Best Coupler Locks For Trailers in 2023 (Review & Buying Guide)

Sometimes it might be quite difficult to find the best coupler locks for trailers. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this coupler locks for trailers buying guide.

Our Best Picks:

#	Preview	Product
1		Master Lock - Universal Size Fits 1-7/8", 2", and 2-5/16" Couplers - Trailer Locks #389DAT	Check Price
2		Master Lock Trailer Lock, Stainless Steel Adjustable Coupler Latch Lock, 2847DAT	Check Price
3		Master Lock 605DAT Shackle 15/16" Length x 7/16" Inner Width, 2" Body Width, Solid Brass Coupler...	Check Price
4		Rhino USA Trailer Hitch Coupler Lock Kit (Includes 2" & 1/4" Couplers) Heavy Duty Anti-Theft Tongue...	Check Price
5		Master Lock 379ATPY Universal Trailer Hitch Lock , Black	Check Price
6		CZC AUTO Black Trailer Hitch Coupler Lock, Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV Truck Car's...	Check Price
7		Master Lock 1471DAT Trailer Coupler Latch Lock, 3-4/10" Long Shackle x 9/32" Diameter Pin	Check Price
8		CURT 23521 Black Trailer Tongue Coupler Lock, 1/4-Inch Pin Diameter, Up to 3/4-Inch Span	Check Price
9		REESE Towpower 72783 Coupler Lock, Adjustable Storage Security, Heavy-Duty Steel, Yellow and Chrome	Check Price
10		CURT 23081 Powder-Coated Aluminum Trailer Tongue Lock, 2-5/16-Inch Couplers	Check Price

Our Favorite Coupler Locks For Trailers Reviews:

SaleBestseller No. 1

Master Lock - Universal Size Fits 1-7/8", 2", and 2-5/16" Couplers - Trailer Locks #389DAT

• Coupler Lock,Universal

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SaleBestseller No. 2

Master Lock Trailer Lock, Stainless Steel Adjustable Coupler Latch Lock, 2847DAT

• LOCK APPLICATION: Best used for vehicles, trailers, and RV hitch locks
• EASE OF USE: Six locking positions provide maximum flexibility; Rekeyable cylinder offers keyed-alike convenience
• DURABLE DESIGN: Water-tight cap protects trailer hitch lock from moisture and dirt
• SPECIFICATIONS: Coupler lock adjusts from 9/16 in. to 2-3/4 in. length
• INCLUDES: One trailer coupler latch lock, two keys

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Bestseller No. 3

Master Lock 605DAT Shackle 15/16" Length x 7/16" Inner Width, 2" Body Width, Solid Brass Coupler Lock

• Solid brass coupler latch lock with 3/4in (19mm) shackle
• Precision pin tumbler mechanism for superior pick resistance
• Resists rust and corrosion
• Lock design protects shackle from cutting and sawing
• Case hardened steel shackle

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Bestseller No. 4

Rhino USA Trailer Hitch Coupler Lock Kit (Includes 2" & 1/4" Couplers) Heavy Duty Anti-Theft Tongue Locks for Boat, RV, Travel Trailers & More - Reinforced Solid Steel for Ultimate Peace of Mind!

• AMERICAN OWNED, FAMILY OPERATED - Join the Rhino Family & Support a USA based Father/Son Business!
• PROTECTED FROM THE ELEMENTS - Powder Coated Protection Layer to Prevent Rust, Corrosion & Weathering
• FITS MOST 2 INCH COUPLERS - Maximum Coupler Lip Width 3-3/4" Maximum Coupler Lip Height is 3/8"
• CONFIDENCE & PEACE OF MIND - Knowing your Boats, Toy Hauler or Trailer is Protected From Theft.
• GUARANTEED 5-STAR EXPERIENCE - If you aren't 100% Satisfied for any Reason well Refund your Money

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Bestseller No. 5

Master Lock 379ATPY Universal Trailer Hitch Lock , Black

• Trailer hitch lock fits 1-7/8 in. (48mm), 2 in. (51mm) and most 2-5/16 in. (59mm) trailer couplers
• Trailer lock is best used for vehicles, trailers, and RVs
• Trailer coupler lock features advanced locking mechanism to resist picking and prying
• Trailer hitch lock is constructed from zinc to resist rust and corrosion
• Includes one trailer coupler lock, two keys

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SaleBestseller No. 6

CZC AUTO Black Trailer Hitch Coupler Lock, Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV Truck Car's Coupler (1 Pack, Black)

• CZC AUTO Trailer Hitch Coupler Locking Pin Design：1/4 Inch diameter tongue lock pin with effective length 3/4 Inch. Small size for easy carrying. Keeping the coupler lock in your pocket or vehicle anywhere that is fine. Please verify dimension and length of the pin you want before purchasing our coupler hitch lock pin.
• How To Operate Our Trailer Tongue Coupler Lock: Spinning the flat key 5-7 times to open or close the hitch lock.
• Security Of Our Coupler Locking Pin: This trailer lock is made of high-strength steel to deter theft. The hitch lock is coated with black electrophoretic paint to prevent corrosion.
• Coupler Locking Hitch Pin's Application: Tow Trailer Boat RV Truck Car
• CZC AUTO, a reliable brand in Hitch Sercurity Industry, we offer 30-day money-back for any reason, 12-month warranty for quality-related issues.

