Top 9 Collar Lock Trailer coupler – Towing Hitch Locks

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1. Ft. Knox Locks

#ad

Bulldog Sliding Collar Coupler Lock Includes Cobra-Sidewinder puck lock- BOLT CUTTER PROOF!!!

#adFt. Knox Locks #ad - High security Cobra Sidewinder Aluminum puck lock. Ultra high security ONLY fits the Bulldog sliding collar coupler pictured. All welded steel construction. Bright yellow powder coat finish. Bolt cutter Proof.

Brand	Ft. Knox Locks #ad
Manufacturer	Ft. Knox Locks #ad
Height	4.25 Inches
Length	6.5 Inches
Weight	7.5 Pounds
Width	4 Inches
Part Number	5KP-B
Model	5KP-B

2. Ft. Knox Locks

#ad

Bulldog Sliding Collar Coupler Lock, Ultra High Security, BOLT CUTTER PROOF!!!

#adFt. Knox Locks #ad - Ultra high security and fits ONLY the Bulldog sliding collar coupler pictured. Accepts most "puck" style locks not included. All welded steel construction. Bright yellow powder coat finish. Bolt cutter Proof.

Brand	Ft. Knox Locks #ad
Manufacturer	Ft. Knox Locks #ad
Height	4.25 Inches
Length	6.5 Inches
Weight	7.5 Pounds
Width	4 Inches
Part Number	5KP-B
Model	5KP-B

3. CURT

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2-Inch Hitch Ball, CURT 25217 Black A-Frame Trailer Coupler, 7,000 lbs

#adCURT #ad - Constructed from high-strength steel with a solid steel neck, this trailer ball coupler is rated as a class 4 trailer coupler and has a capacity of 7, 000 lbs. To easily outlast the elements, road grime and more, snow, including rain, dirt, this A-frame tongue trailer coupler is finished in a durable black powder coat and makes a great boat trailer coupler.

Corrosion-resistant. The sleeve-lock latch mechanism of this trailer tongue coupler fully encompasses the trailer ball when coupled, providing maximum security and safety for towing. This trailer coupler is designed to mount onto an A-frame trailer tongue and couple to any standard 2-inch diameter trailer ball.

The sleeve-lock latch accepts a safety pin or coupler lock that passes completely through the neck of the coupler, ensuring maximum security for heavy-duty loads. Enhanced security. Precise fit. High-strength. Gross trailer weight and 1, 050 lbs. Secure coupling. Tongue weight.

Brand	CURT #ad
Manufacturer	Curt Manufacturing #ad
Height	5 Inches
Length	16 Inches
Weight	13.3 Pounds
Width	11 Inches
Part Number	25217
Model	25217
Warranty	Limited Lifetime Warranty (One-Year Finish, One-Year Parts)

4. Proven Industries

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Made in the USA, Fits 2 5/16-Inch Couplers, Proven Industries Model 2516 Trailer Lock, Blue

#adProven Industries #ad - Tough lock: the locking parts on this device are constructed from hardened steel for increased security, hammers, and the exterior cover is tough enough to stop burglars from using power tools, and crowbars on your lock. Our strong coupler lock fits select 2 5/16-inch trailer couplers to help keep your trailer secure.

Heavy-duty trailer lock: it’s important to do everything you can to protect your belongings and your trailer or camper from being stolen. Custom trailer-coupler lock: this custom-tailored lock will only mount on very specific 2 5/16-inch couplers. 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.

This innovative key system also features an interior locking mechanism that stops would-be thieves from making a copy of your key. Unique key design: our trailer lock has a special key design that prevents anyone from picking the lock. Proven industries: we are dedicated to providing our customers with the most effective trailer locks on the market.

