The round key locking cylinder was reassuringly robust, providing that extra layer of security.

One of the standout features for me was the ease of use. The lock was simple to slide into place, and the heavy-duty shackle made it a breeze to secure everything. The included keys were a nice addition, ensuring I always had a backup when needed. And the bright finish on the lock was a great deterrent to any would-be thieves.

As much as I loved this lock, there were a couple of drawbacks. While it was effective in preventing theft, I couldn’t help but notice the weight of it in my hands. It was a bit of a workout just to lock and unlock it! Additionally, the lock seemed to be a bit more susceptible to rust in damp conditions, although it didn’t impact its performance.

All in all, the TowSmart ProClass Heavy-Duty Coupler Lock has become an integral part of my camping adventures. It’s a heavy-duty lock that provides peace of mind, ensuring my gear remains safely behind me as I explore the great outdoors.

Proven Lock Model 2178 for 2 Couplers

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This heavy-duty Proven Industries coupler lock is designed to secure your safety chains and provide a safe trailer coupler. With features like a 1/4' all steel construction and a black powder coat finish for ease of installation, it’s an excellent choice for trailer owners seeking to protect their assets.

The Model 2178 fits the most popular trailer coupler types, including “A-frame” welded-on and bolt-on styles, ensuring maximum compatibility and security. It’s constructed in the USA, reflecting its commitment to quality and craftsmanship. However, ensure that you check the accompanying trailer coupler index photographs to ensure proper match before purchasing — it may not fit all trailer couplers.

This style of lock enables the securement of most standard S-hook safety chains, providing an added layer of protection. Customers appreciate its solid steel construction and standby exchange service if needed. For those with heavy safety chains or additional lock needs, the Proven Locks brand provides additional locking accessories.

However, some users have expressed concerns over the locking mechanism’s pot metal construction and the lack of a spring-loaded mechanism. They also point out that the lock’s design allows for a large pry tool to potentially render it ineffective.

Despite these minor concerns, overall, the Proven Industries coupler lock has impressed customers for its heavy-duty construction, ease of use, and commitment to providing customized solutions based on specific trailer models. It’s worth considering if you want to secure your trailer coupler effectively.

Buyer’s Guide

A trailer tongue lock is a simple yet crucial accessory for anyone who owns a trailer. It helps secure your trailer to your towing vehicle by providing an extra layer of protection against theft and accidental disconnections. Here, we’ll discuss the important features, considerations, and general advice to help you choose the right trailer tongue lock for your needs.

Important Features

When selecting a trailer tongue lock, it’s essential to consider the following features:

  1. Security: The lock should be robust and difficult to break or tamper with. Look for locks that feature multiple locking points and high-security locks. 2. Compatibility: Ensure the lock is compatible with the coupler and the towing vehicle. Most locks are universal, but some might only fit specific models. 3. Convenience: Ideally, the lock should be easy to use and quick to attach/detach. Some locks come with a push-button feature that allows for one-handed operation. 4. Durability: The lock should be made from weather-resistant and corrosion-resistant materials to withstand the harsh conditions of the outdoors.

Considerations

Before purchasing a trailer tongue lock, take these considerations into account:

  1. Your trailer’s weight and type: Different locks have different weight capacities, so it’s crucial to choose one that can handle the weight of your trailer. Additionally, the design of your trailer might affect the compatibility of some locks. 2. Your towing vehicle’s hitch: The lock’s compatibility with your towing vehicle’s hitch is essential. Some locks might be designed to work with a specific type of hitch, so it’s vital to check the compatibility before making a purchase.

Advice

To make the most out of your trailer tongue lock, follow these pieces of advice:

  1. Always lock your trailer when you’re not using it, even if it’s just for a short period. Thieves can quickly disconnect an unsecured trailer, leading to potential damage and loss of its contents. 2. Keep an eye on your lock’s condition. Regularly inspect the lock to ensure it’s working correctly and hasn’t been tampered with. 3. Store your lock securely when not in use. Thieves might target the trailer tongue lock itself, so make sure it’s stored in a secure location away from public view.

By considering the important features, taking into account the necessary considerations, and following the general advice provided, you’ll be well-equipped to choose the right trailer tongue lock for your needs. Remember, securing your trailer is crucial to protecting your investment and the safety of those around you.

FAQ

What is a Trailer Coupling Lock?

