Types of Trailer Hitch Couplers of 2025
Best Choice1
Clicked 8 times in the last monthTrimax43% OffTrimax - UMAX 100 - Trailer Lock for Hitch, Dual Force Security - Trailer Hitch Lock for 1-7/8" - 2-5/16" Couplers, All Coupler Types
9.3 Easy installation9.1 Simple to use8.9 SecurityWhy we love it
Universal fit for multiple coupler sizes.
Durable and weather-resistant nylon housing.
High-security key resists drill outs.
9.8Exceptional
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Value for Money2
CURTCURT 25330 Channel-Mount Adjustable Trailer Coupler, 2-5/16-Inch Hitch Ball, 14,000 lbs , Black
Why we love it
Easily adjustable for level towing.
Durable construction with high weight capacity.
Corrosion-resistant finish for long-lasting use.
9.7Exceptional
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3
METOWAREMETOWARE Trailer Tongue Coupler Lock 1/4" Dia, 3-1/2" Span, Trailer Hitch Lock for Latch-Type Coupler, Black Trailer Pin Lock for Towing Trailer RV Car Boat Truck (1 Pack)
9.9 Easy installation9.7 Simple to use9.7 lock easilyWhy we love it
Secure: Heavy duty steel construction, reinforced zinc alloy lock core, stronger tubular keys.
Convenient: Push to lock design, easy operation.
Protection: Electrophoretic paint, watertight rubber cap rust prevention.
9.6Exceptional
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4
METOWAREMETOWARE Keyed Alike Hitch Lock& Coupler Lock Set, 5/8" Dia 3-1/2” Long Trailer Hitch Locks for Class III IV 2" & 2-1/2" Receiver, Dia 1/4" Trailer Coupler Lock with 7/8" Span Fits Latch-Type Couplers
Main highlights- 【TRAILER LOCK FEATURE】- Black Trailer Hitch Lock is designed with 5/8 inch diameter and 3-1/2 inch long pin, perfect for class III IV hitches, big towing vehicle, truck, 2 inch & 2-1/2 inch hitch receiver. (Please confirm your required size or email us for more suggestion before having the order).
- 【SAFE& EASY TO OPERATE】 - The hitch lock and coupler lock are both designed for easy operation. With the Push-to-lock design, you can easily push to lock them without using key. Compared to a traditional coupler, just turn the key a little bit and the pin will pop out by itself, instead of turning it 5-7 times to open or lock. And the dust cap aims to keep the keyhole away from water and dirt.
- 【KEYED ALIKE SET】- For your convenience, this hitch lock & coupler lock set comes with 4 keys all alike. You can easily open this set of lock by one key. Solve the trouble of constantly rummaging in your pocket for different keys. ( NOTICE: Please pay attention to the applicable types of coupler on the details page.)
- 【HIGH QUALITY MATERIAL】- Made of premium strength steel and coated with electrophoretic paint, the trailer lock is durable and rust-proof. Its anti-theft design can withstand significant blogs from different kinds of external force. This trailer coupler lock with rubber cap can prevent rattle noise and reduce the risk of scratches. The trailer lock set is reliable for long-term hauling and is secure for full protection, safely protecting your trailer, boat, camper and so on from theft.
- 【COUPLER LOCK FEATURE】- Dia 1/4 inch trailer coupler lock fits latch-type couplers with a max span up to 7/8 inch - zinc alloy lock core and stronger copper keys improve the security. It is powerful enough for long-term hauling and full protection, allowing you enjoy your towing journey with security insurance.
9.5Excellent
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5
CZC AUTOCZC AUTO Trailer Lock 1/4" Dia, Trailer Coupler Lock 3-3/8" Span Trailer Tongue Lock Fits Latch-Type Coupler, Black Trailer Pin Lock with Keys for Towing Boat Truck Trailer RV Car
9.1 Durability8.9 Easy installation8.4 SecurityWhy we love it
Fits various vehicles like boats, trucks, and RVs.
