1. Powergearusa.com for Kwikee
2. IF you need a control module or motor, and your step has the original Orange or Red module, there are no parts available separately. You MUST purchase a changeout kit that includes a new motor, a new control module and new gear and linkage assbly as well as mount hardware and new door magnets.
3. If the problem is broken linkage arms on the actual steps to the platforms, you will need to purchase a complete new step. Doug