Master Lock Universal Heavy-Duty Coupler Lock Installation Video

How to Install a Master Lock Universal Heavy-Duty Coupler Lock

Alright today on this Gooseneck Trailer were going to do a test fit of part number 2989at from Master Lock, this is their universal heavy duty coupler lock. This lock will work on the Gooseneck Trailer as shown here and also on the fifth wheel. The lock comes packaged with the adapter for the fifth wheel in place, but we dont need that for our Goosenecks, were just going to take it and slide it… see more >