Easy-to-use rotating head for quick locking.
Durable, corrosion-resistant carbon steel construction.
9.3Excellent
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6
CURT28% OffCURT 25100 Straight Tongue Trailer Coupler for 3-Inch Channel, 2-In Hitch Ball, 5,000 lbs
Main highlights- SECURE COUPLING. The posi-lock latch mechanism of this trailer tongue coupler accepts a safety pin or coupler lock for enhanced security
- PRECISE FIT. This trailer coupler is designed to mount onto a 3-inch wide trailer tongue beam and couple to any standard 2-inch diameter trailer ball
- HIGH-STRENGTH. Constructed from punched, die-cut steel, this trailer ball coupler is rated as a class 3 trailer coupler and has a capacity of 5,000 lbs. gross trailer weight and 700 lbs. tongue weight
- EASILY ADJUSTABLE. Equipped with a posi-lock spring and adjustable nut on the inside, this trailer hitch coupler can easily be adjusted to ensure a snug fit on the trailer ball
- CORROSION-RESISTANT. To easily outlast the elements, including rain, snow, dirt, road grime and more, this straight tongue trailer coupler is finished in a durable zinc plating and makes a great boat trailer coupler
9.2Excellent
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7
CZC AUTOCZC AUTO Trailer Tongue Coupler Lock Adjustable Trailer Coupler Pin Lock Keyed Alike 2 Pack Dia 1/4 Inch 3 Inch Effectice Length Fit 1 Inch to 3 Inch Latch-Type Coupler for Towing Truck RV Car Trailer
Main highlights- Security & Longer Lifespan of Adjustable Coupler Locking Pin. Made of high-strength steel which is chromed, the 1/4 inch trailer coupler locks 2 pack are good at detering theft and preventing corrosion. 360 degree rotating lock head and key slot are well protected by rubber cap. Water/dust /dirt will be kept out and you can get longer sevice period from the lock
- Easy to Operate Coupler Latch Lock. Our 1/4 inch trailer tongue lock can be easily locked and unlocked with key. Please note that the direction in which the lock head is inserted is the same as the mark on it. And after locked, you just need to pull the lock head to ensure it is working
- Cost-save, time-save and storage space-save. Application of the 2 pack adjustable 1/4 Inch Trailer Pin Lock: 1 Inch to 3 Inch latch-type couplers for towing boat truck RV car. Get an adjustable trailer couper lock with 4 active length, you don't need to buy different locks for your different 1 inch to 3 inch couplers and spend more time to distinguish all the keys
- CZC AUTO - Reliable Brand in Hitch Lock Industry. We offer 30-day money-back for any reason, 12-month warranty for quality-related issues. Any issue in using our 2 pack trailer hitch coupler lock, simply contact us, your problem will be solved within 24 HOURS
- Adjustable Trailer Hitch Coupler Locking Pin's Design. 1/4 inch diameter 2 pack chromed tongue lock pin with 3 inch effective length. The keys of 2 pack are the same. There are 4 active length can be adjusted: 1 inch,1.7 inch, 2-1/2 inch and 3 inch. Please verify the size you need before purchasing our 2 pack adjustable trailer hitch coupler pin lock
9.1Excellent
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8
CZC AUTOCZC AUTO Trailer Tongue Coupler Lock, Dia 1/4 Inch, 7/8 Inch Span Fits Latch-Type Coupler for Towing Boat Truck RV Car Trailer (2 Pack Keyed Alike)
Main highlights- Trailer Hitch Coupler Locking Pin's Design: 1/4 inch diameter black tongue lock pin with 7/8 inch effective length. Please verify the size before purchasing our trailer hitch coupler pin lock 1/4 inch
- Security of Our Coupler Locking Pin: Made of high-strength steel and coated with black electrophoretic paint, the 1/4 inch trailer coupler lock is good at detering theft and preventing corrosion. Zinc alloy tubular lock core and more solid round key also help to improve security of the black coupler lock
