The stainless steel coupler pin lock fits couplers from ½-inch to 3 3/8 inches in 1/8-inch increments. BOLT’s coupler pin lock secures the locking lever from any movement and serves dual purposes: ...

Starter's BOLT BOLT Off-Vehicle Coupler Lock deters trailer theft by securing a trailer when it is not attached to a vehicle.

Here’s how to get the job done, using a Tie Down Engineering trailer-disc-brake model 750E (for a 2-inch tow ball) designed to fit a 3-inch-wide trailer tongue. The zinc-plated assembly features a ...

Retrue Universal Coupler Lock – $12.99. $12.99 at Amazon. This Retrue trailer coupler lock is one of the more affordable options for a trailer lock that is a fraction of the cost of its competitors.

E-Z Latch ball coupler is an exclusive, new coupler design by Demco. This patent pending coupler latches when lowered over its appropriate sized hitch ball. It's offered in both 2- and 2 5/16-in ...

The Max Coupler simply slid into the female receiver hitch section and could be pinned in place using a 5⁄8-inch hitch pin. The coupler’s design allows for safe travel over virtually any ...

Next, I wrote down the model number of the Fulton Class 2 coupler and hit the web. Complete, bolt-on couplers popped up below $20 but there was no way I was cutting through any of that perfectly ...

One model features an integrated replaceable king pin, “so you have a lot less cost when king pins wear out.” When ordered on a new tanker trailer, the encapsulated upper coupler with replaceable king ...