Tired of cranking that trailer jack by hand? This kit is a game-changer. It converts your existing manual, single-speed square tube trailer jack into a smooth electric power lifter. It's built tough to handle up to 12,000 lbs, so it's great for RVs, touring cars, campers, and bigger trailers. The 12V motor is way more efficient and quieter than a lot of others out there – about 50% quieter and 60% more efficient, they say. It lifts smoothly at about 3 inches per minute under load. Don't worry about power failures either; you can still manually crank it if needed. The kit comes with everything: the motor drive assembly, torque stop tube, wiring harness, a waterproof switch box with a rocker switch, and even a reset-able 25-amp circuit breaker for safety. Installation is pretty straightforward if you're handy. Fits common part numbers like 1824200100, BD1046130-00. Give your back a break and add some serious convenience to your setup.