The U.S. Seal PS-3986 shaft seal is built for compatible 3/4 inch shaft pump applications and uses Viton sealing material for a more premium rebuild path. When the shaft seal in a larger-shaft pump fails, the consequences can escalate quickly, which is why using a correct-fit replacement with strong material properties is such an important part of the repair.This model is especially useful when the original seal has begun leaking, has worn prematurely, or when the application justifies a Viton upgrade. With the correct shaft-size match and a premium seal material, the PS-3986 helps raise the overall quality of the rebuild.It is a practical option for service work that values durability, compatibility, and a more serious approach to pump restoration. U.S. Seal PS-3986 shaft seal For compatible 3/4 inch shaft applications Viton sealing material Premium choice for supported larger-shaft pump repairs Helps improve sealing quality and rebuild confidence
![U.S. Seal Shaft Seal [PS-3986] [3/4" Shaft] [Viton] (PS-3986)](https://cdn.shopify.com/s/files/1/1751/9347/products/35-423-1044_xl.jpg?v=1486197960&width=480)
