Tongue jacks for boat trailers come in a variety of shapes and sizes. ... Swing Jacks. The Lift: Hand-crank jacks such as West Marine’s 1,500-pound-capacity swivel-mount model ($114.99; ... Power ...

Replacing an equipment trailer’s tired, worn-out electric tongue jack is easy with the Husky Brute Power Jack. ... a 30A inline circuit breaker; and a manual, emergency crank.