- Easy to Operate: Our Coupler Latch Lock 1/4 inch trailer tongue lock is easy to lock and unlock. 1/4 turn the key to open the coupler pin lock, the pin will pop-up automatically and comfortably
- CZC AUTO - Reliable Brand in Towing Sercurity Industry. We offer 30-day money-back for any reason, 12-month warranty for quality-related issues. Any issue in using our trailer hitch coupler lock, simply contact us, your problem will be solved within 24 HOURS
- Application of the 1/4 Trailer Pin Lock: Fit latch-type couplers for towing boat truck RV car. The keys of 2 pack are the same. The watertight rubber cap keeps rain, snow, ice and dirt out
9.0Excellent
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9
RETRUERETRUE Trailer Tongue Coupler Lock, Dia 1/4 Inch, 3-1/2 Inch Span Trailer Hitch Lock for Latch-Type Coupler, Tow Boat RV Truck Car's (2 Pack, Black)
Main highlights- Universal Fit Coupler Lock. For coupler 1/4-inch latch padlock-style design tongue lock, this trailer coupler lock fits latch-type couplers with a maximum span of up to 3-1/2 inches
- Tubular Keys and Special Lock Function. RETRUE dog bone style coupler lock with a 360 degree rotating head and upgraded cylinder. 2 tubular keys include easy to turn 1/4 counterclockwise to lock, you only need to pull the lock to make sure it is working. Special locking function and double alike tubular keys enhances your convenience of use.
- Satisfaction Guaranteed: Enjoy a 120-day warranty and responsive 24/7 customer support. If you experience any issues, simply reach out via the "Ask a Question" button for assistance. We're committed to providing top-notch service.
- 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
- Alike Keys Fairly Reliable - From RETRUE your reliable partner, all of our keys in 2 packs of trailer locks are keyed alike. You can rest assured that you can purchase our same fitted locks to facilitate your travels.
8.9Very Good
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10
CZC AUTOCZC AUTO Hitch Lock Set Dia 5/8 Inch Trailer Hitch Receiver Pin Lock Keyed Alike for Class III IV 2" and 2-1/2" Receiver Dia 1/4 Inch Hitch Coupler Lock with 2-1/2 Inch Span Fit Latch-Type Couplers
Main highlights- Universal Application of CZC AUTO Hitch Pin Lock Kit. Hitch rack, cargo hitch tray, bike rack, hitch ball and tow rope, perfect for 2" and 2-1/2" receivers and latch-type couplers for towing purpose like trailer truck RV car boat.
- Security of 5/8 Inch Towing Hitch Lock & 1/4 Inch Coupler Locking Pin. Made of high-strength steel and coated with black electrophoretic paint, the 5/8 inch hitch pin lock & 1/4 inch trailer coupler lock is good at detering theft and preventing corrosion. Zinc alloy tubular lock core and more solid round key also help to improve security of the hitch locking pin.
- Please Verify the Size before Purchasing CZC AUTO Trailer Receiver Lock Set. Dogbone style hitch receiver lock : Dia 5/8 inch pin with 3-1/2" effective length, perfect for Class III/IV 2", 2-1/2" hitch receiver tubes. Trailer Hitch Coupler Locking Pin: Dia 1/4 inch black tongue lock pin fits latch-type couplers with a max span up to 2-1/2 inch.
- EASY OPERATE DESIGN: CZC AUTO hitch lock can be easily locked and unlocked with key. For convenience, our lock comes with 2 keys each set. And after locked, you just need to pull the lock head to ensure it is working
- CZC AUTO - Reliable Brand in Hitch Locks Industry. We offer 30-day money-back for any reason, 12-month warranty for quality-related issues. Any issue in using our trailer hitch coupler lock, simply contact us, your problem will be solved within 24 HOURS.
8.8Very Good
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