Model 2178-A was designed to fit the Atwood Yoke Latch trailer couplers. This style trailer coupler is usually found on open Utility Trailers or Travel Trailers.

Designing the best coupler locks is not an easy task. We pride ourselves on producing a “glove like” fit coupler lock. Rest assured that Proven Industries trailer lock products will leave you with simply the best coupler lock on the market. This style coupler will allow you to secure safety chains in lock