Buy Cheap Master Lock 377KA Universal Coupler Lock

Overall Rating (based on real customer reviews): 4.4 out of 5 stars

Master Lock 377KA Universal Coupler Lock

Features and Specifications:

Manufacturer: Master Lock
Product Dimensions: 5.6×4.3×2.8 inches
Shipping Weight: 3.7 pounds
Corrosion resistant
Designed to provide safety and security for the coupler
Easy to install
Fits 1-7/8 inches, 2 inches and most 2-5/16 inches; trailer couplers
Chrome plated
More features

Here are some REAL customer reviews:

“TOTALLY WORTHLESS”

“Works Well, Easy To Install – Highly Recommended!”

This Master Lock “Universal Coupler Lock” fits great on the 2″ coupler of my enclosed trailer and was very easy to install. This is a fairly heavy device that definitely conveys the “go find an easier target” message. I tried several different techniques…Read more

“Just OK”

This lock is very resistant to hammer attack, but many other keys will unlock it, and the cylinder can be removed very easily with standard auto theft tools. This will stop only the dumbest thief.Despite the very loose tolerances in the…Read more