A coupling lock is an essential device that assists you in securing your trailer to your vehicle, preventing it from detachment or theft. It generally attaches to the trailer hitch of your towing vehicle and engages with a locking mechanism on the trailer, providing a convenient and secure means of transporting your trailer.

Coupling locks come in various types, such as locking or non-locking options, and diverse sizes to cater to different trailer hitch types. They are an indispensable accessory for any trailer owner, as they offer peace of mind when your trailer is being transported or stored away from your residence.

What are the advantages of using a Trailer Coupling Lock?

Using a coupling lock offers numerous benefits, including enhanced security, improved safety, and convenience. By locking your trailer to your towing vehicle, you can deter theft and prevent the trailer from getting detached during transportation. This is especially crucial when transporting valuable or heavy items that could cause damages or injuries if they were to fall off during transit.

Aside from security, coupling locks also provide safety. They help prevent your trailer from being stolen or misplaced, which can cause accidents or damage to other vehicles on the road. Employing a coupling lock can also save you time and money, as you won’t have to worry about locating your trailer after it has been detached from your vehicle. In summary, a coupling lock is a smart investment for any trailer owner, offering peace of mind and a convenient way to secure your trailer during transportation and storage.

How do I select the appropriate Trailer Coupling Lock for my vehicle?

When choosing a coupling lock, consider the following factors to ensure that you choose the right size and type for your particular trailer hitch:

  1. The size of your trailer hitch. 2. The load capacity of your trailer. 3. The length of your tongue. 4. Your trailer coupling lock preferences, such as locking or non-locking options.

It’s also essential to measure the distance between the hitch ball and the coupler on your trailer to ensure that the locking mechanism will operate correctly. Refer to the product specifications, as some locking mechanisms have a minimum distance requirement for proper operation. By considering these factors and accurately measuring your trailer hitch, you can choose a coupling lock that will meet your specific needs and provide the security and convenience you require.

Are Trailer Coupling Locks easy to install?

Yes, most coupling locks are engineered to be user-friendly and easy to install, even for individuals with minimal mechanical knowledge. They typically come with clear instructions and are designed with the convenience of the user in mind. Some locking mechanisms allow you to install and remove the lock with just a few simple steps, such as squeezing the locking pin or flipping a lever. In other cases, you may need to refer to the installation manual provided with the product, which may outline specific steps to secure the locking mechanism onto your trailer hitch.

In general, coupling locks are uncomplicated to install, and most people can complete the process within a few minutes. However, if you are unsure about installing the lock yourself, it’s a good idea to consult with a professional or a qualified mechanic to ensure that it’s installed correctly and securely.

What are some tips for maintaining my Trailer Coupling Lock?

To ensure that your coupling lock functions effectively and lasts for years, consider the following maintenance tips:

  1. Regularly inspect the lock for signs of wear and tear, such as rust or corrosion. If you notice any issues, clean and lubricate the lock to prevent further damage. 2. Keep the lock clear of debris, such as dust, dirt, or mud, as this can hinder the locking mechanism and make it difficult to secure your trailer. 3. Store your coupling lock in a dry, secure location when not in use, to prevent damage from environmental factors and to keep it away from potential thieves.

By adhering to these maintenance guidelines, you can help expand the life of your coupling lock and ensure that it continues to work efficiently, providing you with the security and convenience you need when transporting your trailer. Don’t forget to also conduct regular inspections on your trailer hitch, coupler, and other trailer components to ensure that they are in good condition and functioning properly.

What are some well-known brands of Trailer Coupling Locks?

There are numerous brands of coupling locks available in the market, each offering distinct features and benefits. Some popular brands include:

  1. Bolt Lok. 2. Reese. 3. HitchMaster. 4. Bulldog. 5. The Stowaway. 6. Blue Ox. 7. Andersen Hitches. 8. Clevis Locks. 9. Curt Trailer Hitches. 10. Husky. These are just a few examples, and there are many more brands offering high-quality coupling locks to suit various trailer hitch sizes and requirements.

When selecting a coupling lock, consider factors such as the locking mechanism, size, load capacity, compatibility with your trailer hitch, and your specific trailer coupling lock preferences. Conducting research and comparing the features of different brands can help you find the perfect coupling lock that meets your needs and budget.

As an Amazon Associate, I earn through qualified purchases at no cost to you!

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