ReviewsTrailer Coupler Lock

Master Lock 377KA Trailer Hitch Lock, Fits 1-7/8 in., 2 in., and Most 2-5/16 in. Trailer Couplers

  • 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.
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NenNicht Trailer Lock Fits 2 5/16-Inch Couplers, [2023 New Patented Design] Anti Theft Heavy-Duty Steel Trailer Hitch Locks, Trailer Coupler Lock with a Hook for Secures Safety Chains (Black)

  • [TOUGH TRAILER LOCKS BALL HITCH] The trailer lock is made of 0.24-INCH alloy steel with strong cut and shear resistance. It can stop burglars from picking your locks with power tools, hammers, and crowbars. It is important to do everything possible to protect your belongings and your trailer or camper from being stolen..
  • [CUSTOM 2 5/16" TRAILER COUPLER LOCK] This trailer lock will only fit on the 2 5/16" couplers with flat lip. Be sure to check the coupler sizes compatible with our lock hardware to ensure the lock you choose will match your trailer coupler..
  • [TRAILER LOCK WITH HOOK] NenNicht US was the first in the industry to add additional hook functionality to both sides of the trailer lock. The hooks can carry up to 110 lbs. On both sides of the trailer lock to hang the safety chain, which prevents the safety chain from falling on the ground and getting wet and rusted..
  • [RESISTS RUST] The hitch lock is finished with a durable powder coat finish to resist rust, corrosion, and weathering, suitable for all climates..
  • [UNIQUE KEY DESIGN] Each NenNicht US trailer lock come....
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Blue Tongues Don't Lie

  • EASILY ADJUSTABLE. Designed to mount onto a vertical channel bracket, this trailer hitch coupler can easily be adjusted up or down to ensure level towing across your vehicle and trailer (CURT channels #48610 and #48650 recommended, sold separately).
  • PRECISE FIT. This trailer coupler can be mounted on a wide variety of heavy-duty trailers and couple to any standard 2-5/16-inch diameter trailer ball.
  • EASY OPERATION. Equipped with an easy-lock latch mechanism, this trailer hitch coupler is quick and simple to operate and offers a snug fit on the trailer ball.
  • HIGH-STRENGTH. Constructed from heavy-duty cast steel, this trailer ball coupler has a capacity of 15,000 lbs. gross trailer weight and 2,250 lbs. tongue weight.
  • CORROSION-RESISTANT. To easily outlast the elements, including rain, snow, dirt, road grime and more, this adjustable trailer coupler is finished in a durable black powder coat.
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Husky 87084 2\ 5,000 lbs. Coupler Repair Kit , Grey

  • EASILY ADJUSTABLE. Designed to mount onto a vertical channel bracket, this trailer hitch coupler can easily be adjusted up or down to ensure level towing across your vehicle and trailer (CURT channels #48610 and #48650 recommended, sold separately).
  • SECURE COUPLING. The sleeve-lock latch mechanism of this trailer tongue coupler fully encompasses the trailer ball when coupled, providing maximum security and safety for towing.
  • PRECISE FIT. This trailer coupler can be mounted on a wide variety of heavy-duty trailers and couple to any standard 2-inch diameter trailer ball.
  • HIGH-STRENGTH. Constructed from heavy-duty cast steel, this trailer ball coupler has a capacity of 7,000 lbs. gross trailer weight and 1,050 lbs. tongue weight.
  • CORROSION-RESISTANT. To easily outlast the elements, including rain, snow, dirt, road grime and more, this adjustable trailer coupler is finished in a durable black powder coat.
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Fulton 34300 0301 Trailer Coupler, Class III 5000 lbs. Rating

  • EASILY ADJUSTABLE. Designed to mount onto a vertical channel bracket, this trailer hitch coupler can easily be adjusted up or down to ensure level towing across your vehicle and trailer (CURT channels #48610 and #48650 recommended, sold separately).
  • PRECISE FIT. This trailer coupler can be mounted on a wide variety of heavy-duty trailers and couple to any standard 2-5/16-inch diameter trailer ball.
  • EASY OPERATION. Equipped with an easy-lock latch mechanism, this trailer hitch coupler is quick and simple to operate and offers a snug fit on the trailer ball.
  • HIGH-STRENGTH. Constructed from heavy-duty cast steel, this trailer ball coupler has a capacity of 14,000 lbs. gross trailer weight and 2,100 lbs. tongue weight.
  • CORROSION-RESISTANT. To easily outlast the elements, including rain, snow, dirt, road grime and more, this adjustable trailer coupler is finished in a durable black powder coat.
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CURT 25329 Channel-Mount Adjustable Trailer Coupler, 2-5/16-Inch Hitch Ball, 12,500 lbs

