U.S. Seal Shaft Seal [PS-3986] [3/4" Shaft] [Viton] (PS-3986)
| Pump Parts | |
| US Seal Manufacturing | |
| PS-3986 | |
| 35-423-1044 |
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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
US Seal Manufacturing – Pump Shaft Seals, Mechanical Seals and Replacement Seal Kits |
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Who is US Seal Manufacturing?
US Seal Manufacturing is a leading producer of mechanical seals and sealing components, widely used in pool, spa, and water system pumps. Since 1985, the company has built a reputation for precision engineering and dependable performance in demanding fluid-handling applications. What products does US Seal Manufacturing specialize in?US Seal Manufacturing specializes in pump shaft seals, mechanical seals, and replacement seal kits. Their products are designed to prevent water leakage along pump shafts, protecting motors and maintaining proper system operation. These components are essential for pool and spa pump maintenance and repair. Why choose US Seal Manufacturing parts for your pool or spa?US Seal products are known for durability, precision fit, and resistance to heat and chemical exposure. Their seals are engineered to perform reliably in chlorinated and saltwater environments. Pool professionals choose US Seal for high-quality replacement parts that help extend pump life and prevent costly damage. How do you identify and choose the correct US Seal Manufacturing part?To select the correct seal, it’s important to match the pump model, shaft size, seal type, and material compatibility. Reviewing part numbers and specifications ensures proper fit and performance. Choosing the right seal helps prevent leaks and maintain efficient pump operation. Need help finding the right US Seal Manufacturing part?At Bath & Spa Parts Online, we carry a wide selection of US Seal Manufacturing pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support. |
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