1. Go to the Pacific Hydrostar website at https://www.pacifichydrostar.com.
2. Click on the "Products" tab.
3. Select the product category that your Hydrostar pump belongs to.
4. Click on the model number of your Hydrostar pump.
5. Scroll down to the "Parts" section.
6. Click on the "Download Parts List" button.
The parts list will be downloaded as a PDF file. You can view the parts list and print it out if needed.