(IN STOCK - READY TO SHIP)
Model S175 is our most affordable trailer coupler lock because it slides right over the coupler flange. From an "A-frame" welded-on trailer coupler, to a straight bolt-on style trailer coupler, Model S175 fits them both and will provide a great level of security!
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. In addition, we manufacture all of our products in the USA!