1、Simple Installation: Can be used in both single and tandem jack applications, electric powered trailer jack kit includes all necessary components for ease of installation. 2、Practical Use: The kit includes powered drive assembly, torsion stop tube with energy absorption device, replacement bevel gear, terminal box, wiring harness and switch box, hex coupling. 3、Heavy Load Capacity: With a lifting capacity of 12000lbs, the electric jack kit is extremely sturdy and reliable, making it an essential tool for towing and leveling RVs and trailers. 4、Premium Material: Made from premium materials, our electric trailer jack kit guarantees long lasting durability and reliable performance under various conditions. 5、User Friendly: Our electric powered trailer jack kit helps to significantly reduce manual labor and physical effort, providing optimum operational efficiency.