Best Trailer Hitch Locks: Deter Thieves and Protect Your Possessions

These products are effective and essential when you leave your trailer unattended.

Best Overall

Master Lock Universal Size Trailer Locks

Best Value

Cocoweb Chrome C-Lock Heavy Duty Locking Hitch Pin

Honorable Mention

Reese Towpower Universal Coupler Lock

Share

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›

You’re baiting a thief if you leave an unlocked trailer unattended. It doesn’t take much effort for a person to hook the trailer up to his vehicle and drive off with your equipment. Fortunately, a trailer hitch lock does a great job of preventing this from occurring. These devices make it much more challenging for a thief to steal your stuff. Many hitch locks are designed in bright colors that are visual deterrents and essentially a red flag to anyone who comes across your trailer with the intention of taking it. Instead of worrying about someone driving away with your trailer and its contents, get some peace of mind by using one of the following trailer hitch locks.

Summary List 

Best Overall: Master Lock Universal Size Trailer Locks

Best Value: Cocoweb Chrome C-Lock Heavy Duty Locking Hitch Pin

Best Heavy Duty: Reese Towpower Universal Coupler Lock

Best Universal Fit: Trimax UMAX100 Premium Universal ‘Solid Hardened Steel’ Trailer Lock

Most User Friendly: Master Lock 1/2 in. and 5/8 in. Swivel Head Receiver Lock

Honorable Mention: Best American Made: Proven Industries Model 2516 Trailer Lock

Also Consider: CURT Black Trailer Hitch Lock

Our Methodology

We took several factors into consideration when compiling our list of the best trailer hitch locks. First, we made sure to include products from reputable companies known for producing high-quality products. This includes manufacturers such as Master Lock, which has been making padlocks and security products for over a century. We also included different types of hitch locks, so there are different options to suit different needs. Our list includes products in a range of prices to fit a range of budgets. We also spent a good amount of time consulting user feedback to see how these devices perform in real-world conditions so we could determine which ones performed the best in all types of weather and conditions. More information about our methodology can be found on The Drive’s Gear About page.

Best Trailer Hitch Lock Reviews & Recommendations

Best Overall

Master Lock Universal Size Trailer Locks

Best Value

Cocoweb Chrome C-Lock Heavy Duty Locking Hitch Pin

Best Heavy Duty

Reese Towpower Universal Coupler Lock

Best Universal Fit

Trimax UMAX100 Premium Universal 'Solid Hardened Steel' Trailer Lock

Most User Friendly

Master Lock 1/2 in. and 5/8 in. Swivel Head Receiver Lock

Honorable Mention

Proven Industries Model 2516 Trailer Lock

Most Protective

CURT Black Trailer Hitch Lock

Our Verdict

Our pick for the best overall trailer hitch lock is the Master Lock Universal Size Trailer Lock because it’s designed to fit most types of hitch couplers, and its red color makes it stand out to deter thieves. For a more budget-friendly option, consider the Cocoweb Chrome C-Lock Heavy Duty Locking Hitch Pin.

Consider Secondhand

When we start shopping for tools and products, we never overlook the secondhand market. In fact, it’s usually the first place I look. Whether you’re scrolling through Amazon’s Renewed section, eBay for car parts or tools, or flipping through the pages of Facebook Marketplace and Craigslist, you have hundreds of thousands of used tools, parts, and gear ready to be shipped to your doorstep. Refurbished to like-new status, they’ll be willing to give you many more years of faithful service all while saving you money. 

If those options don’t have what you need, your local salvage yard is great for car parts, while swap meets are a great resource you should tap. Just Google either and head on down.  

Secondhand Tips

To make your secondhand search easier, here are two tips for finding the best deals and making sure your new-to-you stuff wasn’t destroyed by the previous owner. 

  • If possible, inspect the lock to make sure it’s in good working condition and that the elements lock and unlock smoothly. 
  • Avoid trailer hitch locks that are rusted because they may not work properly.

Things to Consider Before Buying a Trailer Hitch Lock

Key Features

Materials

Check out the type of material used on the lock. The majority are developed with a strong metal while others are reinforced with a tough steel construction. Either will ensure anyone looking to steal your trailer has a much more difficult time doing so. A strongly built lock will resist being broken.

Fit

While not all hitches are the same size, the best trailer hitch lock should be able to fit the majority of modern hitches. To make sure a lock will fit your specific hitch, double check with the manufacturer’s guide to see the exact specifications of the hitch.

Visibility

One of the best ways to help prevent the theft of your trailer, boat, or RV is to make sure you have a visible lock on the hitch. A good way to deter thieves is to get a bright color lock or a large one that is easily spotted from a distance; colors such as red or yellow are the most common. 

Types

Coupler Lock

A coupler lock is the most common of all trailer locks. It fits over the couple on the trailer’s tongue. This prevents anyone from hooking up a vehicle and driving off with your trailer.

Pin Lock

This type of lock works by sliding into the fastener hole where the hitch meets the frame of your vehicle. Some are bent at the end to add an extra layer of security for anyone trying to force it out of the hitch.

Trailer Hitch Lock Pricing 

A good variety of trailer hitch locks are affordable and cost less than $30. They can be anything from pin locks to coupler locks and are typically made of durable metal materials. More expensive hitch locks tend to be more rugged and longer-lasting. Some include additional locking mechanisms for added security.

FAQs 

You’ve got questions. The Drive has answers.

Q: What’s the advantage of using a trailer hitch lock? 

A:  They are a visual deterrent to thieves and, while they’re not 100 percent foolproof, they can be challenging to remove without a key. They also provide peace of mind when you leave your trailer unattended, so you can lessen your anxiety.

Q: How do I install a trailer hitch lock? 

A: That depends on the type of lock you use. You should follow the manufacturer’s instructions. You must disconnect your trailer from the tow vehicle and lower its front wheel or post. Then you must place the lock in the space where you would install the ball of your vehicle’s hitch. Once you make sure everything is aligned, lock it in place.

Q: What is the best type of trailer hitch lock to use?

A: Since it can take a bit of time to lock and unlock a trailer, consider the circumstances. A hitch pin is appropriate if you don’t need extra security. A right-angle lock is helpful if you regularly lock your trailer because it’s simple to access. If your trailer will be unattended for an extended period of time, a higher security lock is a better bet.

 
Best Black Friday Deals

Cyber Monday 2024 Deals Hub

Our editors combed through the best Cyber Monday deals to bring you incredible savings on everything a car person could want.