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We will reply and give you the best solution within 24 hours. Highly visibleuse of a bright, highly visible protection for trailers. Quality serviceif you have any problems or questions, deterrent yellow color offers durable, please don't hesitate to contact us via message.
Dependable securityto protect your trailer from theft, this trailer lock is made with an aluminum body and high-strength steel construction, strong cut and shear resistance.

Versatile. You can keep the spare key in a discrete location for emergencies or give it to a friend for helpful access.
Watertight. Two keys included. With a 5/8-inch diameter pin and 2. 85 inches of usable pin length, this receiver hitch lock fits virtually any 2-inch x 2-inch hitch receiver with a 5/8-inch hole not compatible with double-walled receiver tubes. Dependable security. Easy to operate. For your convenience, two keys are included with this trailer hitch lock.




30 days Free Return. Universal fit: ratchet design is adjustable with 11 locking positions and fits 1-⅞” 48mm, 2” 51mm, and 2-5/16” 59mm couplers.


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.
Unique key design: our trailer lock has a special key design that prevents anyone from picking the lock. We carefully research and manufacture our locking systems from conception to fabrication in the USA. 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. Our strong coupler lock fits select 2 5/16-inch trailer couplers to help keep your trailer secure.

1. Master Lock
#ad
Universal Size Fits 1-7/8", 2", Trailer Locks #389DAT, Master Lock, and 2-5/16" Couplers
#adMaster Lock #ad - Universal coupler lock fits virtually all 1-7/8", 2", and 2-5/16" trailer couplers. This lock protects unattended trailers and guards against tow-away theft.More information #ad
Resists rust and corrosion. The bright red finish discourages thiefs from messing with your trailer. Advanced locking mechanism resists picking and prying. Simple installation and removal.Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 7.5 Inches |
Length | 6.5 Inches |
Weight | 1 Pounds |
Width | 4 Inches |
Part Number | 389DAT |
Model | 389DAT |
Warranty | MASTER 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 www.masterlock.com or 1.800.464.2088 for instructions on obtaining repair or replacement. |
More information #ad
2. Turnart
#ad
Trailer Tongue Lock, Heavy-Duty Steel, 2 Pack,Hitch Lock, Turnart Trailer Hitch Lock Keyed Alike, 2", Universal Size Fits 1-7/8", Trailer Coupler Lock, Adjustable, Trailer Lock Set, 2-5/16" Couplers
#adTurnart #ad - You can keep the spare keys in a discrete location for emergencies or give it to a friend for helpful access. Universal fit ratchet design is adjustable with 11 locking positions and fits 1-7/8”, 2”, and 2-5/16” couplers.We will reply and give you the best solution within 24 hours. Highly visibleuse of a bright, highly visible protection for trailers. Quality serviceif you have any problems or questions, deterrent yellow color offers durable, please don't hesitate to contact us via message.
More information #ad
Contains 6 identical keysfor your convenience, 6 identical keys are included with this trailer hitch lock. Watertight & resists rust and corrosionthe internal components of this hitch lock can easily be protected from the elements with the included watertight dust cap, while the entire hitch lock is shielded against corrosion with a durable powder coat finish. Dependable securityto protect your trailer from theft, this trailer lock is made with an aluminum body and high-strength steel construction, strong cut and shear resistance.
Brand | Turnart #ad |
Manufacturer | Turnart #ad |
Part Number | 5006 |
More information #ad
3. CURT
#ad
5/8-Inch Pin Diameter, CURT 23518 Black Trailer Hitch Lock, Fits 2-Inch Receiver
#adCURT #ad - To protect your trailer and trailer hitch ball mount from theft, this locking hitch pin is made with high-strength steel construction. The barbell-style locking hitch pin promotes an impenetrable appearance to deter theft, and uses a simple 1/4-turn lock activation for convenient locking and unlocking as needed.Versatile. You can keep the spare key in a discrete location for emergencies or give it to a friend for helpful access.
More information #ad
The internal components of this hitch lock can easily be protected from the elements with the included watertight dust cap, while the entire hitch lock is shielded against corrosion with a durable powder coat finish. Watertight. Two keys included. With a 5/8-inch diameter pin and 2. 85 inches of usable pin length, this receiver hitch lock fits virtually any 2-inch x 2-inch hitch receiver with a 5/8-inch hole not compatible with double-walled receiver tubes. Dependable security. Easy to operate. For your convenience, two keys are included with this trailer hitch lock.
Brand | CURT #ad |
Manufacturer | CURT #ad |
Height | 1.25 Inches |
Length | 8.87 Inches |
Weight | 0.7 Pounds |
Width | 1.87 Inches |
Part Number | 23518 |
Model | 23518 |
Warranty | Limited 1-year Warranty |
More information #ad
4. Master Lock
#ad
2 Pack, Master Lock 1479TAT Receiver Lock
#adMaster Lock #ad - Load rating. 4-pin cylinder for added pick resistance. Same key opens both locks; K1 Key Blank. 70mm. Weather tough seal and water tight cap protects lock from moisture and dirt.More information #ad
