Marine Grade Quality Replacement Parts for Yamaha Outboard Motors. It is recommended for all marine engines, that the water pump is inspected and the impeller is replaced annually or every 100hours of use, whichever soonest. Replaces : 6E0-44352-00-00 for Yamaha P/N Interchange part numbers used for reference only Specification: Water pump impeller for Yamaha Outboard Motors: F4 4-Stroke 4hp 1999 - 2009 4hp 2-Stroke 1984 1999 5hp 2-Stroke 1984 2002 Impeller Dimensions: No. : 6 Internal Diameter: 11.00mm External Diameter: 40.00mm Depth: 12.60mm Package Includes: 1 Piece Water Pump Impeller When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''''''''''''''''''''''''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it! Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store