Top 10 Trailer Coupler Lock 2 5/16 – Towing Hitch Locks

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1. Master Lock


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

Master Lock #ad - This lock protects unattended trailers and guards against tow-away theft. Advanced locking mechanism resists picking and prying. Resists rust and corrosion. The bright red finish discourages thiefs from messing with your trailer. Simple installation and removal. Universal coupler lock fits virtually all 1-7/8", 2", and 2-5/16" trailer couplers.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height7.5 Inches
Length6.5 Inches
Weight1 Pounds
Width4 Inches
Part Number389DAT
WarrantyMASTER LOCK PRODUCT WARRANTY Limited Lifetime Warranty Master Lock Company LLC (“Master Lock”) grants the following warranty: If this product or any part of the product fails due to a defect in materials or workmanship at any time during the life of the product, Master Lock will, at its own discretion, repair or replace the product or part free of charge. Simply contact Master Lock at or 1.800.464.2088 for instructions on obtaining repair or replacement.



AMPLOCK U-BRP2516 RV/Trailer Coupler Lock fits 2 5/16 inches Coupler

AMPLOCK #ad - Materials used by ampLOCK provide good rust resistance for use in all climates. Molded to fit the specific shape of your trailer or Caravan RV 2 5/16 inches coupler when unhitched. Easy to use with ampLOCK’s push and lock system. The strongest lock to secure your trailer or caravan RV made with high quality materials and control and identification key system.
BrandAMPLOCK #ad
ManufacturerAMP #ad
Height8.5 Inches
Length7 Inches
Weight12 Pounds
Width6 Inches
Part Number8 87613 30016 7-a
Model8 87613 30016 7-a
WarrantyAMP Drummond Inc. (the ''Company'') provides a one-year limited warranty from the original date of purchase by the end-user of the products manufactured by the Company (the ''Product'') against defects in material and workmanship. This limited warranty is non-transferrable and is subject to certain restrictions. The provisions of this warranty do not apply to Products: (i) used for purposes for which they are not designed or intended; (ii) which have been altered or abused; or (iii) which have been used in violation of any written instructions provided by the Company. SOLE REMEDY; NO ADMISSION The company's sole obligation under this warranty shall be to replace the Product. In no event shall the Company's acceptance to replace a Product be construed as an admission of liability of any kind, including, without limitation, that the Product returned was in fact defective.

3. Master Lock


378DAT, Fits 2-5/16 in. Couplers, Trailer Coupler Lock, Master Lock Trailer Lock

Master Lock #ad - Advance locking mechanism resists picking and prying. Fits 2-5/16 in. Includes one trailer coupler lock, two keys. Designed to resist rust and corrosion. 59 mm trailer couplers; Does not fit Gooseneck Trailer Couplers. Coupler lock is best used for trailers; Works best with Straight Tongue Trailer Couplers.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height3.5 Inches
Length7.25 Inches
Weight3.4 Pounds
Width5.5 Inches
Part Number378DAT
WarrantyLimited Lifetime

4. Tow Ready


Tow Ready 63227 Coupler Lock For Most 2 5/16" Couplers

Tow Ready #ad - Height of coupler lip cannot be greater than 5/16". Design shields Lock From Tampering Devices. Coupler width including lip cannot exceed 4-1/8". Fits most 2-5/16" trailer couplers.
BrandTow Ready #ad
ManufacturerHORIZON GLOBAL #ad
Height0 Inches
Length0 Inches
Weight2.2 Pounds
Width0 Inches
Part Number63227

5. Proven Industries


Black, Proven Industries Model 2516 Trailer Lock, Made in the USA, Fits 2 5/16-Inch Couplers

Proven Industries #ad - Custom trailer-coupler lock: this custom-tailored lock will only mount on very specific 2 5/16-inch couplers. We carefully research and manufacture our locking systems from conception to fabrication in the USA. Tough lock: the locking parts on this device are constructed from hardened steel for increased security, and the exterior cover is tough enough to stop burglars from using power tools, hammers, and crowbars on your lock.

Make sure to check the coupler sizes that are compatible with our lock hardware to ensure that the lock you select matches your trailer coupler. Proven industries: we are dedicated to providing our customers with the most effective trailer locks on the market. Unique key design: our trailer lock has a special key design that prevents anyone from picking the lock.

