Top 10 Coupler Latch Lock Set – Towing Hitch Locks

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1. Master Lock

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

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Master Lock #ad - Specifications: usable length of receiver pin is 2-3/4 in. Stainless steel lock fits 1/2 in. Ease of use: receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key. Receiver openings. Lock application: Best used for vehicles, trailers, and RV hitch locks. Durable design: weather Tough seal and watertight cap provide protection from moisture and dirt. Includes: one receiver lock, one stainless steel coupler latch lock, two keys; both keys open both locks. And 5/8 in.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height1.41 Inches
Length8.56 Inches
Weight1.12 Pounds
Width4.88 Inches
Part Number57-7546
Model2848DAT
WarrantyLimited Manufacturer

2. Master Lock

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Master Lock 1481DAT Stainless Steel Barbell Receiver and Adjustable Coupler Lock Set

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Master Lock #ad - 5/8 inch receiver lock has Push to Lock locking mechanism push lock body onto pin firmly and remove key. Weather tough seal and water tight cap protects lock from moisture. Stainless steel keyed alike receiver lock and coupler latch lock. Usable length of receiver pin is 2-3/4 inch. Adjustable coupler latch lock, locks from 9/16 inch to 2-3/4 inch.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height8.88 Inches
Length7 Inches
Weight2 Pounds
Width5.75 Inches
Part Number1481DATSC
Model1481DATSC

3. CURT

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

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CURT #ad - Versatile. 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.

Dependable security. 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. Easy to operate. 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. 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. To help protect your trailer from theft, this trailer lock is made from high-strength steel and has a padlock-style design.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight0.45 Pounds
Width2 Inches
Part Number23521
Model23521
WarrantyLimited Lifetime Warranty (One-Year Finish, One-Year Parts)

4. Master Lock

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

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Master Lock #ad - Chrome plated for improved wear and corrosion resistance. This master lock protects and guards against tow-away theft. K1 key blank. 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.

The lock works when the trailer is either connected to the tow vehicle or when the trailer is unattached. It has a precision 4 pin tumbler mechanism that resists picking. Fits ufp and surge brake couplers. 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.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height2 Inches
Length9.1 Inches
Weight0.75 Pounds
Width5 Inches
Part Number1471DAT
Model1471DAT
Warranty2 year manufacturer

5. CURT

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CURT 23527 Trailer Lock Set for 2-Inch Receiver, 2-1/2-Inch Coupler Latch Span

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CURT #ad - Dependable strength. It includes a trailer hitch lock for locking a ball mount or other receiver hitch accessory, as well as a coupler lock for securing your trailer coupler. With a 5/8-inch diameter pin, the receiver hitch lock fits virtually any 2-inch hitch receiver with a 5/8-inch hole.

The trailer locks in this set feature a simple 1/4-turn lock activation for fast locking and unlocking as needed. The locks are also keyed alike for convenient, one-key access four keys included. Complete security. Convenient. Watertight. The internal components of the hitch lock and trailer coupler lock can be easily protected from the elements with the included watertight dust caps.

To protect your equipment from theft and give you peace of mind, the hitch lock and trailer coupler lock are made with high-strength steel construction. The coupler latch lock has a 1/4-inch pin and fits a coupler span up to 2-1/2 inches. Versatile. This trailer lock set offers comprehensive security of your towing system.
BrandCURT #ad
ManufacturerCURT #ad
Height1 Inches
Length8.75 Inches
Weight1.18 Pounds
Width2.88 Inches
Part Number23527
Model23527
WarrantyLimited Lifetime

6. Master Lock

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

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Master Lock #ad - The limited lifetime Warranty provides peace of mind from a brand you can trust. This lock set can not be keyed alike with other locks nor can 2 of these lock sets be keyed alike. Complete trailer security system KEYED ALIKE. For more detailed information, please click "See More Product Details". 1 coupler lock, 1 receiver lock & 1 latch lock all keyed alike; 1 key opens all 3 locks.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height3.5 Inches
Length9 Inches
Width6.25 Inches
Part Number3895DAT
Model3895DAT
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 www.masterlock.com or 1.800.464.2088 for instructions on obtaining repair or replacement.

7. CZC AUTO

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CZC AUTO Hitch Lock Set Dia 5/8 Inch Trailer Hitch Receiver Pin Lock Keyed Alike for Class III IV 2" and 2-1/2" Receiver Dia 1/4 Inch Hitch Coupler Lock with 2-1/2 Inch Span Fit Latch-Type Couplers

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CZC AUTO #ad - Czc auto - reliable brand in hitch locks industry. Zinc alloy tubular lock core and more solid round key also help to improve security of the hitch locking pin. Hitch rack, cargo hitch tray, hitch ball and tow rope, bike rack, perfect for 2" and 2-1/2" receivers and latch-type couplers for towing purpose like trailer truck RV car boat.

