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Your cart is empty.The Master Lock Solid Brass Trailer Hitch Coupler Lock features a case-hardened steel shackle and a precision pin tumbler mechanism that resists picking. The lock design protects the shackle from cutting and sawing. This coupler lock comes in a solid brass body case and measures 2 inches.
J. Hall
2025-09-06 10:10:13
Like the title says. It was a letdown when a little percussive love tap didn't make this lock pop open like in the videos. Worse, even jamming a metal stick into it, fairly hard, had no effect either. No joy on my attempts to bypass the mechanism. I have yet to even successfully pick it, and apparently, there is at least one security pin in it. So, I got my money's worth out of this lock so far. I was kind of hoping for something that looks solid, but crumbles under pressure. This lock is actually pretty decent. Maybe I'm not hitting it hard enough? Time will tell. Maybe the earlier versions of this lock had flaws, but the current lock seems a little past me. I hope to get unreasonably good at picking it someday.
Sam B.
2025-08-18 15:39:36
This lock has good quality and functions well it stands up to the outside environment.
Mandy
2025-07-02 19:34:01
I ended up returning this, sadly b/c it wasn’t big enough. Quality was great and seemed durable. Can’t go wrong with master lock.
Mr. J.
2025-06-15 13:08:52
I left my old one on the bumper. Just recieved the replacement. This lock is specific to the posi lock style where the latch is narrow. Good deterrent. Covers itself.Difficult to unlock at first try. Push the button as you turn the key. Keep it lubed with lithium spray. Hard to find in stores.
Cupcake
2025-06-14 15:41:57
I like the fact that this lock has a brass body and should be fairly resistant to the elements. Also, when installed, this lock will keep the honest folks honest. A determined soul can steal near anything, given time, but this lock should convince a thief to spend their time elsewhere.
Anthony Bernichio
2025-04-27 14:17:34
Fits my trailer neck perfectly and I can’t see a way it can be broken off. Only thing is watch it around salt water. It corroded the inside of the lock so it wouldn’t lock
Richard Embry
2025-04-05 13:56:17
The very act of purchasing a lock means you want to protect that item you are locking; don't scrimp and save a few dollars and buy an off-name brand, buy this Master Lock.Lost my keys to my other hitch lock and had to cut it off with bolt cutters; this Master Lock is to replace it. I have trusted Master Lock brand for 50 years, which influenced my decision to purchase this item. Solid, seemingly good quality, I'm sure it will work fine for years.
Jennifer
2025-04-04 10:52:06
Quality, strength
DH
2025-03-21 14:26:04
I lost the setpin for the last one I had, this lock works and works. Never jammed, never rusted, never failed. My fault I lost the pin in the first place. New one has a stop on the pin so it stays attached to the main body. With this mod, its perfect.
Gustavo Acuña
2025-03-14 13:49:59
Muy fincional para la cortina en donde lo uso
RHVER
2025-02-09 13:34:29
Los materiales de buena calidad pero son más pequeños que como se ven en la imagen ..
Wm D.
2025-01-29 10:10:01
Good quality but the opening wasn't wide enough for the latch on my trailer. Send it back and refunded promptly by Amazon.
Hoang Tung Nguyen
2025-01-13 15:52:53
Qorks really well.
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