Master Lock Coupler Lock, Universal Trailer Coupler Lock, Keyed Alike, For 1-7/8" and 2" Couplers, Nickel-Plated Zinc

Keeps your trailer coupler covered and locked down with a simple keyed alike setup.

Universal fit for everyday trailer security.

Product Overview:

When your trailer sits out in the open, you notice it fast. This coupler lock gives you a plain, solid way to keep the socket enclosed and harder to mess with. It fits 1-7/8" and 2" couplers, so you are not hunting around for some fussy one-off fix. The nickel-plated zinc finish brings a clean, tough look, and the keyed alike setup keeps things straightforward. Set it in place, hear that reassuring click, and you can get on with the day a little easier.

Key Features:

• Universal trailer fit: Sized for 1-7/8" and 2" couplers, so you can cover common trailer setups without the guessing game.
• Keyed alike convenience: One key pattern keeps the routine simple, which is handy when you want less pocket-juggling and fewer small headaches.
• Enclosed coupler socket design: The lock wraps the socket cleanly, helping keep your trailer protected while it waits in the yard or lot.
• Nickel-plated zinc build: The finish gives it a tidy, no-nonsense feel and stands up well to day-to-day use.
• Compact, practical security: It does its job without a lot of fuss, so your trailer feels calmer to leave parked and your workflow stays moving.

Quick Specs:

• Brand: Master Lock
• Model Number: 377KA
• Color: Nickel-Plated Zinc
• Format/Type: Universal trailer coupler lock
• Compatibility/Use: For 1-7/8" and 2" couplers

If you want a trailer lock that feels straightforward in your hand and settles your mind at the curb, this one is easy to live with. Want to put that simple, snug fit to work for your setup?

Unit of Measure: Each