Top 9 Bulldog Lifelong Trailer Hitch Receiver Lock – Towing Hitch Locks

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1. Fulton

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Bulldog 580404 Chrome Universal Chrome 5/8" Trailer Dogbone/Coupler Lock Set

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Fulton #ad - Bulldog lifelong locks feature stronger break resistance, a dual self-locking design, and a high security square key design. Ball bearing locking mechanism; dust cap protects lock mechanism from the elements. Highly polished chrome plated lock components are strong yet attractive - strength doesn't have to be ugly. Set includes class iii/iv 5/8 inch chrome Dogbone lock and chrome coupler lock; keyed alike; comes with 2 keys.
BrandFulton #ad
ManufacturerBulldog #ad
Height0.8 Inches
Length9 Inches
Weight0.43 Pounds
Width4 Inches
Part Number580404
Model580404

2. Draw-Tite

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Bulldog 580412 Stainless Steel Universal Stainless Steel 5/8" Trailer Dogbone Lock for 2-1/2" Sq. Class V Receivers

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Draw-Tite #ad - Bulldog lifelong locks feature stronger break resistance, a dual self-locking design, and a high security square key design. Class v stainless steel lock components are strong yet attractive - strength doesn't have to be ugly. 5/8 inch dogbone lock fits class V 2-1/2 inch square receivers. Ball bearing locking mechanism; dust cap protects lock mechanism from the elements.
BrandDraw-Tite #ad
ManufacturerDraw-Tite #ad
Height1.5 Inches
Length8.5 Inches
Weight0.9 Pounds
Width4 Inches
Part Number580412
Model580412
WarrantyManufacturer Warranty

3. Bulldog Cases

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Bulldog 580402 Stainless Steel Dogbone Receiver Lock silver, 5/8in.

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Bulldog Cases #ad - Dual self-locking design. High security square key design. Includes dust cap. Stainless steel construction and stronger break resistance. Fits 2 inch class iII and Class IV Receivers.
BrandBulldog Cases #ad
ManufacturerBulldog #ad
Height4 Inches
Length8.5 Inches
Weight0.16 Pounds
Width1.5 Inches
Part Number580402
Model580402

4. CURT

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CURT 23518 Black Trailer Hitch Lock, Fits 2-Inch Receiver, 5/8-Inch Pin Diameter

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CURT #ad - You can keep the spare key in a discrete location for emergencies or give it to a friend for helpful access. To protect your trailer and trailer hitch ball mount from theft, this locking hitch pin is made with high-strength steel construction.

The internal components of this hitch lock can easily be protected from the elements with the included watertight dust cap, while the entire hitch lock is shielded against corrosion with a durable powder coat finish. The barbell-style locking hitch pin promotes an impenetrable appearance to deter theft, and uses a simple 1/4-turn lock activation for convenient locking and unlocking as needed.

Dependable security. With a 5/8-inch diameter pin and 2. 85 inches of usable pin length, this receiver hitch lock fits virtually any 2-inch x 2-inch hitch receiver with a 5/8-inch hole not compatible with double-walled receiver tubes. Easy to operate. Watertight. For your convenience, two keys are included with this trailer hitch lock. Versatile. Two keys included.
BrandCURT #ad
ManufacturerCURT #ad
Height1.25 Inches
Length8.87 Inches
Weight0.7 Pounds
Width1.87 Inches
Part Number23518
Model23518
WarrantyLimited 1-year Warranty

5. Master Lock

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

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Master Lock #ad - The bright red finish discourages thiefs from messing with your trailer. Universal coupler lock fits virtually all 1-7/8", 2", and 2-5/16" trailer couplers. Resists rust and corrosion. Simple installation and removal. This lock protects unattended trailers and guards against tow-away theft. Advanced locking mechanism resists picking and prying.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height7.5 Inches
Length6.5 Inches
Weight1 Pounds
Width4 Inches
Part Number389DAT
Model389DAT
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.