Our strong coupler lock fits select 2 5/16-inch trailer couplers to help keep your trailer secure. This innovative key system also features an interior locking mechanism that stops would-be thieves from making a copy of your key. Heavy-duty trailer lock: it’s important to do everything you can to protect your belongings and your trailer or camper from being stolen.
BrandProven Industries #ad
ManufacturerProven Locks #ad
Weight10 Pounds
Part Number2516

6. Fastway


2 Inch and 2 5/16 Inch Couplers, Fastway Fortress 86-00-5015 Maximum Security Universal Coupler Lock for 1 7/8 Inch

Fastway #ad - Unique shackle shape designed to help prevent the lock from being pried off your trailer. Innovative lock design was engineered to make it difficult to pick or drill. Limited Lifetime Warranty. This style of locks are harder to pick and much safer than others. Universal compatibility: fits virtually all 1-7/8”, 2”, and 2-5/16” tongue type trailer couplers to help prevent your trailer from being stolen. Two barrel-style keys included.
BrandFastway #ad
ManufacturerFastway Trailer Products #ad
Height4 Inches
Length15.8 Inches
Weight3 Pounds
Width12.2 Inches
Part Number86-00-5015
Warranty2 year limited warranty



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

CURT #ad - 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. 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.

Two keys included. This trailer tongue lock is protected from the elements with its highly corrosion-resistant aluminum construction. Weather-resistant. Dependable security. Versatile. It also features a grey powder coat finish for maximum corrosion prevention.

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. 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.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height5.13 Inches
Length5.75 Inches
Weight1.4 Pounds
Width3.25 Inches
Part Number23081
WarrantyLimited Lifetime Warranty (One-Year Finish, One-Year Parts)

8. X-Haibei


Dust-Proof Black, Universal Trailer Ball Hitch Locks, Rustproof, X-Haibei Trailer Coupler Lock fits 1 7/8, Heavy Duty Aluminum Body, 2 and 2 5/16 inch Couplers, Copper Lock Cylinder

X-Haibei #ad - The adjustable coupler lock has a standard 2" ball fits 1-7/8” 2” and 2 5/16" couplers, maximum tongue width is 4 inch. The ratchet is adjustable with 11 locking positions.

The trailer hitch lock is made of heavy-duty plated steel and thickened spray paint aluminum alloy, which is rust resistant for superb durability and longevity. Black color makes it easy to see, resists picking, deter a thief. It comes with a set of two brass keys. All-weather rubber cover protects your pure copper lock cylinder away from rain, water, sand, and more;. The lock cylinder is made of pure copper lock cylinder, dust, which is anti-rust. Easy-to-install towing hitch lock in seconds, prying and drill outs. One year warranty, i am here and ready to assist you with any questions or concerns you might have. Suitable for outdoor use.
BrandX-Haibei #ad
ManufacturerX-Haibei #ad
Part NumberBT0023



2-5/16" Coupler, METOWARE Trailer Coupler Lock Universal Adjustable Heavy-Duty Steel Trailer Hitch Lock, Anti Theft Trailer Ball Lock Towing Lock for Towing Caravan Trailer Security Fits 1-7/8",2”

METOWARE #ad - The new design of the lock core makes it lock more secure. In addition, a year of quality warranty is provided. Easy to use – metoware trailer lock set ratchet design is adjustable with 11 locking positions.

Heavy duty tow ball coupler lock – metoware universal hitch lock is a newly upgraded trailer coupler lock with all metal construction. Universal compatibility – this universal trailer hitch security adjustable lock fits 1-7/8”, 2”, 2-5/16” couplers and ratchet is adjustable with 11 locking positions. If you are not satisfied with our lock within 30 days of your purchase, you will get all your money back or a replacement.

Warranty service – we warrant the quality of our products. It is easy and quick for you to install and remove. Safety & high quality – the core of the coupler lock is made of premium zinc alloy tubular and combines with the last anti-theft technology. The surface of lock body is frosted, non-slip, Wear-Resistant, and Rust-Proof.
ManufacturerMETOWARE #ad
Part Number40895



AMPLOCK U-TLS2516I RV Trailer Inverted Coupler Lock fits Specific 2 5/16 inches Coupler

AMPLOCK #ad - Make sure you choose the right model for your caravan rV coupler size and type, referring to pictures provided and make sure the width of your coupler is 4. 75'' or less otherwise it won't fit photos are for visual reference only **. Protect your rv/caravan trailer with your AMPLock 2 5/16 inches coupler lock when unhitched. Easy to use with aMPLOCK's push and lock system. Materials used by ampLOCK provide good corrosion resistance for use in all climates. The right lock to secure your RV made with high quality materials and control and identification key system.
BrandAMPLOCK #ad
ManufacturerAMPLock #ad
Height8.5 Inches
Length7 Inches
Weight5 Pounds
Width6 Inches
Part NumberTLS2516I