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Bulldog Sliding Collar Coupler/Hitch Trailer Lock Includes Trimax Puck Lock

4.6 4.6 out of 5 stars 57 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Towing Hitch Locks by Ft. Knox Locks

$199.00
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Purchase options and add-ons

Brand Ft. Knox Locks
Special Feature Bolt Cutter Proof, Crowbar Proof
Lock Type Bulldog sliding Collar Coupler Lock
Item dimensions L x W x H 6.5 x 4 x 4.25 inches
Material Steel

About this item

  • Ultra-High Security Coupler/Hitch Trailer Lock: This strong and straightforward trailer coupler/hitch lock is designed to secure the Bulldog sliding collar coupler.
  • Heavy Duty/Ultra-High Security: This no-nonsense coupler lock is constructed of 3/16" fully welded cold rolled steel, with welded hinges and hinge pins and is bolt cutter and crowbar proof!
  • Trimax Puck Lock: This high-security, hidden-shackle padlock features a 2-7/8" wide lock body that conceals a 3/8" diameter shackle to prevent theft.
  • Bright Yellow Powder Coat Finish: We believe in presenting a hard target that is why we use a bright yellow powder coat to warn off would be thieves.
  • Ft. Knox Locks: We are a family run and operated small business with our locks designed and proudly made in the USA.
  • Double Check Your Coupler/Hitch: This lock only fits the coupler/hitchs Bulldog sliding collar pictured. If you do not see your coupler/hitch, please view our other coupler/hitch locks.
See more product details

Additional Details

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Customer ratings by feature

Lock Feature
4.8 4.8
Easy to use
4.7 4.7

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Bulldog Sliding Collar Coupler/Hitch Trailer Lock Includes Trimax Puck Lock

Bulldog Sliding Collar Coupler/Hitch Trailer Lock Includes Trimax Puck Lock


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Product Description

TOTALLY NEW - NO NONSENSE APPROACH TO TRAILER SECURITY!!! This lock fits one of the most common utility/work trailers in use - the Bulldog sliding collar 2" & 2 5/16" coupler. It also fits the king pin of a 5th wheel coupler Made with 3/16" fully welded steel with welded hinges and hinge pins. Heavy yellow powdercoat finish which screams "stay away" Made in America. Limited Lifetime Warranty against manufacturing defects. This prevents a thief from easily cutting other types of locks and driving off with your trailer. Unlike almost all other locks for this application, this one is BOLT CUTTER PROOF and can only be defeated with power tools or a cutting torch. The Masterlock style surround hasp for "puck" type locks has a proven track record nation wide on construction storage containers for decades. Don't trust your trailer and equipment to just any lock. Think Ft Knox Locks. Watch our lock defeating videos, it's actually silly how easy most locks are to defeat - not so with Ft. Knox Locks. Note: Many people have a Bulldog "type" coupler which has the word "RAM" in the casting on top of the ball. This enclosure will not fit the Ram brand coupler but we have a different model which is the same cost and fits this brand. Search for "Ram coupler lock". Lifetime warranty against manufacturing defects. Powdercoat is not warrantied. 10% restocking fee and no refund of original shipping and return shipping is on purchaser for products which are return for any reason other than defective or broken.

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Bulldog Sliding Collar Coupler/Hitch Trailer Lock Includes Trimax Puck Lock
Ft. Knox Locks Bulldog Sliding Collar Coupler/Hitch Trailer Lock Includes Trimax Puck Lock
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Price$199.00$105.00$119.99$238.00$105.00$31.69
Delivery
Get it May 15 - 17
Get it as soon as Friday, May 17
Get it as soon as Thursday, May 16
Get it May 15 - 17
Get it as soon as Thursday, May 16
Get it as soon as Thursday, May 16
Customer Ratings
Easy to use
4.7
4.9
4.8
4.9
4.5
Easy to install
5.0
5.0
4.6
5.0
4.6
Lock Feature
4.8
4.8
4.6
4.8
Value for money
4.5
5.0
4.5
4.5
Security features
4.4
4.4
4.4
Sold By
Ft. Knox Locks
Proven Industries
Tuoche shops
Ft. Knox Locks
Proven Industries
Amazon.com
lock type
Bulldog sliding Collar Coupler Lock
Key Lock
Mortise Lock
Curt Styler Coupler/Hitch Lock
Key Lock
Key Lock
number of items
1
1
1
1
1
1
material
Steel
Iron
Alloy Steel
Cold Rolled Steel
Iron
Zinc
shape
Bulldog
Round
Round
Rectangular
finish type
Sand blasted and powder coat finnish
Powder Coated
Powder Coated
‎Sand Blasted with a Poweder Coat Finnish
Powder Coated
weight
8 pounds
9 pounds
8 pounds
1 pounds

Customer reviews

4.6 out of 5 stars
4.6 out of 5
57 global ratings

Customers say

Customers like the quality and security of the lock. For example, they mention it's a heavy duty hitch locking hardware, and looks tough as nails.

AI-generated from the text of customer reviews

4 customers mention4 positive0 negative

Customers appreciate the lock's heavy-duty security and strength. They also say it's a nice piece of heavy duty hitch locking hardware and looks tough as nails.

"This thing looks tough as nails." Read more

"Seems nice and strong. When you remove the lock, watch out as it swings loose easily and can pinch. It is heavy enough to make you cuss." Read more

"Heavy Duty Security!..." Read more

"Nice piece of heavy duty hitch locking hardware...." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the quality of the lock. They mention that it is a great product and seems nice and strong.

"Seems nice and strong. When you remove the lock, watch out as it swings loose easily and can pinch. It is heavy enough to make you cuss." Read more

"Great product, highly recommend..." Read more

"Great product..." Read more

Top reviews from the United States

Reviewed in the United States on December 9, 2022
We bought 4 of these and will be purchasing more
Reviewed in the United States on September 26, 2021
have't found a dislike yet but it will take a bit of work to get it off
Reviewed in the United States on April 24, 2023
Should be a good deterrent to dissuade a would-be thief. Like the lock itself a lot but getting the collar mechanism placed over the bulldog coupler is a bit wonky as far as getting it on straight to clasp itself closed behind the collar. Also, unless you cant it a bit sideways downward the lock's key slot can trap water in it. However, I can work with those small nits & hopefully a cruising thief will pass on by looking for easier prey.
Reviewed in the United States on March 19, 2020
Very heavy duty security. It will require a drill to remove and I'm not certain even that would work.
One person found this helpful
Report
Reviewed in the United States on December 25, 2020
Works like its supposed to
Reviewed in the United States on October 14, 2019
This thing looks tough as nails.
Reviewed in the United States on October 11, 2022
Seems nice and strong. When you remove the lock, watch out as it swings loose easily and can pinch. It is heavy enough to make you cuss.
One person found this helpful
Report
Reviewed in the United States on April 9, 2022
The hinge needs to be inside of case. We are making a few out of AR500 hardened steel plate. Using the Sesamee four dial puck combo lock. It makes a very serviceable easy access high security hitch system.
One person found this helpful
Report