6. Master Lock

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Stainless Steel Barbell™ Receiver Lock, Fits 5/8 in. Receivers, Master Lock Receiver Lock, 1469DAT

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Master Lock #ad - Includes: one trailer reciver lock, two keys. Lock application: Best used for vehicles, trailers, and RV hitch locks. Specifications: usable length of receiver pin is 3-1/2 in.

Stainless steel lock fits 5/8 in. Ease of use: receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key. Durable design: weather tough seal and watertight cap provide protection from moisture and dirt; Hitch lock is rated for Class III/IV 10, 000 pound load. Receiver openings; extended length shaft fits toyota tundra, Ford F-150/F-250/F-350, GMC/Chevy 2500/3500 and Dodge trucks with heavy-duty tow packages.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height2 Inches
Length8 Inches
Weight0.7 Pounds
Width4 Inches
Part Number1469DAT
Model1469DAT
WarrantyLimited Lifetime Warranty

7. Ft. Knox Locks

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Bulldog Sliding Collar Coupler Lock Includes Trimax puck lock

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Ft. Knox Locks #ad - Ultra high security and fits the Bulldog sliding collar coupler pictured. Only fits the coupler pictured! Bright yellow powder coat finish. All welded steel construction. Bolt cutter Proof.
BrandFt. Knox Locks #ad
ManufacturerFt. Knox Locks #ad
Height4.25 Inches
Length6.5 Inches
Weight7.5 Pounds
Width4 Inches
Part Number5KP-B
Model5KP-B

8. Fulton

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Bulldog 580403 Chrome Universal Chrome Trailer Coupler Lock

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Fulton #ad - Comes with 2 keys. Highly polished chrome plated lock components are strong yet attractive - strength doesn't have to be ugly. Ball bearing locking mechanism; dust cap protects lock mechanism from the elements. Bulldog lifelong locks feature stronger break resistance, a dual self-locking design, and a high security square key design.
BrandFulton #ad
ManufacturerBulldog #ad
Height5.5 Inches
Length3.75 Inches
Weight0.4 Pounds
Width1.5 Inches
Part Number580403
Model580403

9. METOWARE

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5/8” Dia 3-1/2” Long Trailer Hitch Lock Receiver Pin Lock for Class III IV Receiver, METOWARE Keyed Alike Trailer Hitch Receiver& Coupler Lock Kit, 1/4” Dia Trailer Coupler Lock with 3/4” Inch Span

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METOWARE #ad - And the dust cap aims to keep the keyhole away from water and dirt, great design for easier using. It is reliable for long-term hauling and is secure for full protection, boat, camper and so on from theft. The tow hitch can be installed quickly and easily so that you can hoop up and head out right away.

Safe & easy to use reciever lock - our trailer coupler lock is designed for easy operation. Please confirm your required size or email us for more suggestion before having the order. Receiver lock feature - the trailer hitch receiver lock pin is designed with 5/8" diameter and 3-1/2” long to make it works well with class III IV hitches, truck, big towing vehicle, 2” 2-1/2” hitch receiver. Metoware keyed alike trailer hitch receiver& coupler lock kit, 5/8” dia 3-1/2” long trailer hitch lock Hitch Receiver Pin Lock for Class III IV Receiver, 1/4” Dia Trailer Hitch Coupler Lock with 3/4” Inch Span.

To open it, just turn the key a little bit and the pin will pop out by itself. Safe & easy to use coupler lock - our coupler locks are easy to operate with screw-type locking action -- just turn the key 5-7 times to open or lock, save your time and effort. With the push-to-lock design, you can easily push to lock it without using key. Coupler lock features – made of premium strength steel and coated with electrophoretic paint, safely protecting your trailer, our trailer hitch is durable and rust-proof.
BrandMETOWARE #ad
ManufacturerMETOWARE #ad
Part Number47272
Model47272