Newly

2-5/16" Ball Madlock Trailer Coupler Lock

Product description

During economic hardship, there's often an increase in crime, especially theft. Madlock offers superior protection at a competitive price, giving you the peace of mind you deserve.


Stop trailer theft before it happens. Madlock is the heavy-duty, lightweight trailer lock designed by machinists who understand security.

Simple to use, impossible to break. Our unique design turns thieves away and gives you peace of mind.

Built in the USA with a lifetime warranty on mechanical failure. We believe in our product, and we stand behind it.

Madlock's patented one piece, All-Metal design, makes a user friendly lock which is quick & easy for anyone. Simply slide over the trailer coupler, lift the lock, insert and turn the key.  Your trailer is now secure!