Best Trailer Coupler Latch Lock

Peter | 01-01-2026

Navigating the many Best Trailer Coupler Latch Lock options on the market – from major brands like Master Lock,Widesco,RETRUE,METOWARE to lesser-known names – can feel overwhelming. But we’re here to help simplify your search for the best products.

After extensive research testing hundreds of Best Trailer Coupler Latch Lock, we’ve selected the top contenders. Our number one recommendation is Master Lock Best Trailer Coupler Latch Lock based on its stellar performance and quality. Below you’ll find more of our top-rated picks for the best Best Trailer Coupler Latch Lock currently available.

Be sure to consult our handy buying guide as well for expert tips on choosing the right Best Trailer Coupler Latch Lock to suit your individual needs. It has all the crucial information you need to make an informed purchasing decision. With our guidance backing your choice, finding your perfect match will be smooth sailing!

Editor's Choice
RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV
RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV
Premium Pick
Master Lock 605DAT Shackle 15/16
Master Lock 605DAT Shackle 15/16" Length x 7/16" Inner Width, 2" Body Width, Solid Brass Coupler
Budget Pick
Widesco Keyed Alike Trailer Hitch Lock Set, Include Coupler Lock Fits 1-7/8
Widesco Keyed Alike Trailer Hitch Lock Set, Include Coupler Lock Fits 1-7/8", 2'' 2-5/16" Coupler,

Top 10 Best Trailer Coupler Latch Lock

We researched and compared the top products in the Best Trailer Coupler Latch Lock category to provide you with these recommendations.

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

Master Lock Trailer Lock, Stainless Steel Adjustable Coupler Latch Lock, 2847DAT
8.7

Master Lock

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  • The product is manufactured in china
  • The product is highly durable and easy to use
  • Easy installation and easy handling

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

Master Lock 605DAT Shackle 15/16
9.5

Master Lock

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  • APPLICATION: Solid brass coupler latch lock for securing trailer hitch
  • TRUSTED SECURITY: Precision pin tumbler mechanism for superior pick resistance
  • WEATHER RESISTANT: Hitch pin lock resists rust and corrosion for long-term outdoor use
  • DURABLE: Lock design protects the case-hardened steel shackle from cutting and sawing
  • PICK-RESISTANT: Precision pin tumbler mechanism resists picking

3. Widesco Keyed Alike Trailer Hitch Lock Set, Include Coupler Lock Fits 1-7/8", 2'' 2-5/16" Coupler,

Widesco Keyed Alike Trailer Hitch Lock Set, Include Coupler Lock Fits 1-7/8
9.1

Widesco

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  • ALL-IN-ONE TRAILER HITCH LOCK KIT Keyed Alike for Ultimate Convenience. Our trailer hitch lock set including 1pc 1/2" and 5/8" diameter dual bent pin anti-theft trailer hitch lock, 1pc 1/4"dia trailer coupler lock with 3/4" inch span, 1pc universal ball coupler lock fits 1-7/8",2", 2-5/16" coupler. all locks use the same key, making this the ideal kit for securing most trailers.
  • UNIVERSAL COUPLER LOCK This universal adjustable coupler lock fit 1-7/8", 2", and 2-5/16" couplers. it features an adjustable ratchet mechanism with 11 locking positions for a precise and secure fit. constructed with a high-quality zinc alloy tubular core, this lock incorporates advanced anti-theft technology for enhanced protection. the innovative design of the locking mechanism ensures superior security and reliability.
  • TRAILER RECEIVER LOCK The Widesco trailer hitch lock features a dual bent pin design for enhanced security and is engineered for simple operation. Its innovative push-to-lock mechanism allows you to secure it effortlessly without needing the key. For unlocking, a slight turn of the key will cause the pin to automatically pop out. The integrated dust cap effectively protects the keyhole from water and dirt, making it a well-designed solution for easier and more reliable use.
  • TRAILER TONGUE COUPLER LOCK Designed for user-friendly operation, this coupler lock utilizes a simple screw-type locking mechanism. It can be securely opened or locked by turning the key just 5 to 7 times, saving you both time and effort. The tow hitch lock allows for quick and easy installation, enabling you to hook up and depart without delay.
  • EFFECTIVE DETERRENT This trailer lock set features a advanced anti-theft technology for maximum security. Designed to be an effective theft deterrent for most users, even in high-crime areas, the ball hitch lock helps ensure your valuable cargo remains protected. By significantly lowering the risk of your RV being targeted by thieves, this coupler lock provides reliable peace of mind. The set includes three trailer hitch locks, all keyed alike for convenient access.

4. RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV

  • Universal Fit Coupler Lock. With a 1/4-inch diameter pin and has a padlock-style design, this trailer coupler lock fits latch-type couplers with a maximum span of up to 3/4 inches
  • Reliable Strength. This trailer pin lock is made of high-strength zinc alloy and protected from the elements with its black painted finish, while the coupler pin is shielded against corrosion with a durable zinc plating, enhance the the life of coupler lock and the security
  • Highly Security. To help protect your trailer away from theft, this trailer lock is made from high-strength steel and has a padlock-style design
  • Easy to use. This padlock-style trailer tongue lock has a heavy-duty look to deter theft. Uses a simple 1/4-turn lock activation for convenient locking and unlocking, Simply spin the flat key 5-7 times to open or close our hitch locking pin
  • 2 Keys Included for Your Convenience. 2 keys comes in the package. If you encounter any problems, please feel free to contact us through the "Ask a Question" button. We are always happy to help and are committed to providing a responsive solution 24/7

5. METOWARE Trailer Tongue Coupler Lock 1/4" Dia, 3-1/2" Span, Trailer Hitch Lock for Latch-Type

  • [Package Include] One lock pin ( 1/4" diameter&3-1/2 span) + one lock head( 361rotating design& water proof rubber cap) + two tubular keys ( one for standby).
  • [Security Guarantee] Made of heavy-duty steel, our trailer hitch is durably and strong. Its reinforced zinc alloy tubular lock core and stronger tubular keys improve the security.
  • [Push-to-lock Design] Our trailer coupler lock is designed for easy operation. With the push-to-lock design, you can easily push to lock it without using key. To open it, just turn the key a little bit and the pin will pop out by itself.
  • [Rust Protection& Durability] The electrophoretic paint on the surface of trailer pin lock with the addition of its watertight rubber cap, keep rust at bay even the lock always get soaked on any journey over wet or snowy roads, and keep the keyhole away from water and dirt.
  • [Heavy Duty Trailer Coupler Lock]This trailer coupler lock is 1/4 inch diameter with 3-1/2 inch effective length - convenient for you to carry, available to put in your pocket, bag or vehicle anywhere. It is powerful enough for long-term hauling and full protection, allowing you enjoy your towing journey with security insurance.

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

Master Lock 1471DAT Trailer Coupler Latch Lock, 3-4/10
7.9

Master Lock

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  • 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 3-4/10" 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

7. RETRUE Cyber Lock™ Trailer Tongue Coupler Lock, Upgrade Lock Extra Wide 1.2'' Span, Dia 1/4'',

  • ONE PUSH TO LOCK: The RETRUE CYBER LOCK upgraded series offer keyless convenience, allowing you to secure it with just a simple press, locking it instantly and making it an ideal choice for quick and easy protection on the go
  • UPGRADE 1.2'' SPAN: This trailer latch lock, with a maximum span of 1.2 inches, offers enhanced compatibility with various trailer coupler sizes, making it a versatile choice for different trailers. With a single lock, you can secure multiple trailers in your fleet, enjoying the convenience and efficiency it brings
  • EASY-TO-USE DESIGN: The RETRUE CYBER LOCK series features an intuitive design that simplifies the locking and unlocking process. With 'One Push to Lock', it offers a simpler alternative to traditional trailer locks, eliminating the need for multiple turnsjust a half-turn to unlock
  • ENHANCED SAFETY: To deter theft, this trailer lock is crafted from high-strength steel and features a padlock-style design. It comes with two upgraded keys, boasting enhanced thickness for durability and resistance to bending, ensuring maximum security for your trailer
  • PROTECTIVE RUBBER CAP: This Lock comes with a rubber protective cover that offers dust and mud protection. No need to worry even on rainy days
  • WHAT'S INCLUDED: 1 x Latch Lock, 1 x Rubber Cover, 2 x Keys

8. MaxxHaul Trailer Tongue Coupler Lock - Adjustable Trailer Tongue Pin, 1/4" Diameter, Fits 1" to 3"

MaxxHaul Trailer Tongue Coupler Lock - Adjustable Trailer Tongue Pin, 1/4
7.9

Maxxhaul

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  • Constructed from high-strength steel with chrome finish to resist rust and corrosion and handle all types of weather conditions
  • Includes diameter 1/4" locking pin, 360 rotating lock head all-weather rubber cap, and 2 flat keys for maximum security to help tighten in place
  • Adjustable with 4 different active lengths: 1", 1-11/16", 2-3/8", and 3-1/16"
  • Easy to operate with a user-friendly push-to-lock design without using the key
  • Suitable use for 1" to 3-1/16" latch-type couplers for towing, boat, truck, and RV

9. 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
  • 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

10. Trimax SXTC3 Premium Stainless Steel Coupler Lock (3.5" Span)

  • 100% stainless steel, including ALL internal components
  • Patented design incorporates O-ring and water proof cap to seal out dirt and corrosion
  • Fits up to a 3.5-inch span
  • Full length pin made of solid forged machined stainless steel
  • Includes two keys

Peter

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