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.

Master Lock Trailer Coupler Lock Universal Size Fits 1 7

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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€ 73.97

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Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Lock in your trailer’s safety and leave thieves locked out!

BUILT TO OUTLAST - Durable alloy steel resists rust and corrosion for long-term protection
NEXT LEVEL SECURITY - Advanced locking mechanism engineered to resist picking and prying
RED ALERT FOR THIEVES - Bright red finish acts as a bold visual deterrent
HASSLE FREE PEACE OF MIND - Simple installation plus a Limited Lifetime Warranty from Master Lock
UNIVERSAL FIT ZERO GUESSWORK - Fits 1-7/8", 2", and 2-5/16" trailer couplers seamlessly

The Master Lock 389DAT Trailer Coupler Lock offers universal compatibility with the three most common coupler sizes, featuring a bright red, rust-resistant alloy steel body and an advanced locking mechanism designed to resist picking and prying. Trusted by professionals and backed by a Limited Lifetime Warranty, it combines high security with easy installation to protect your trailer from theft.

Specifications

ASIN	B01MYCT0LG
Additional Features	Advanced locking mechanism, Resists picking and prying, Rekeyable
Best Sellers Rank	#8,029 in Automotive ( See Top 100 in Automotive ) #26 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 17,417 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	1 Pounds
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	Advanced locking mechanism, Resists picking and prying, Rekeyable
Style Name	Master Lock
UPC	071649263019
Unit Count	1.0 Count

Reviews

J**S

2.03.2026

P**P

3.04.2026

J**E

28.02.2026

H**K

3.04.2025

J**E

24.11.2024

G**O

10.03.2026

I**V

27.04.2026

N**S

22.04.2024

Z**A

19.03.2026

P**S

24.01.2025

R**E

27.09.2025

K**N

12.06.2024

N**Y

1.12.2024

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 73.97

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

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

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Description

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Common Questions