Top 9 Coupler Latch Lock – Towing Hitch Locks

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1. Master Lock


Stainless Steel Adjustable Coupler Latch Lock, Master Lock Trailer Lock, 2847DAT

Master Lock #ad - Specifications: coupler lock adjusts from 9/16 in. Includes: one trailer coupler latch lock, two keys. Length. To 2-3/4 in. Ease of use: six locking positions provide maximum flexibility; Rekeyable cylinder offers keyed-alike convenience. Lock application: Best used for vehicles, trailers, and RV hitch locks. Durable design: Water-tight cap protects trailer hitch lock from moisture and dirt.
BrandMaster Lock #ad
Height1 Inches
Length6.8 Inches
Weight0.25 Pounds
Width4 Inches
Part Number2847DAT
WarrantyLimited Warranty

2. Master Lock


3-4/10" Long Shackle x 9/32" Diameter Pin, Master Lock 1471DAT Trailer Coupler Latch Lock

Master Lock #ad - Fits ufp and surge brake couplers. This master lock protects and guards against tow-away theft. Weather tough seal and water tight cap protects the lock from the elements.

Pin length or dimensional fit is 3-1/2" wide with a 9/32" diameter pin which is a standard size on virtually all couplers. The lock prevents the coupler latch from moving, therefore preventing either the coupler to be removed from the ball, or not allowing a ball to be placed into the coupler. Chrome plated for improved wear and corrosion resistance. The lock works when the trailer is either connected to the tow vehicle or when the trailer is unattached. K1 key blank. It has a precision 4 pin tumbler mechanism that resists picking.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height2 Inches
Length9.1 Inches
Weight0.75 Pounds
Width5 Inches
Part Number1471DAT
Warranty2 year manufacturer



1/4-Inch Pin Diameter, CURT 23521 Black Trailer Tongue Coupler Lock, Up to 3/4-Inch Span

CURT #ad - For your convenience, two keys are included with this trailer tongue lock. 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.

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. 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. Versatile. Two keys included. To help protect your trailer from theft, this trailer lock is made from high-strength steel and has a padlock-style design. Fit type: Universal Fit. Easy to operate. Dependable security. You can keep the spare key in a discrete location for emergencies or give it to a friend for helpful access.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight0.45 Pounds
Width2 Inches
Part Number23521
WarrantyLimited Lifetime Warranty (One-Year Finish, One-Year Parts)

4. Master Lock


2" Body Width, Master Lock 605DAT Shackle 15/16" Length x 7/16" Inner Width, Gold, Solid Brass Coupler Lock

Master Lock #ad - Case hardened steel shackle. Lock design protects shackle from cutting and sawing. Precision pin tumbler mechanism resists picking. Solid brass body. Measures 2 inches. Solid brass coupler latch lock with 3/4in 19mm shackle. Note: measure your door's backset, cross bore and thickness to ensure you find the right fit. Resists rust and corrosion. Precision pin tumbler mechanism for superior pick resistance.
BrandMaster Lock #ad
ManufacturerMini-Mule #ad
Height2.17 Inches
Length0.47 Inches
Weight0.44 Pounds
Width1.38 Inches
Part Number470-605DAT

5. Cenipar


Trailer Hitch Coupler Locking Pin 1/4 Inch Diameter 2-1/2 Inch Long for Truck Car and Boat Fits Class III IV Hitches Cenipar Towing Locks

Cenipar #ad - 30 days warranty :30 days warranty⭐risk-free shopping⭐ if you have any question, please don't hesitate to contact us. We will try our best to satisfy every customer. Please verify dimension and length of the pin you want before purchasing our coupler hitch lock pin.

Package include:lock pin*1 1/4 inch diameter 2-1/2 inch long + lock head*1 361°rotating design& water proof rubber cap + tubular keys*2 one for standby Please check your size before buying. Easy to operate:this trailer hitch lock is easy operationIt, can be opened just like opening the door by turning the key. Our push-to-lock design, You can easily lock it without key. The trailer hitch coupler lock provides customers a safe and Convenient environment. Effective theft prevention : hitch receiver pin lock is made with high-strength steel construction have Reliable safety for Towing Boat Truck RV Car Trailer Fits Class III IV Hitches, at the same time locking pin Able to avoid theft of your truck and the things hanging on the truck.