Usable length of receiver pin is 2-3/4 in. Fits 5/8in 16mm receivers. Push to lock locking mechanism - push lock body onto pin firmly and remove key. Class iii/iv; 10, 000 lb.Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 1.5 Inches |
Length | 8 Inches |
Weight | 1.55 Pounds |
Width | 5.8 Inches |
Part Number | 1479TAT |
Model | 1479TAT |
Warranty | As Labelled |
More information #ad
5. Master Lock
#ad
Master Lock 379ATPY Universal Trailer Hitch Lock , Black
#adMaster Lock #ad - Trailer lock is best used for vehicles, trailers, and RVs. Trailer hitch lock is constructed from zinc to resist rust and corrosion. 48mm, 2 in. Trailer hitch lock fits 1-7/8 in.More information #ad
51mm and most 2-5/16 in. 59mm trailer couplers. Includes one trailer coupler lock, two keys. Trailer coupler lock features advanced locking mechanism to resist picking and prying.Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 4.6 Inches |
Length | 5.1 Inches |
Weight | 2 Pounds |
Width | 3.5 Inches |
Part Number | 379ATPY |
Model | 379ATPY |
Warranty | 1 year manufacturer |
More information #ad
6. AMPLOCK
#ad
AMPLOCK U-BRP2516 RV/Trailer Coupler Lock fits 2 5/16 inches Coupler
#adAMPLOCK #ad - 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.More information #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.Brand | AMPLOCK #ad |
Manufacturer | AMP #ad |
Height | 8.5 Inches |
Length | 7 Inches |
Weight | 12 Pounds |
Width | 6 Inches |
Part Number | 8 87613 30016 7-a |
Model | 8 87613 30016 7-a |
Warranty | AMP 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. |
More information #ad
7. OKLEAD
#ad
2 Inch , 2-5/16 Inch Couplers Yellow, OKLEAD Universal Coupler Lock Trailer Locks Ball Hitch Trailer Hitch Lock Adjustable Security Heavy-Duty Steel fits 1-7/8 Inch
#adOKLEAD #ad - Package including: 1 x trailer hitch lock body & 2 x Cross Keys. Security devices-secure your trailer truck, deter a thief. Guarantee: any issues with our coupler lock, Don’t be hesitated to contact us, we will give you a replacement or refund until you satisfy.30 days Free Return. Universal fit: ratchet design is adjustable with 11 locking positions and fits 1-⅞” 48mm, 2” 51mm, and 2-5/16” 59mm couplers.
More information #ad
Sturdy & durability: the universal Coupler lock is a premium lock constructed with an aluminum body, heavy-duty steel lock bar and brass lock cylinder. Please keep the attached keys safe. For security reasons, we do not keep any spare keys. Easy to use: easy-to-install lock in seconds, yellow color makes it easy to see, resists picking, prying and drill outs.Brand | OKLEAD #ad |
Manufacturer | OKLEAD #ad |
Height | 3.11 Inches |
Length | 6.14 Inches |
Weight | 1.87 Pounds |
Width | 5.63 Inches |
Part Number | L3007 |
More information #ad
8. Rhino USA
#ad
Patented 5/8" Locking Receiver Pin for Class III IV Hitches, Used to Tow Truck, Bike, Boat, Weatherproof Anti-Theft Lockable Pin with Dust, Mud & Gunk Protection, Rhino USA Trailer Hitch Lock
#adRhino USA #ad - Common hitch sizes - our unique hitch pin Fits all Class III & IV Hitches 2" x 2" With Ease. Guaranteed 5-star experience - if you aren't 100% Satisfied for any Reason, We'll Refund your Money.More information #ad
American owned, family operated - join the rhino family & support a USA based Father/Son Business! Anti-theft hitch pin - solid forged Steel Ensures Protection to Your Trailer & Hitch From Theft. Patent pending design - newly Added Weatherproof Slide Cap Protects From Dirt, Mud & Gunk.Brand | Rhino USA #ad |
Manufacturer | Rhino USA, Inc. #ad |
Part Number | HITCHPIN-P |
Model | HITCHPIN-P |
Warranty | Unlimited Lifetime Warranty Included |
More information #ad
9. Proven Industries
#ad
Made in The USA, Fits 2 5/16-Inch Couplers, Proven Industries Model 2516 Trailer Lock, Black, Secures Safety Chains
#adProven Industries #ad - Proven industries: we are dedicated to providing our customers with the most effective trailer locks on the market. 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.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.
More information #ad
Custom trailer-coupler lock: this custom-tailored lock will only mount on very specific 2 5/16-inch couplers. Unique key design: our trailer lock has a special key design that prevents anyone from picking the lock. We carefully research and manufacture our locking systems from conception to fabrication in the USA. 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. Our strong coupler lock fits select 2 5/16-inch trailer couplers to help keep your trailer secure.
Brand | Proven Industries #ad |
Manufacturer | Proven Locks #ad |
Weight | 10 Pounds |
Part Number | 2516 |
Model | 2516 |
More information #ad
10. Rhino USA
#ad
Reinforced Solid Steel for Ultimate Peace of Mind!, RV, Rhino USA Trailer Hitch Coupler Lock Kit Includes 2" & 1/4" Couplers Heavy Duty Anti-Theft Tongue Locks for Boat, Travel Trailers & More
#adRhino USA #ad - 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. Fits most 2 inch couplers - maximum coupler Lip Width 3-3/4" Maximum Coupler Lip Height is 3/8".More information #ad
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.Brand | Rhino USA #ad |
Manufacturer | Rhino USA #ad |
Height | 5 Inches |
Length | 5 Inches |
Width | 5 Inches |
Part Number | TRL-LOCK-KIT |
More information #ad