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Fits 2-5/16 Inch BallItem # ML389DAT
Retail:$30.16
Our Price: $21.95
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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.
Features:
Specs:
Note: This product cannot be keyed alike.
Video of Master Lock Trailer Coupler Lock - 1-7/8", 2" and 2-5/16" Ball Couplers
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 (442 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.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
If a thief is determined enough, just about any lock can eventually be defeated. Given the price point, this particular lock offers a good level of deterrence. The idea of deterrence is to have the thief see the lock on your piece of equipment, at which point hopefully they will move on elsewhere where the pickings are easier.
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Mike L - 05/25/2019
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
So happy to get this product. Simple, easy, and ease of mind having it! 546088
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
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
the Master Lock Trailer Coupler is has been working fine, thank you
Vincent - 08/15/2018Works 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
works well 575431
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
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
I 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
The sad fact is that locks are only for keeping honest people honest. If a thief is determined to steal your trailer, theyre going to get it. The idea is to provide a deterrent, to make the thief expend energy and make noise in order to defeat the lock. Most thieves are opportunistic, if the trailer isnt easy to steal, theres a good chance theyll move on to one thats easier.
-- Mike L - 08/17/2018Held 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
Stll holding strong. Has faded to almost white but I didnt buy it for looks. Gave the locking mechanism a shot of Tri-Flow to keep it working smooth.
Bob H - 09/12/2018im 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
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
Excellent 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
The above (new) Master Lock Universal Coupler Lock, is a upgrade to the current coupler lock that I currently have on my 4x6 Utility trailer, also, it will be a lot easier to lock/unlock the new coupler! Thanks! 421801
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
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
Purchased to secure my new trailer in an unsecured lot. Item easy to use. Good as a short term deterrent but not fully secure. Others on the market that are indestructible, but hey, you get what you pay for. 318238
Fits my 2-5/16" hitch. Not particularly heavy duty, I am sure it could be broken off without too much trouble, but has served its purpose and my trailer is still parked where it is supposed to be, so it must work! 519403
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
The whole buying and delivery of my trailer was an excellent experience. The pre-purchase questions both my wife and I had were answered and when I picked the trailer up, the USA Trailer employee spent about a half hour going over all the trailer O&M items. In this day in age of lack of customer service, that is really commendable of USA Trailer! Thanks! 564710
etrailer always have what I need...excellent products and fast shipping. 573717
Looks nice, easy to install ... guess the acid test will be whether or not me rig gets stolen. 575863
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
I just received the coupler lock today so its to soon to write about quality other than it is heavy and seems to be built well. The shipping from etrailer is very quick, paid extra for the three day delivery and it was on time. I've attached it to my 2 5/16" coupler and it fit great. 388082
Good product, seems very solid. I like the bright red paint to let everyone know from a distance that the boat trailer is locked. My only complaint is that the paint faded very quickly. 575906
We have two vintage trailers. The first one is a 1948 Spartan Manor, we haven't tried the lock on it yet, and the other is a 1958 Aloha which I put the lock on it and it fit like a glove! It was really easy to put on too, so I think it should fit the Spartan just fine also. We got one for each trailer. We like the color for two reasons, one, being red, you can see it clearly, less chance of running into the front of the trailer. Two, it lets thieves know there is a lock on the trailer, and it wont be easy to steal without making a lot of noise. We were pleasantly surprised when the lock came and found it so well made. It's not light or wimpy at all. We're very happy! Thanks for the peace of mind. 238293
I 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
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
This 'Master Lock' is a great item in added protection for my modified cargo trailer. We all work hard in keeping what is ours' ours. There's always that impulse for those shady individuals out there in breaking a simple lock in taking your hard earned items. This Master Lock looks very durable and notable in given them second thoughts. Thanks' George J. For a quality item' great shipping and packaging. Will highly recommend "etrailer" to new friends I meet on the road. Regards' RG 238081
Nice lock and fit my small trailer nicely. It looks like the coating should last as I have the trailer in a coastal region that the last lock (different brand) lasted about a year before the plating was rusted. One of my other boat trailers has a Master lock on it that has been on it for 9 years with no rust, unfortunately that model wouldn't fit the small trailer. 265280
I have just gotten product seem ok 553724
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
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
After one year, taking it off. Our boat is in use again after 1 year, going to Lake Mead. It has held up great, easy to open, and kept thieves away...
Jerome M - 08/17/2018I would've given it 5 stars, except it doesn't fit my trailer. It looks to be a very solid lock. As far as shipping I received it 4 days after ordering, and it was in stock, unlike that other online site. 572093
This master lock trailer coupler fits my camper tongue perfectly and is easy to install, remove and store. The red coated steel body is heavy, solid and secures the tongue against thief as stated in the directions. I like the red powder coating for its visibility, as well. The key well is water and dust proof and stands up to those adverse conditions. This is a must for securing any trailer, any where, any time. The price is fair and the lowest I found anywhere. 273905
This lock does a good job of denying access to the trailer hitch ball so that the trailer is less easily stolen. However, an inventive thief could still chain to the hitch and tow the trailer away unless the wheels are somehow locked against rotation. This is a good initial safety measure and works well as intended to deny access to the hitch ball. The only issue I have seen is that the cover quickly faded to pink color in the sun and is no longer bright red - only a cosmetic issue. 409492
I have installed the lock on my snowmobile trailer which is in a unprotected lot, but could stand to be a little tighter. Seems just a little loose, although this is my 1st one installed maybe this is the way their supposed to fit. I actually bought two as the idea is great. 463520
With drive off trailer theft going up in our area I had to find a way to protect my cargo trailer that was easy for me to apply and tuff for some would be thief to get past. BINGO this coupler lock is just the ticket, it slips on in a jiff and blocks the coupler from being used. The best part is it’s a Master Lock and tuff as nails. 267141
Nice visible extra deterrent to the padlock on the lever. Where as the padlock can be cut with a bolt cutter, this is strong and secure. 658246
Nice lock. 655835
Works as it should. Bought 3 all different keys that is good. 652903
Great product. Exactly as described. Great quality and value. Plus, the shipping was outstanding! eTrailer is a great company and you won't go wrong with them! 644721
Simple and easy to install, very well b uilt. 644583
Easy company to do business with.. highly recommend! Thank you 642726
It looks decent quality and is a visual deterrent 641845
It seems like a sturdy lock. 639997
Pkg came in on time as stated and in perfect condition and work great. 639838
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