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Keep your trailer safe from towaway theft with this universal coupler lock. Its tough frame fits in and around most 1-7/8", 2", and 2-5/16" ball couplers; and it has a bright red color and heavy-duty construction to deter theft.
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Specs:
Note: This product cannot be keyed alike.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today, on our trailer, we're going to be taking a look at the Master Lock Trailer Coupler Lock, for 1-7/8", 2", and 2-5/16" Ball Couplers. Part number ML389DAT. Now, with our heavyweight design, that's going to deter against trying to shatter it or bust this lock off of here, and since it's painted red and powder-coated, it's going to resist corrosion and rust, and it's going to be a great deterrent. When somebody sees that you've got this on there, they're not even going to mess with your trailer. It's going to have a wafer-style tumblers. They're going to resist picking and tampering, and it locks into position, and when you take the key out, you know it's secure. Now, we're looking here, at our trailer right here, even if we we're to lock this coupler on the top side from the collar, somebody could come in with a smaller trailer ball, and just slip your trailer on to it, and off they go with your trailer.
Now, with our Master Lock coupler installed, we would just slide it up into place, and we'll push it down, push it back until it's tight against the ball, against the coupler, and we'll lock it. That's not going anywhere. It's secure inside the tongue of the trailer, and you can't put another ball inside there to be able to run off with your trailer; so even if this was locked, it still wouldn't make a difference. This is not going to come out of here, and it's secure. That's going to do it for our look at the Master Lock Trailer Coupler Lock, for 1-7/8", 2", and 2-5/16" Ball Couplers.
Part number ML389DAT.
Average Customer Rating: 4.8 out of 5 stars (503 Customer Reviews)
Keep your trailer safe from towaway theft with this universal coupler lock. Its tough frame fits in and around most 1-7/8", 2", and 2-5/16" ball couplers; and it has a bright red color and heavy-duty construction to deter theft.
Fortunately no one has ever tried to pry it off or otherwise remove it, but maybe that's because it's a visible deterrent. I like the ease of application, and the locking mechanism works well. The only minor issue is the color seemed to fade in the hot Texas sunlight pretty quickly. But by all accounts, it's working as it was advertised. 409325
My second lock for my other trailer. This is an excellent solid product. It seems like it would be difficult to defeat. I'm sure it can be defeated, but probably not as fast as grabbing my shotgun and racking the slide. 498937
Works well I like the fact that it`s easy to connect, fits 1-7/8" ball up to 2-5/16" and protects my trailer peace of mind 538504
Good and sturdy! Very easy to install, takes about 5 seconds. This lock will deter the honest crook. I am happy with this purchase. 574557
Device is better than any other lock I use, I like the design, and the peace of mind of knowing that mr crook won't bother taking my trailer. Thank you 396718
Vincent - 08/15/2018I like the ease of use, however it doesnt fit snug. Almost looks like a couple of well placed sledge hammer hits would knock it off. Probably need something else. 554522
Mike L - 08/17/2018So happy to get this product. Simple, easy, and ease of mind having it! 546088
Poor design. With pry bar or chisel and hammer it would be easy to break. If your trailer is worth it, spend a couple hundred and by a heavier lock like AMP. 646633
Mike L - 05/25/2019Excellent customer service. We ordered two initially and were so impressed ordered two more. Great quality lock for a reasonable price. Delivery in two days as promised. Thank you. 434759
im retired from law enforcement and have seen EVERYTHING stolen so this lock is another layer of defense from the bad guy. It works very easily, is strong and with it being red, it is quite a deterrent. 247256
love it, it is very heavy duty we have 2, one is used on our boat trailer and the other for an enclosed trailer. feel very safe leaving them parked in the yard when we leave for a weekend. no fading of color, key still works great. recommend to others when ever we can 497282
Held up well through a tough winter. Too bad the paint has faded to a soft pink. Mechanically sound device. Not sure how a slide hammer would fare against the locking mechanism. 431768
Bob H - 09/12/2018Looks nice, easy to install ... guess the acid test will be whether or not me rig gets stolen. 575863
I feel much better about parking my trailer on the street with this lock on the hitch. Not only does it lock up the hitch securely but the bright red color signals to prospective thieves that this trailer cannot be towed. It is easy to attach and easy to remove. Also very compact so it can be stored easily. The shipping time was less than I expected. etrailer.com is my goto supplier for my trailer accessories. 467210
This is a terrific design since unlike padlocks, can't easily be cut with bolt cutters. I like the bright red color which tells a thief there is a lock to deal with from a distance. I think someone who wants your trailer can probably defeat any system you use, so the goal is to make it tough as possible and I think this lock does that. 287555
This is just the anti-theft deterrent device we have been looking for. We have an Excavation business and keep a lot of expensive tools and equipment in a 6x12 trailer. We can sleep at night knowing our trailer will still be there in the morning. This thing is very easy to put on and take off. 539334
My wife said it must work pretty good because we still have the trailer. It's true it does do what it is supposed to. I would have given it 5 stars but the paint on the lock fades pretty fast. 419359
Got one for insurance purposes. It does go on my boat trailer coupler, but could stand to be a little tighter. Seems just a little loose, although this is my 1st one maybe this is the way their supposed to fit. 395516
Nice lock. It’s nice that there is nothing to really cut on it. Latches on nice and strong. Easy to use. You could even use a default latch lock with it. Hope it holds up as good as it looks. Will review again after awhile. 438163
All products arrived on time and were the correct products I ordered. Have not had time to use the items yet, but they will perform as I expect 573881
works well 575431
etrailer always have what I need...excellent products and fast shipping. 573717
Todd - 10/14/2019I received the Master Lock Trailer Coupler Lock that I ordered. It was delivered in just a few days just a it was supposed to. It is exactly what I was looking for. It will help detour anyone from stealing my trailer ! I am extremely happy with the lock and etrailer ! I think this is a great company with great pricing on there products ! I will recommend them to everybody and will be ordering with them again real soon ! It was an easy and excellent experience. Great customer service too ! Thanks etrailer ! 298258
This lock was chosen by me for medium security of our 20' boat. I was installed easily and will keep most who want to try to steal something like our boat away. If they really wanted to, a sledge would destroy this. Where there's a will there's a way. For our 31' trailer, I opted for another model. That would take a lot more beating to 'maybe' get off the hitch. It also costs about 8 times as much though... 421763
Jerome M - 08/17/2018Do you have a question about this Trailer Coupler Lock?
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