The U.S. Seal PS-1904 shaft seal is designed for compatible 3/4 inch shaft pump applications that benefit from a premium silicon carbide sealing interface. When rebuilding a pump with a larger shaft size, using the correct seal is essential not just for stopping leaks, but for protecting the motor and preserving the integrity of the full wet-end repair.This part is especially useful when the original seal has begun to leak under load, shows visible wear, or failed sooner than expected. Silicon carbide construction makes it an attractive upgrade path for technicians who want something more robust than a basic replacement.The PS-1904 is a smart service choice for repair work that values durability, precise compatibility, and a more professional finished result. U.S. Seal PS-1904 shaft seal For compatible 3/4 inch shaft applications Silicon carbide sealing surfaces Ideal for premium wet-end service and rebuild work Helps protect the motor side from moisture intrusion
![U.S. Seal Shaft Seal [PS-1904] [3/4" Shaft] [Silicon Carbide] (PS-1904)](https://cdn.shopify.com/s/files/1/1751/9347/products/35-423-1082_xl.jpg?v=1486197931&width=480)
