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Extra-strong lock with a 1" thick hardened steel shackle provides 360 degrees of protection for your trailer coupler. Heavy-duty housing can take a beating, giving you peace of mind if you leave your trailer unattended.
Features:
Specs:
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Douglas
5/24/2025
Great. Only wish the ball was 2 516. The ball falls out of the 2 516 coupler. Need to make them to fit the coupler size
Kate F.
5/27/2025
What an easy lock! Heavy and robust.
It is freaking GREAT!!!!
Used the lock once and the locking tab literally fell off. Cheapest quality ever seen
Fast shipping, much better than Amazon !!!!
Awesome product.
Great product very heavy duty.
Damn this thing is beefy!!!
The lock is built solid and should be a fast theft deterrent. I have owned and currently own several other brands of trailer locks and this one is by far the most robust and secure.
Worked great for my application!
Very well built. Easy to use. I am sure it will be a great detractor to theft of my trailer.
Well built and solid
Super simple design, well made, exactly what you would expect from BP. I buy nothing else.
works as expected, would have given 5 stars if it were manufactured in the U.S.A.
I feel very secure in my purchase of this product!
This thing is well worth the money. Heavy duty very good fit well made and excellent materials. Would definitely recommend this to anybody with a Demco hitch.
Very strong and theft proof! I wish I would have had one of these hitch locks on one of my boat and trailers that was stole two weeks ago. I don’t think the thieves will be able to cut this lock off like the other regular kind of lock that I had used on the stolen boat and trailer.
This BulletProof Extreme Duty Coupler Lock is just what I needed for security on my new vacation trailer. It far exceeds a similar type lock that I had on my utility trailer.
Heavy duty, easy to install, and very happy with this product.
Jerry
4/5/2026
Always in use and very happy with this product.
Just received the Coupler Lock today. Fits very well on my 2 5/5/16's coupler. It is a pretty nice unit and seems to be well made. Looks and feels pretty heavy duty. A little pricey but, I am very pleased with it.
Robert
6/15/2025
A year later and the tongue lock is still holding up very well. I am really pleased with this purchase. If you are looking for a secure trailer tongue lock, look no further. This particular lock should fit your needs as it has mine very well.
Very heavy duty. This appears to be a high quality product. This should deter all but the most determine thief. It's going to take some serious tools and serious effort to get this off without the key.
Key is too small for such HD lock
Robust tongue lock at a competitive price. Safe!
A real piece of machinery built to last and not be broken into!!!
Rick
8/6/2026
Great works perfect !
Kate F.
8/6/2026
To say this is extreme duty is an understatement. If your trailer is valuable to you this is an investment.
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Douglas
5/24/2025
Great. I havent lost my trailer I guess the lock works great