Pump Parts. Check out our replacement parts for pond pumps to extend reliable use. Aquascape replacement parts for popular pond equipment ensure proper fit and function. We offer a variety of products such as impellers and pump covers that will help keep your pump up. and running and your pond clean and clear. If your submersible pump stops pushing water then check it to see if there are replaceable pump parts. In some magnetic drive pumps, for example, you might only need to replace the impeller and/or pump cover to make the pump run like new again! Aquascape pump parts