Best Trailer Lock Security

Master Lock - 6 Trailer Locks Keyed Alike 6KA-37937-3

Total trailer security Keyed Alike - One key opens all six locks.Keyed Alike - One key opens all six locks..
Each lock comes with two keys, for a total of twelve keys..
Latch Lock - The #3 padlock will work on 2-5/16 couplers and the smaller 1-7/8 and 2"..
Total Trailer Security. Simple installation and removal..
Coupler lock fits 1-7/8", 2" & 2-5/16" couplers..

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.

PRECISE FIT. This trailer coupler is designed to mount onto an A-frame trailer tongue 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.
SECURE COUPLING. The easy-lock latch mechanism of this trailer tongue coupler accepts a safety pin or coupler lock for enhanced security.
HIGH-STRENGTH. Constructed from punched, die-cut steel, this trailer ball coupler is rated as a class 4 trailer coupler and has a capacity of 10,000 lbs. gross trailer weight and 1,500 lbs. tongue weight.
CORROSION-RESISTANT. To easily outlast the elements, including rain, snow, dirt, road grime and more, this A-frame tongue trailer coupler is finished in a durable black powder coat and makes a great boat trailer coupler.

In Stock with a delivery time of 1 to 5 business days. Total trailer security Keyed Alike - One key opens all six locks..
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..
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-37937-3.
Each lock comes with two keys, for a total of twelve keys..
Coupler lock fits 1-7/8", 2" & 2-5/16" couplers..

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.
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.
SECURE COUPLING. The posi-lock latch mechanism of this trailer tongue coupler accepts a safety pin or coupler lock for enhanced security.
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.
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.

PRECISE FIT. This trailer coupler is designed to mount onto a 2-inch wide trailer tongue beam and couple to any standard 1-7/8-inch diameter trailer ball.
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.
SECURE COUPLING. The posi-lock latch mechanism of this trailer tongue coupler accepts a safety pin or coupler lock for enhanced security.
HIGH-STRENGTH. Constructed from punched, die-cut steel, this trailer ball coupler is rated as a class 1 trailer coupler and has a capacity of 2,000 lbs. gross trailer weight and 200 lbs. tongue weight.
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.

PRECISE FIT. This trailer coupler is designed to mount onto a 2-inch wide trailer tongue beam and couple to any standard 2-inch diameter trailer ball.
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.
SECURE COUPLING. The posi-lock latch mechanism of this trailer tongue coupler accepts a safety pin or coupler lock for enhanced security.
HIGH-STRENGTH. Constructed from punched, die-cut steel, this trailer ball coupler is rated as a class 2 trailer coupler and has a capacity of 3,500 lbs. gross trailer weight and 500 lbs. tongue weight.
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.

PRECISE FIT. This trailer coupler is designed to mount onto a 2-inch wide trailer tongue beam and couple to any standard 2-inch diameter trailer ball.
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.
SECURE COUPLING. The posi-lock latch mechanism of this trailer tongue coupler accepts a safety pin or coupler lock for enhanced security.
HIGH-STRENGTH. Constructed from punched, die-cut steel, this trailer ball coupler is rated as a class 2 trailer coupler and has a capacity of 3,500 lbs. gross trailer weight and 500 lbs. tongue weight.
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.

【Locking hitch pin】 fits 1/2 in. (13 mm) and 5/8 in. (16 mm) receivers.
usable length of each chrome hitch pin lock is 2-3/4 in. (70 mm).
【1/2 in.】 trailer hitch locking pin is rated up to 3,500 lbs (Class I and II), 5/8 in. trailer hitch locking pin is rated up to 10,000 lbs (Class III and IV).
【Locking head】 rotates 360 degrees allowing keyway to conveniently face forward.
receiver lock features push-to-lock locking mechanism to ensure a secure lock every time.
Push head firmly onto the pin and remove key.
【Snap-on cover】 provides weather resistance and prevents dirt and moisture from entering keyway, four-pin cylinder for added security to prevent lock picking.
【Receiver lock】 provides added security and theft deterrence while towing. Included Components: Two Pins Two Keys One Locking Swivel Head.