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🔐 Lock it down, stand out loud—security that speaks volumes.
The Master Lock 389DAT Trailer Coupler Lock offers universal fitment for the most common trailer coupler sizes with a robust, pick-resistant locking mechanism. Its bright red, corrosion-resistant alloy steel design not only deters theft visually but also withstands harsh weather conditions. Easy to install and backed by a Limited Lifetime Warranty, it’s the trusted choice for professional-grade trailer security.
| ASIN | B01MYCT0LG |
| Additional Features | Not_Performance_Used |
| Best Sellers Rank | #1,466 in Automotive ( See Top 100 in Automotive ) #6 in Towing Hitch Locks |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Red |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.7 out of 5 stars 17,438 Reviews |
| Finish Types | Painted |
| Global Trade Identification Number | 00071649263019 |
| Included Components | Coupler Lock |
| Item Dimensions | 3.6 x 7.6 x 6.7 inches |
| Item Type Name | Automotive Towing |
| Item Weight | 16 ounces |
| Item dimensions L x W x H | 3.6 x 7.6 x 6.7 inches |
| Lock Type | Key Lock |
| Manufacturer | Master Lock |
| Manufacturer Part Number | 389DAT |
| Manufacturer Warranty Description | MASTER LOCK PRODUCT WARRANTY Limited Lifetime Warranty Master Lock Company LLC (“Master Lock”) grants the following warranty: If this product or any part of the product fails due to a defect in materials or workmanship at any time during the life of the product, Master Lock will, at its own discretion, repair or replace the product or part free of charge. Simply contact Master Lock at www.masterlo… |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Name | Trailer Coupler Lock |
| Model Number | 379ATPY |
| Number of Pieces | 1 |
| Recommended Uses For Product | securing trailers |
| Special Feature | Not_Performance_Used |
| Style Name | Master Lock |
| UPC | 071649263019 |
| Unit Count | 1 Count |
C**A
Theft proof
Well made, sturdy, theft proof. Easy to operate.
R**P
Does the job!
Fits great and easy to install. Built very sturdy and bright enough to alert anyone looking that a hitch safety tool is attached. I've had other products in the past that either broke or quite working. This appears to be a much better product. The key works smoothly too. I'd recommend this to others.
J**S
High quality, great price, fits variety of trailer ball szes
Master brand is known for high quality, which usually comes with higher price than competitors. Lots of research done to find a very solid lock for new camper trailer. This lock was reasonably priced, in line with other 'foreign'-named options. Lock arrived quickly AND much better theft protection than a lock through the trailer latching mechanism.
T**1
Looks Imposing
The item came super quick and I put it on. The bottom tucked right up into the hitch once I got done shaking my finger and dancing around after I had trouble getting the slider to slide right, but that is operator error. It did not cover the entire top of the hitch, more it attached to the side of the hitch. The one thing that I will do is glue a bit of bike inner tub on the top part where it clamps against the side of the hitch. My partner had just gotten done sanding and priming and repainting the tongue and he said if that lock scrapes his paint there will be H E Double Hockey Sticks to pay. In the same vein as others have pointed out, if someone wants my Airstream, they will find a way to get the lock off and take it. But the "Rudolph nose" sure stands out and says I am not going to make it easy. After I have used it for a while I will give an update. Okay, I have had it on several months. It works fine. I did glue the inner tube to the hitch to keep it from scraping the paint off. Again, if someone wants the Airstream, they will find a way. But this will stop crimes of opportunity.
K**N
Smooth operator
Smooth locking mechanism and easy to use. Definitely recommend.
G**O
Excellent product
Very sturdy build, very easy to put on and take off. Fast delivery, excellent packaging from a well-known company and the best price out there. Good bang for the buck.
I**V
Survived 2 theft attempts
Fantastic lock, survived 2 theft attempts. Ordering more as backups but very happy it held up
P**P
Simple and effective
Easy to install. Fits nearly every trailer coupler. Design is nearly if not entirely bolt cutter proof.
E**N
Finally, one that fits
This one finally fits my hitch and seems to lock on well once installed properly. I recommend this one.
Z**A
Nice to have
Nothing serious, it is working well. Fits to my AL-KO head.
R**E
Excelente candado para remolque
Excelente producto
N**Y
Good
Trailer fermé
D**K
Dissuasion
Fait le tafff. Très bonne dissuasion. De bonne fabrication. Oui je recommande.
Trustpilot
3 weeks ago
4 days ago