Looking for the best Boat Trailer Jacks? Check out our comprehensive guide with the 10 best options available. ... Hardware included to mount up to a 3" x 5" trailer frame. Pull Pin Diameter-0.5 inch; ...

Most ­boat-trailer jacks are operated manually. The boater cranks the handle to move the jack up and down and raise or lower the boat. Other jacks are available today that work ­using an electric ...