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Bestseller No. 7

Master Lock 1471DAT Trailer Coupler Latch Lock, 3-4/10" Long Shackle x 9/32" Diameter Pin

• This Master Lock protects and guards against tow-away theft. The lock works when the trailer is either connected to the tow vehicle or when the trailer is unattached. The lock prevents the coupler latch from moving, therefore preventing either the coupler to be removed from the ball, or not allowing a ball to be placed into the coupler.
• Fits UFP and surge brake couplers. K1 key blank
• Pin length or dimensional fit is 3-1/2" wide with a 9/32" diameter pin which is a standard size on virtually all couplers.
• Chrome plated for improved wear and corrosion resistance. It has a precision 4 pin tumbler mechanism that resists picking
• Weather Tough seal and water tight cap protects the lock from the elements

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Bestseller No. 8

CURT 23521 Black Trailer Tongue Coupler Lock, 1/4-Inch Pin Diameter, Up to 3/4-Inch Span

• DEPENDABLE SECURITY. To help protect your trailer from theft, this trailer lock is made from high-strength steel and has a padlock-style design.Fit Type: Universal Fit
• EASY TO OPERATE. This padlock-style trailer tongue lock has a heavy-duty look to deter theft, and uses a simple 1/4-turn lock activation for convenient locking and unlocking as needed
• VERSATILE. With a 1/4-inch diameter pin, this trailer coupler lock fits latch-type couplers with a maximum span of up to 3/4 inches
• WEATHER-RESISTANT. This trailer pin lock is protected from the elements with its black painted finish, while the coupler pin is shielded against corrosion with a durable zinc plating
• TWO KEYS INCLUDED. For your convenience, two keys are included with this trailer tongue lock. You can keep the spare key in a discrete location for emergencies or give it to a friend for helpful access

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SaleBestseller No. 9

REESE Towpower 72783 Coupler Lock, Adjustable Storage Security, Heavy-Duty Steel, Yellow and Chrome

• DIMENSIONS: 9” x 9” x 3”.Material:Steel
• BUILT TO LAST: The REESE Towpower Universal Coupler lock is a premium lock constructed with an aluminum body and heavy-duty steel lock bar. Distance between lock shackle holes center to center is 4-1/2 inch
• UNIVERSAL FIT: Ratchet design is adjustable with 11 locking positions and fits 1-⅞”, 2”, and 2-5/16” couplers.
• DETERS THEFT: Bright, deterrent yellow color is durable, highly visible, and an essential accessory to all types of trailers.
• SECURE PROTECTION: Easy-to-install lock resists picking, prying and drill outs. Guards against truck or trailer towaway theft in storage.

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SaleBestseller No. 10

CURT 23081 Powder-Coated Aluminum Trailer Tongue Lock, 2-5/16-Inch Couplers

• DEPENDABLE SECURITY. To help protect your trailer from theft, this trailer lock fits over the trailer tongue and is designed to prevent a trailer ball from being inserted into the trailer coupler
• EASY TO OPERATE. This trailer tongue lock has a sleek, subtle look to deter theft, and uses a simple 1/4-turn lock activation for convenient locking and unlocking as needed
• VERSATILE. With a standardized channel, this trailer coupler lock fits most 2-5/16-inch and some 2-inch flat and rolled-lip trailer couplers (check dimensions)
• WEATHER-RESISTANT. This trailer tongue lock is protected from the elements with its highly corrosion-resistant aluminum construction. It also features a grey powder coat finish for maximum corrosion prevention
• TWO KEYS INCLUDED. For your convenience, two keys are included with this trailer tongue lock. You can keep the spare key in a discrete location for emergencies or give it to a friend for helpful access

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Last update on 2023-01-12 / Affiliate links / Images from Amazon Product Advertising API

How to find the best coupler locks for trailers?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best coupler locks for trailers for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good coupler locks for trailers recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

• What features does the coupler locks for trailers need to have to be perfect for my needs?
• What is my budget?
• Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for coupler locks for trailers to find what you’re looking for:

Brand

In some cases, the brand of coupler locks for trailers is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given coupler locks for trailers are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about coupler locks for trailers are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare coupler locks for trailers quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best coupler locks for trailers can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.