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Quantity
1
Description
Description
Model 2517-D was designed to fit Stamped Demco style trailer couplers. This style trailer coupler is usually found on heavy duty enclosed car trailers such as those used in show car transportation applications, Demco style trai...
Reviews
4.7
173 ratings
5
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Perfect Solution
Perfect fit, stows safety chains as well. "Bomb-proof" construction materials. Extremely happy with the fit and quality. Thank you Proven Industries for creating design & quality where all others fail!
G
Greg · August 24, 2026
Model 2517-D
Very happy with my Proven industries trailer lock. I sent a picture of the coupler of the trailer, and Proven technical advisor emailed me the correct model for my trailer. This is the second trailer lock so I had the lock coded to the frist lock.
J
James · July 30, 2026
Built stout!
I’m very impressed with how tough this lock is. I’m using it on our boat trailer, unfortunately due to the design of our safety cables, “not chains”, it’s very difficult to get everything lined up so the puck will engage and lock. I’m very happy with the quality I just hope in time it will get easier to use
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