Improve security of your cargo and provide you a safer journey. Waterproof & corrosion function:the black trailer coupler lock is made of high-strength carbon steel coated with black electrophoretic paint. The trailer hitch lock is durable and rust free. To prevent corrosion in all weathers.
BrandCenipar #ad
ManufacturerCenipar #ad
Height1.57 Inches
Length1.57 Inches
Width7.09 Inches
Part Number0.25in long hitch pin-1
Model0.25in long hitch pin-1

6. InfiniteRule Security


EZ Latch Coupler, 2", InfiniteRule Security 61121 | Trailer Coupler Latch Lock, 1/4" Dia. 2-15/16" Span Fits: DEMCO

InfiniteRule Security #ad - 2-15/16" span fits: demco - ez latch Coupler - 2". Product fitment: demco - EZ Latch Coupler - 2". Mixed packs include an additional product intended to work with your vehicle’s receiver.

Important message!!! infiniterule products are intended to fit specific applications. Made in the usa by InfiniteRule Security, Inc. Weatherproof cap protects the keyhole by keeping water, grime, and dirt out of the locking mechanism to ensure years of use. Size may be different than the other products in package. 61121 | trailer coupler latch lock, 1/4" dia. Please read product fitments listed below to verify SPAN and DIAMETER will fit your application before ordering. Constructed from Stainless Steel, for reliability.
BrandInfiniteRule Security #ad
ManufacturerInfiniteRule Security #ad
Part Number61121

7. Master Lock


Receiver Lock and Latch Lock, Coupler Lock, 3 Components Keyed Alike, Master Lock 3895DAT

Master Lock #ad - The limited lifetime Warranty provides peace of mind from a brand you can trust. For more detailed information, please click "See More Product Details". Complete trailer security system KEYED ALIKE. 1 coupler lock, 1 receiver lock & 1 latch lock all keyed alike; 1 key opens all 3 locks. This lock set can not be keyed alike with other locks nor can 2 of these lock sets be keyed alike.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height3.5 Inches
Length9 Inches
Width6.25 Inches
Part Number3895DAT
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.



Black, 3/4 Inch Span for Tow Boat RV Truck Car's Coupler 1 Pack, CZC AUTO Black Trailer Hitch Coupler Lock, Dia 1/4 Inch

CZC AUTO #ad - Security of our coupler locking pin: this trailer lock is made of high-strength steel to deter theft. How to operate our trailer tongue Coupler Lock: Spinning the flat key 5-7 times to open or close the hitch lock.

Czc auto trailer hitch coupler locking pin design:1/4 inch diameter tongue lock pin with effective length 3/4 Inch. Keeping the coupler lock in your pocket or vehicle anywhere that is fine. Coupler locking hitch pin's Application: Tow Trailer Boat RV Truck Car. Please verify dimension and length of the pin you want before purchasing our coupler hitch lock pin. Small size for easy carrying. The hitch lock is coated with black electrophoretic paint to prevent corrosion. Czc auto, a reliable brand in hitch sercurity Industry, we offer 30-day money-back for any reason, 12-month warranty for quality-related issues.
BrandCZC AUTO #ad
ManufacturerCZC AUTO #ad
Part Number11410

9. Master Lock


Master Lock 2848DAT Key Alike Set with Receiver and Coupler Latch Locks, 2-Piece Set

Master Lock #ad - Durable design: weather Tough seal and watertight cap provide protection from moisture and dirt. Specifications: usable length of receiver pin is 2-3/4 in. Stainless steel lock fits 1/2 in. And 5/8 in. Receiver openings. Ease of use: receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key. Includes: one receiver lock, one stainless steel coupler latch lock, two keys; both keys open both locks. Lock application: Best used for vehicles, trailers, and RV hitch locks.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height4.2 Inches
Length1.7 Inches
Weight1.12 Pounds
Width8 Inches
Part Number57-7546
WarrantyLimited Manufacturer