Master Lock keyed-alike trailer lock on a hitch coupler for simple keying
Master Lock universal trailer coupler lock shown on a trailer coupler for tow-away protection
Master Lock reinforced zinc-die-cast trailer lock showing rust resistance and durability
Master Lock keyed-alike trailer lock on a hitch coupler for simple keying
Master Lock universal trailer coupler lock shown on a trailer coupler for tow-away protection
Master Lock reinforced zinc-die-cast trailer lock showing rust resistance and durability

Master Lock 379KA-4: Four Keyed-Alike Universal Trailer Coupler Locks with 8 Keys

Protect multiple trailers with one key The Master Lock 379KA-4 kit is a four-pack of keyed-alike trailer...
Vendor: Master Lock
Availability: In stock
£193.40
£193.40
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Master Lock keyed-alike trailer lock on a hitch coupler for simple keying

Master Lock 379KA-4: Four Keyed-Alike Universal Trailer Coupler Locks with 8 Keys

£193.40
Master Lock keyed-alike trailer lock on a hitch coupler for simple keying
Master Lock universal trailer coupler lock shown on a trailer coupler for tow-away protection
Master Lock reinforced zinc-die-cast trailer lock showing rust resistance and durability

Master Lock 379KA-4: Four Keyed-Alike Universal Trailer Coupler Locks with 8 Keys

£193.40
Description
Description
x

Protect multiple trailers with one key

The Master Lock 379KA-4 kit is a four-pack of keyed-alike trailer coupler locks designed to simplify security for a fleet, a storage yard, or a property with several trailers. With a single keying system across all locks, you can operate every lock without juggling different keys. Each lock ships with two keys, giving you eight keys in total for ongoing use and spare access.

Designed for real-world usability

The locks guard unattended trailers and help deter tow-away attempts. The universal design fits common 1-7/8 in, 2 in, and most 2-5/16 in couplers used by Reese, Fulton, Valley, Atwood, Shelby, Putnam, Hammerblow, Dutton, Lainson, and UFP.

The clever geometry places the lock on top of the coupler when locked, making blunt-force entry more difficult. The lock also rotates slightly, adding an extra hurdle if someone tries to break in with heavy tools.

Strength, durability and long-term value

Constructed with reinforced zinc die cast, these locks resist rust and corrosion while delivering high strength. The kit is designed for repeated use in challenging conditions and remains relatively lightweight for easy handling during installation and removal.

  • Keyed-alike convenience: one key opens all locks; eight keys included
  • Broad compatibility: fits 1-7/8 in, 2 in, and 2-5/16 in couplers from major brands
  • Durable construction: reinforced zinc die cast for improved strength and formability
  • Security design: lock sits on top of the coupler and rotates to resist forced entry
  • Easy to use: rekeyable cylinder with simple installation; about 2.4 lb per lock
  • Warranty: Limited Lifetime warranty

In the box

  • Four keyed-alike trailer locks
  • Eight keys total
  • Limited Lifetime warranty

Ordering notes

If you order two four packs, they may not be keyed the same. For guaranteed keyed-alike compatibility, consider the eight-pack option.

FAQ

Q: What is included in the 379KA-4 set?

A: A four-pack of keyed-alike trailer locks with eight keys total; each lock includes two keys.

Q: Which coupler sizes does it fit?

A: Fits most common 1-7/8 in, 2 in, and 2-5/16 in trailer couplers used by major brands.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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