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Master Lock - Universal Size Fits 1-7/8", 2", and 2-5/16" Couplers - Trailer Locks #389DAT

4.7 4.7 out of 5 stars 15,679 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Towing Hitch Locks by MASTERLOCK

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1 Pack

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About this item

  • Universal coupler lock fits virtually all 1-7/8", 2", and 2-5/16" trailer couplers
  • Bright red finish discourages thief's from messing with your trailer
  • Resists rust and corrosion. Simple installation and removal
  • Advanced locking mechanism resists picking and prying
See more product details

Customer ratings by feature

Easy to install
4.7 4.7
Easy to use
4.7 4.7
Easy to lock
4.6 4.6
Lock Feature
4.4 4.4

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Master Lock - Universal Size Fits 1-7/8", 2", and 2-5/16" Couplers - Trailer Locks #389DAT


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Product Description

Coupler Lock, Lock Type Universal, For Use With Automotive and Towing, Trailers, Vans and Moving Trucks, Features Resist Rust and Corrosion

Customer reviews

4.7 out of 5 stars
4.7 out of 5
15,679 global ratings

Customers say

Customers like the color, quality and ease of installation of the trailer lock. For example, they mention it's bright red, works great and is well made. Some appreciate the value for money. That said, opinions are mixed on the fit.

AI-generated from the text of customer reviews

794 customers mention688 positive106 negative

Customers like the quality of the trailer lock. They say it's well-made, strong, and has not failed them yet. The heavy material and powder coat should last a lifetime, providing peace of mind.

"Easy to use. Fits well. Seems well-made and secure." Read more

"...Unfortunately it is made of lightweight medal yes appears durable & easy to use...." Read more

"...We use this lock because it appears to be very sturdy, not easily defeated, and it has a bright color...." Read more

"...Removes readily with key when time to use trailer. Heavy material and pain/powder coat should last a lifetime." Read more

660 customers mention532 positive128 negative

Customers like the lock. They mention it's easy to use, secure, and plugs the coupler area. They also feel safe with the lock on, and appreciate the fact that it'd be obvious to thieves. The lock is well-made and secure, works as designed to lock your trailer tongue, and has a clicking motion.

"...This will work to deter the casual thief, and that's all you can do." Read more

"Easy to use. Fits well. Seems well-made and secure." Read more

"Works as designed to lock your trailer tongue. Unfortunately it is made of lightweight medal yes appears durable & easy to use...." Read more

"...The lock is obvious to potential thieves there is a lock...." Read more

448 customers mention448 positive0 negative

Customers find the installation process of the trailer lock to be easy. They mention that it's simple and strong, and easy to install and remove. Some say that the lock is very basic and economical.

"This is my favorite hitch lock so far. It's super easy/fast to use, and fits all ball sizes...." Read more

"Easy to use. Fits well. Seems well-made and secure." Read more

"...Unfortunately it is made of lightweight medal yes appears durable & easy to use...." Read more

"Easy to install and closes tight around tongue - no rattles. Removes readily with key when time to use trailer...." Read more

162 customers mention143 positive19 negative

Customers like the value of the coupler lock. They say it's well worth the small price, a great investment, and a lot cheaper than replacing a trailer. Some customers also mention that it takes up little real estate and functions solidly.

"...This lock is very basic, more economical, and works perfect." Read more

"great buy" Read more

"great price for great quality" Read more

"...Great price too!" Read more

47 customers mention39 positive8 negative

Customers like the color of the auto accessory. For example, they mention it's bright red, highly visible, and a deterrent to thieves.

"...it appears to be very sturdy, not easily defeated, and it has a bright color...." Read more

"...The bright red color is ez to see.I have other Master Lock products on the trailer and my locksmith keyed it for me so I can have just one key...." Read more

"...This is VERY heavy and super THICK in all the right places. It's bright red to warn off any passer-byes who might get ideas...." Read more

"Easy to put on or take off. Bright red, let's everyone know there is a hitch lock on...." Read more

43 customers mention43 positive0 negative

Customers are satisfied with the appearance of the lock. They mention that the red color stands out, making it a good visual deterrent. The coating seems durable and serves as a visual reminder to everyone that the trailer is secure. Customers also mention that it's ominous looking and intimidating to look at.

