The Maytronics 9995356RD-EX is a replacement motor unit assembly for Dolphin robotic pool cleaners. It’s the sealed drive motor module that powers the cleaner’s internal movement and operating cycle, restoring operation when the original motor unit fails or becomes unreliable. This motor unit is made to fit specific Dolphin cleaner assemblies, including Dolphin Advantage RC, Advantage RC Plus, Advantage SWV, Commander, Deluxe, DX5, Explorer, Interactive, Pro, Sprite, and D1 Dolphin Pool Cleaner assemblies.