Brand	Proven Industries #ad
Manufacturer	Proven Locks #ad
Weight	10 Pounds
Part Number	2516

5. Master Lock

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Universal Size Fits 1-7/8", and 2-5/16" Couplers, Trailer Locks #389DAT, 2", Master Lock

#adMaster Lock #ad - The bright red finish discourages thiefs from messing with your trailer. Resists rust and corrosion. Advanced locking mechanism resists picking and prying. Universal coupler lock fits virtually all 1-7/8", 2", and 2-5/16" trailer couplers. Simple installation and removal. This lock protects unattended trailers and guards against tow-away theft.

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.

6. CZC AUTO

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Dia 1/4 Inch, 2-1/2 Inch Span Fits Latch-Type Coupler for Towing Boat Truck RV Car Trailer, CZC AUTO Trailer Tongue Coupler Lock

#adCZC AUTO #ad - Czc auto - reliable brand in towing sercurity industry. Easy to operate coupler latch lock. Made of high-strength steel and coated with black electrophoretic paint, the 1/4 inch trailer coupler lock is good at detering theft and preventing corrosion.

We offer 30-day money-back for any reason, simply contact us, 12-month warranty for quality-related issues. Our 1/4 inch trailer tongue lock push-to-lock design without key, after hearing "click", you just need to pull the lock head to ensure it is working. Kinds of weather can be handled. 1/4 inch diameter black tongue lock pin with 2-1/2 inch effective length. Zinc alloy tubular lock core and more solid round key also help to improve security of the black coupler lock.

Czc auto trailer hitch coupler locking pin's design. Security of our coupler locking pin. Application of the 1/4 trailer pin lock. 1/4 turn the key to open the coupler pin lock, the pin will pops-up automatically and comfortably. Please verify the size before purchasing our trailer hitch coupler pin lock 1/4 inch. Any issue in using our trailer hitch coupler lock, your problem will be solved within 24 HOURS. The watertight rubber cap keeps rain, snow, ice and dirt out.

Brand	CZC AUTO #ad
Manufacturer	CZC AUTO #ad
Part Number	11406

7. Trimax

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Black, Trimax UMAX100 Premium Universal Dual Purpose Coupler Lock

#adTrimax #ad - Rugged and durable, 7 pin, the key will not bend or break. Crafted from the highest quality material. One size fits all from 1-7/8", 2", to 2-5/16", all coupler types. Resists attempted drill outs. Weighs 6 pounds. Type a key which is a spring loaded, high security key. Key hole cover slides up to seal out dirt and grime. Made in China. Attractive ballistic grade nylon housing absorbs hammer blows and protects against weather. Perfect for outdoor and even indoor use.

Brand	Trimax #ad
Manufacturer	Trimax Locks - Wyers Products #ad
Height	13 Inches
Length	17 Inches
Weight	1 Pounds
Width	13 Inches
Part Number	UMAX100
Model	UMAX100
Warranty	Manufacturer Warranty

8. Blaylock Trailer Products

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Blaylock American Metal TL-20 Coupler Lock

#adBlaylock Trailer Products #ad - Fits hammer blow, Bulldog & RAM. Solid hardened steel lock rod for security. Fits couplers 17/8-25/16". Patented design ensures the most secure way to leave an unattended trailer. For commercial and recreational use.

Brand	Blaylock Trailer Products #ad
Manufacturer	Blaylock #ad
Height	1.6 Inches
Length	6.6 Inches
Weight	2.94 Pounds
Width	4.6 Inches
Part Number	TL-20
Model	TL-20

9. Ft. Knox Locks

#ad

Includes Trimax puck lock- BOLT CUTTER PROOF!!!, Ram Coupler Lock, Fits ONLY RAM coupler

#adFt. Knox Locks #ad - Fits only the ram sliding collar coupler pictured. Bolt cutter Proof. If your coupler doesn't match the coupler pictured - DON'T BUY! High security trimax puck lock. Ultra high security.

Brand	Ft. Knox Locks #ad
Manufacturer	Ft. Knox Locks #ad
Height	4.25 Inches
Length	6.5 Inches
Weight	7.5 Pounds
Width	4 Inches
Part Number	RAM-1
Model	RAM-1