Master Lock - Universal Size Fits 1-7/8", 2", and 2-5/16" Couplers - Trailer Locks 389DAT, 4 Pack
Condition: New
$127.00
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 8 left in stock, order soon!
Arrives
Saturday, Nov 14
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At a glance
- Condition
- New
- Size
- 4 Pack
- Model
- 389DAT
- Dimensions
- 16.5 x 9 x 8 in
- Weight
- 5.96 lb
Features 4
- These 4 locks have different key numbers. The similar 379KA coupler locks are available keyed alike. The only difference between this one (389DAT) and the 379KA is the color.
- Universal coupler lock fits virtually all 1-7/8", 2", and 2-5/16" trailer couplers.
- This lock protects unattended trailers and guards against tow-away theft. The bright red finish discourages thiefs from messing with your trailer.
- Resists rust and corrosion. Simple installation and removal.
Specs 6
| Manufacturer | Master Lock |
|---|---|
| Brand | Master Lock |
| Item Weight | 5.96 pounds |
| Product Dimensions | 16.5 x 9 x 8 inches |
| Item model number | 389DAT |
| Manufacturer Part Number | 389DAT |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Nov 14
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
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- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Top Amazon Reviews
Does the job!
Size: 1 Pack
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.
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Reviewed in the United States on July 24, 2026 by Rodger P Hopp
Theft proof
Size: 1 Pack
Well made, sturdy, theft proof. Easy to operate.
Reviewed in the United States on July 15, 2026 by Catrina
Works good
Size: 1 Pack
Works as it says seems secure so far so good
Reviewed in the United States on October 14, 2026 by Avren
Nice easy to use lock
Size: 1 Pack
Easy to use lock. Not theft proof but a good deterrent
Reviewed in the United States on September 5, 2025 by LINDA NELSON
Great value and protection
Size: 2 Pack
Easy to install. Great protection. Great value.
Reviewed in the United States on June 9, 2026 by A.R.
Already worth every penny!
Size: 1 Pack
For being a relatively small lock, it has done its job so far! I went out to my trailer this AM and noticed a bunch of marks on the lock from what I assume was a hammer. It has already earned its keep in deterring a theft attempt!!
Reviewed in the United States on August 29, 2026 by House Of Thune
Lock
Size: 1 Pack
Fits several hitches
Reviewed in the United States on September 12, 2026 by JOHN B. LIEGL
Master trailer lock.
Size: 1 Pack
STURDY, good quality.
Reviewed in the United States on September 28, 2026 by Cecilia