  • EASILY ADJUSTABLE. Designed to mount onto a vertical channel bracket, this trailer hitch coupler can easily be adjusted up or down to ensure level towing across your vehicle and trailer (CURT channels #48610 and #48650 recommended, sold separately).
  • SECURE COUPLING. The sleeve-lock latch mechanism of this trailer tongue coupler fully encompasses the trailer ball when coupled, providing maximum security and safety for towing.
  • PRECISE FIT. This trailer coupler can be mounted on a wide variety of heavy-duty trailers and couple to any standard 2-5/16-inch diameter trailer ball.
  • HIGH-STRENGTH. Constructed from heavy-duty cast steel, this trailer ball coupler has a capacity of 12,500 lbs. gross trailer weight and 1,875 lbs. tongue weight.
  • CORROSION-RESISTANT. To easily outlast the elements, including rain, snow, dirt, road grime and more, this adjustable trailer coupler is finished in a durable black powder coat.
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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.
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YEOPGYEON Coupler Latch Fits 1-7/8\ x 2\ Trailer Coupler 2000 lbs

  • Replaces coupler latch in CURT posi-lock couplers for 2-inch trailer balls (coupler sold separately).
  • Fits couplers with 2-inch, 2-1/2-inch or 3-inch channel widths (trailer tongue width).
  • Spring and nut posi-lock mechanism allows for easy adjustment.
  • Features holes to accept a safety pin or coupler lock.
  • Constructed from high-strength steel and protected by a durable zinc-plated finish.
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Master Lock - 5 Trailer Locks Keyed Alike #5KA-37940-37

  • Total Trailer Security Keyed Alike - One key opens all five locks. Each lock comes with two keys, for a total of ten keys..
  • Multiple 5KA trailer lock packages CAN be keyed alike. If you ordered a quanity of 2, 3 etc we would automatically key them all the same..
  • Round padlocks 2-3/4" (70mm) wide laminated stainless steel body resists corrosion..
  • Latch lock doesn't fit some 2-5/16" couplers. See description below for latch lock (model 37KABLK) applications. For 2-5/16 couplers the better lock set is: Master Lock - 5 Trailer Locks Keyed Alike 5KA-37940-3.
  • Coupler lock fits 1-7/8", 2" & 2-5/16" couplers. See the description below for the majority of coupler manufacturers this lock will fit..
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Master Lock - 3 Keyed Alike Universal Trailer Coupler Locks 379KA-3

  • In Stock with a delivery time of 1 to 5 days. This is a set of 3 Keyed Alike trailer coupler/tongue locks and is ideal when needing multiple locks....
  • These locks protects unattended trailers and guards against tow-away theft. The universal trailer coupler lock fits 1-7/8in (48mm), 2in (51mm) and....
  • This simple design is difficult to defeat because when it's locked on the trailer the lock rests on top of the coupler (see image) thus thwarting....
  • Rekeyable cylinder for keyed alike convenience with an advanced locking mechanism that resists picking and prying. Each lock weighs 2.4 lbs. and is....
  • Made with Reinforced Zinc Die-Cast resists rust and corrosion. Few materials provide the strength and toughness of zinc alloys. Impact resistance is....
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Master Lock - 6 Trailer Locks Keyed Alike #6KA-3796230-37

  • Total trailer security Keyed Alike - One key opens all six locks. Each lock comes with two keys, for a total of twelve keys..
  • Multiple 6KA trailer lock packages CAN be keyed alike. If you ordered a quanity of 2, 3 etc we would automatically key them all the same. See RECEIVER LOCK options in the description below..
  • Latch lock doesn't fit some 2-5/16" couplers. See description below for latch lock (#37) applications. For 2-5/16 couplers the better lock set is: Master Lock - 6 Trailer Locks Keyed Alike #6KA-3796230-3..
  • Three (3) high security 6230KA padlocks featuring a 5-pin cylinder and boron alloy hardened shackle. Please see images for padlock dimensions..
  • Coupler lock fits 1-7/8", 2", & 2-5/16" couplers. See the description below for the majority of coupler manufacturers this lock will fit..
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