Amazon Link for Proven Industries model 2516 coupler lock.
This is the coupler lock I’m using to make my trailer much harder to steal: the Proven Industries model 2516, sized for my 2-5/16 coupler. It’s a hefty, welded steel setup with a puck lock, and I like that it’s designed to resist cutting, prying, and grinding. If someone wants my trailer with this on it, they’re going to need serious tools and a whole lot of time.
Available on Amazon
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