Harbor Freight sells a Haul-Master dual wheel 1,500-pound jack for $49.99 that can be mounted to just about any trailer and swings away to keep it off the ground while you're towing.

Here are three types of tongue jacks for today’s boat trailers. Swing Jacks. The Lift: Hand-crank jacks such as West Marine’s 1,500-pound-capacity swivel-mount model ($114.99; westmarine.com) bolt on ...

Looking for the best Boat Trailer Jacks? ... Includes wheel and mounting hardware; Trailer jack sold separately; View Product. Fulton XP10 0101 Swivel Trailer Tongue Jack, 1200 Lbs. Capacity ...

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 ...