"The color alone wins me over and keeps would be takers away." Read more

"...Red paint is real nice touch though." Read more

"This trailer lock is built for security! Easy to use and looks great. Engineered for safety and confidence. First ballot allstar!" Read more

"We bought this really cool looking little camper. It was a concern that any pickup truck could back up to it and drive away in under 4 minutes...." Read more

282 customers mention183 positive99 negative

Customers are mixed about the fit of the auto accessory. Some mention that it works great, fits most any coupler, and turns smoothly. However, others say that it fits a little loose and won't fit their dump trailer.

"...It's super easy/fast to use, and fits all ball sizes...." Read more

"Hoping it can stand up to any tampering by thieves. Fits a little loose which bothers me, but it’s just how it fits...." Read more

"Easy to use. Fits well. Seems well-made and secure." Read more

"Heavy duty, fits perfectly on our new style RV Trailer hitch.Highly recommend." Read more

43 customers mention19 positive24 negative

Customers are mixed about the ease of removal of the auto accessory. Some mention that it's easy to put on and remove, while others say that it can be difficult sometimes to get off.

"...Seem like it could be pried off —which I won’t try but will a crook? Needs to feel more ironclad secure as a deterrent." Read more

"Easy to install and closes tight around tongue - no rattles. Removes readily with key when time to use trailer...." Read more

"...Is it a hassle to get these devices off? No, I’d rather take that three minuets than have to get another trailer...." Read more

"But was easy to break off with hammer when we lost the key so it would still be very easy for someone to steal" Read more

Essential Trailer Security
4 Stars
Essential Trailer Security
We are owners of a 27 ft travel trailer. I recently wrote a review on another trailer security lock that we purchased for our travel trailer. I mentioned that it was a backup to a more visible security lock. This trailer lock, Master Lock - Universal Size, is our primary security lock.We use this lock because it appears to be very sturdy, not easily defeated, and it has a bright color. While those first two points are probably the most important, it is the bright red color that I like the most. The lock is obvious to potential thieves there is a lock.I can't begin to tell you how many travel trailers we see at campgrounds or in driveways that have no security lock on their front hitch. These are easy targets. Our lock basically says to potential thieves to move on.I highly recommend this product. Trailer Theft is more prevalent than you may think.
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Top reviews from the United States

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Reviewed in the United States on September 10, 2023
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Customer image
4.0 out of 5 stars Essential Trailer Security
Reviewed in the United States on September 10, 2023
We are owners of a 27 ft travel trailer. I recently wrote a review on another trailer security lock that we purchased for our travel trailer. I mentioned that it was a backup to a more visible security lock. This trailer lock, Master Lock - Universal Size, is our primary security lock.

We use this lock because it appears to be very sturdy, not easily defeated, and it has a bright color. While those first two points are probably the most important, it is the bright red color that I like the most. The lock is obvious to potential thieves there is a lock.

I can't begin to tell you how many travel trailers we see at campgrounds or in driveways that have no security lock on their front hitch. These are easy targets. Our lock basically says to potential thieves to move on.

I highly recommend this product. Trailer Theft is more prevalent than you may think.
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Customer image
Customer image
16 people found this helpful
Report
Reviewed in the United States on March 4, 2024
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Top reviews from other countries

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Rolland
5.0 out of 5 stars Rapport qualité-prix
Reviewed in Canada on March 16, 2024
Size: 1 PackVerified Purchase
Czeslaw Kochanowicz
5.0 out of 5 stars Ok
Reviewed in the United Kingdom on December 25, 2023
Size: 1 PackVerified Purchase
roberto mascareñas dominguez
5.0 out of 5 stars Buen producto
Reviewed in Mexico on February 2, 2021
Size: 1 PackVerified Purchase
Elin Hilton
5.0 out of 5 stars Intuitive and Deterrent Lock
Reviewed in Australia on May 17, 2023
Size: 1 PackVerified Purchase
Steve.
5.0 out of 5 stars Works
Reviewed in Canada on January 8, 2024
Size: 1 PackVerified Purchase