Description
FITS 2'' BullDog Trailer Couplers (Puck Lock Included)
Model 2178-B was designed to fit 2'' BullDog style trailer couplers. This style trailer coupler is usually found on heavy duty trailers such as those used in commercial applications and heavier weight-rated trailer applications. In most cases, Bulldog style trailer couple
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282 ratings
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Proven Locks are without a doubt the best locks on the market and with unbeatable customer service. Why would you use anything else other than Proven Locks. This is my 3 or 4 purchase from them and I have been happy with the service and support each and every time. Thank you Proven Industries for a one of a kind customer experience.
C
Cary · October 31, 2026
Hitch Lock
Very robust and high quality construction. I am very pleased and worth the investment. I shall be purchasing another for my Pontoon Boat Trailer.