3. When unlocking, pin will pops-up automatically. Easy to operate 5/8 inch hitch lock pin & 1/4 inch trailer pin lock. 4 keys in total, KEYED ALIKE. Please verify the size before purchasing czc auto trailer receiver lock set. Dogbone style hitch receiver lock : dia 5/8 inch pin with 3-1/2" effective length, perfect for Class III/IV 2", 2-1/2" hitch receiver tubes.

Universal application of czc auto hitch pin lock kit. After hearing "click", 1/4 turn the key, pull the lock head to ensure it is working. We offer 30-day money-back for any reason, simply contact us, 12-month warranty for quality-related issues. Trailer hitch coupler locking pin: dia 1/4 inch black tongue lock pin fits latch-type couplers with a max span up to 2-1/2 inch. New lock way: 1. Security of 5/8 inch towing hitch lock & 1/4 inch coupler locking pin.
BrandCZC AUTO #ad
ManufacturerCZC AUTO #ad
Part Number11208F

8. Master Lock

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Master Lock 1669DAT, 5/8in 16mm Stainless Steel Barbell Extended Length Receiver Lock with SS Adjustable Coupler Latch Lock Keyed Alike

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Master Lock #ad - Coupler latch lock's shaft is ergonomically designed to aid installation. Weather tough seal protects lock from moisture and dirt. Adjustable coupler latch lock fits widths from 9/16in 14mm to 2-3/4in 70mm.

Specifications: 5/8in 16mm heavy-duty ss diameter receiver pin fits 2 inch 508mm receiver tubes that have reinforcement plates welded on the sides of the tube - total width is generally 2-1/2". Receiver lock's solid brass cylinder and aluminum case offer extreme corrosion resistance. Ease of use: receiver lock has push to lock locking mechanism, simply push the lock body onto pin firmly and remove key.

Usable length of receiver pin is 3-1/2in 88mm. Attention: this lock set comes prepackaged keyed alike and can not be matched/keyed with other locks nor can two of these locks sets be keyed alike. This listing is for 1 stainless steel barbell extended receiver lock and 1 stainless steel adjustable coupler latch, keyed alike same key unlocks both locks.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height1.5 Inches
Length8 Inches
Weight1.14 Pounds
Width4.12 Inches
Part Number1669DAT
Model1669DAT
WarrantyLimited 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.

9. Master Lock

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Red, Trailer Coupler & Receiver Lock Combo Pack, 3794DAT , Master Lock Trailer Lock

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Master Lock #ad - Couplers. Includes: one trailer coupler lock, one receiver lock, one trailer coupler latch lock; two keys both keys open all three locks. Ease of use: receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key. Lock application: Best used for vehicles, trailers, and RV hitch locks. Specifications: stainless steel trailer coupler lock adjusts from 9/16 in. And most 2-5/16 in. Durable design: weather Tough seal and watertight cap provide protection from moisture and dirt. To 2-3/4 in. Fits 1-7/8 in. 2 in.
BrandMaster Lock #ad
ManufacturerMASTER LOCK #ad
Height4 Inches
Length10 Inches
Weight1 Pounds
Width5 Inches
Part Number3794DAT
Model3794DAT
Warranty1 year manufacturer

10. CURT

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CURT 23526 Trailer Lock Set for 2-Inch Receiver, 7/8-Inch Coupler Latch Span

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CURT #ad - The coupler latch lock has a 1/4-inch pin and fits a coupler span up to 2-1/2 inches. Convenient. Complete security. This trailer lock set offers comprehensive security of your towing system. The internal components of the hitch lock and trailer coupler lock can be easily protected from the elements with the included watertight dust caps.

The trailer locks in this set feature a simple 1/4-turn lock activation for fast locking and unlocking as needed. The locks are also keyed alike for convenient, one-key access four keys included. With a 5/8-inch diameter pin, the receiver hitch lock fits virtually any 2-inch hitch receiver with a 5/8-inch hole.

Versatile. Watertight. It includes a trailer hitch lock for locking a ball mount or other receiver hitch accessory, as well as a coupler lock for securing your trailer coupler. To protect your equipment from theft and give you peace of mind, the hitch lock and trailer coupler lock are made with high-strength steel construction. Dependable strength.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight1.15 Pounds
Width2 Inches
Part Number23526
Model23526
WarrantyLimited 1-year Warranty