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Whether you’re securing a lightweight utility trailer or a hefty towing setup, the Blaylock EZ Lock Trailer Coupler Lock has got you covered. It supports Bulldog Collar-Lok-style couplers that fit 1-7/8", 2", and 2-5/16" hitch balls, making it ideal for a wide variety of trailers. Its versatility means it suits most trailers, making it a great choice for anyone looking for reliable, adaptable security.
Don’t let rust compromise your trailer lock’s integrity. The EZ Lock is constructed from aircraft-grade, lightweight aluminum, which resists wear and corrosion. This ensures long-term durability and robust security, even in challenging weather conditions. You can trust this lock to maintain the safety of your trailer throughout its lifespan.
Forget complex setups and endless adjustments – the slide-through locking mechanism of the hardened steel pin makes securing your trailer a breeze. Simply align the raised ball with the coupler, wrap the heavy-duty bracket around the coupler, slide the pin through, and secure it with the included Master Lock padlock. It’s a straightforward and efficient solution to protect your trailer without any fuss.
Feel confident leaving your trailer unattended with a hardened steel pin and stainless steel padlock with a shackle that anchors into place. This design prevents would-be thieves from towing your trailer away, offering peace of mind when you’re not around. Built to deter theft effectively, this design flaunts both style and substance.
Rejoice in the knowledge that your lock is crafted in the USA, boasting exceptional quality and craftsmanship. For those who prefer domestic products, the Blaylock EZ Lock Trailer Coupler Lock stands as a testament to American manufacturing prowess. With this lock, you’re not just investing in security—you’re investing in quality and reliability that supports local manufacturing.
Weighing in at just 4 lbs, this lock strikes a balance perfectly between weight and strength. While it is light enough to transport and install easily, its robust materials ensure steadfast security. You benefit from a product that’s both convenient and formidable, guarding your trailer with minimal effort on your part.
This lock system is simple and weather exposure should not be a hindrance for removal when needed.
I would like to see the pin made of hardened steel. May get a machinist to fab one up out of a harder Rockwell rating.
Painted it Orange and it contrasts very well to the black trailer frame.
This is a visual que for those passing by the county road, that the coupling has 'something' on it.
The Master lock appears to be of a higher quality the the same design but sold for storage unit use. It may be made by Master but have no way of knowing. The lock operates very smoothly and the stainless body is perfect for outdoor application.
A shout out to Jennifer who has been providing excellent customer service from day one.
This means I will use etrailer for future trailer needs, thanks to her.
Hope this helps others.
Holding up well, no rust! Very secure for bulldog hitches
We have several trailers we use to haul equipment to job sites and have to leave them at site over night so these locks are very sturdy which gives us security from theft and was able to get all locks keyed alike so one key works on all trailers which is convenient.
The fit is perfect for the bulldog coupler. It should keep unwanted thieves away, I feel safer about leaving my trailer unattended
Coupler lock shipped/arrived quicker than expected and works as intended.
One year in with many camping trips, we are very happy with the coupler lock. This lock fits the bulldog style coupler well, and the master lock has worked well through rain and shine.
Kirk 
6/22/2024
This is a great coupler lock. It is hefty and easy to use. It has been working well for us.
The product is well designed and I'm sure would work on many/most couplers. However I have an Equal-i-zer 4-point weight distribution hitch with sway control, and the EZ Lock simply won't fit. The Equalizer is too large and the EZ Lock wasn't designed to give enough clearance to get on there. So I wasted my money.
Buy this if you have another configuration, but be forewarned if you have what I have and avoid this product.
Sierra K.
7/30/2021
Thank you for your review. This lock is designed to fit Bulldog Collar-Lok-style couplers.
I done some research about this and similar products and found this product to be the best bank for the buck. made to fit my Bulldog hitch. It is used by folks that sell trailers, I thought that was good enough for me...
ordered one with the master lock from e_trailer received in in just a few days as stated as for pricing ...you won't be it by much if any!
Lavoyd O.
11/13/2015
lock bracket seems real secure but is a little more trouble than old ,old style ...throw on a lock and your done.
I highly recommend This lock, along with the offered MasterLock padlock to anyone wanting to secure a trailer with a Bulldog hitch. I am very pleased with the quality & workmanship of this product to help secure my Horse Trailer hitch.
Julie
3/16/2019
After 1 year, Still very Happy with this lock. It is on my trailer all the time, removed only to hook the trailer to the truck. Excellent, quality product!
fits Bulldog hitch well. price is a bit high, but great product.
I am very pleased with the tongue lock. I use it on my boat trailer which I often leave in a Marina for several days at a time while the boat is in a slip. I tend to think of it like all deterrents, another layer of security to overcome which will encourage movement towards an unlocked trailer hitch. It works well, seems sturdy and accomplishes the purpose.
Not my first order with e trailer, but always the best!!!
It is a very good lock for a standard ball trailer. Lock has a reasonable quality Master short shackle key lock with 2 keys.
Very easy to use
I recommend you routinely (every 3-6 months) lubricate the lock with graphite or WD-40 to prevent the lock and shackle from binding.
It was too lose and fell off.
I had to put a sleeve around the pin to take up the slack. I have 3 different trailers and it was the same thing.
After the alterations it works good.
Sierra K.
10/26/2021
This item works with Bulldog Collar-Lok couplers only. I believe this universal coupler lock will work better for you and your 3 different trailers: Item # TMX47FR.
This is a great lock for a trailer hitch. I use it with a bulldog style hitch. Definitely adds a layer of theft protection that may serve as a deterrent for theifs. I would definitely recommend this lock to anyone.
nice product, price a little high for a piece of unpainted steel, also needs to be a left and right side for trailers, in Texas needs opening on left to light the licence plate.
The people in sales were pleasant to talk with, product arrive as promised, nice experience, will by from them again, recommended.
This thing works like a charm. Keeps my trailer secured when I’m disconnected and away. Would recommend to anyone looking for a coupler lock.
We purchased this lock as the locks we previously were using the lock kept getting stuck and the key would not open the lock and we ended up having to saw off the lock.
This lock has worked perfectly and we will only be purchasing this lock for our other trailers!
I tried other trailer locks without success , this lock fits great. very well made .
The product is extremely well made. It is a little large for my trailer hitch but it works never the less. I would highly recommend this trailer lock.
I hear about trailers being stolen everyday so it was a no-brainer to purchase this EZ Lock Trailer Coupler. Easy to install, easy to use. Enough said. Thanks etrailer.com!
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Y-lee K.
6/25/2018
still a great solid product. Spray some silicon in the lock about every few months and all works well.