Which is better, this or a boot for a trailer?

This is pretty good, fits any receiver and is sturdy. I also have a boot, one that clamps on each side of the wheel, so much easier to use than the so called Denver Boot. If someone wants your trailer bad enough locks and boots won't make any difference, but it sure will slow them down.

Are the keys universal or unique to each lock?

The keys are unique to the lock. I ordered the 4 pack. The keys for one lock only works on that lock.

Will this lock work on a gooseneck trailer 2 5/16 hitch receiver?

Yes, it works on mine, and the description of it states the sizes it will fit.

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

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

Product ID: 401461794

Details

Brand
Master Lock
Item dimensions L x W x H
3.6 x 7.6 x
Lock Type
Key Lock
Material
Alloy Steel
Special Feature
Advanced and

🔒Advanced pick & pry resistant lock

🚛Universal fit for 1-7/8" to 2-5/16" couplers

🛡️Rust & corrosion resistant alloy steel

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COP 629941

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Lock in your peace of mind with Master Lock’s ultimate trailer security!

BUILT TO LAST - Durable alloy steel with a bright red finish that resists rust and corrosion.
QUICK SIMPLE - Easy installation and removal so you’re always ready to roll.
FITS LIKE A GLOVE - Universal compatibility with the most common trailer coupler sizes.
EFFORTLESS CONTROL - Key-operated lock with rekeyable feature for personalized security.
UNMATCHED SECURITY - Advanced locking mechanism that outsmarts thieves every time.

The Master Lock #389DAT is a universal trailer coupler lock designed to fit 1-7/8", 2", and 2-5/16" couplers. Crafted from rust-resistant alloy steel with a bright red finish, it features an advanced locking mechanism that resists picking and prying. Rekeyable and key-controlled, it offers easy installation and removal, making it the trusted choice for securing trailers with over 15,000 satisfied users.

Specifications

ASIN	B01MYCT0LG
Additional Features	Advanced locking mechanism, Resists picking and prying, Rekeyable
Brand	Master Lock
Brand Name	Master Lock
Colour	Red
Control Method	Touch
Controller Type	Key Control
Customer Reviews	4.7 out of 5 stars 15,962 Reviews
Global Trade Identification Number	00071649263019
Included Components	Key
Item Dimensions	9.1 x 19.3 x 17 Centimeters
Item Type Name	Automotive Towing
Item Weight	1 Pounds
Item dimensions L x W x H	9.1 x 19.3 x 17 Centimeters
Lock Type	Key Lock
Manufacturer	Master Lock
Manufacturer Part Number	389DAT
Material	Alloy Steel
Material Type	Alloy Steel
Model Name	379ATPY
Model Number	379ATPY
Number of Pieces	1
Product Finish Type	Painted
Recommended Uses For Product	securing trailers
Shape	Rectangular
Smart Home Compatibility	Not Smart Home Compatible
Special Feature	Advanced locking mechanism, Resists picking and prying, Rekeyable
Style Name	Modern
UPC	071649263019
Unit Count	1.0 Count

Reviews

J**S

2.03.2026

Z**A

19.03.2026

R**E

27.09.2025

K**N

12.06.2024

N**Y

1.12.2024

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COP 629941

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Colombia.

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