U.S. Seal Shaft Seal [PS-3868] [3/4" Shaft] [Viton]

Pump Parts
US Seal Manufacturing
PS-3868
35-423-1021
COMPARE AT $19.74
OUR PRICE $11.28
STOCK STATUS IN STOCK Ships Usually the Same/Next Business Day
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Under 25 lbs. Contiguous USA
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The U.S. Seal PS-3868 shaft seal is designed for compatible 3/4 inch shaft applications and features Viton sealing material for service work that demands a more premium seal option. In larger shaft pumps, rebuild quality depends heavily on using the correct wear parts, and the shaft seal is one of the most important parts to get right.

This replacement is especially useful when the original seal has begun to leak, shows advanced wear, or the application calls for a Viton-based solution. Matching the correct shaft size while stepping up material quality helps protect the investment in the full rebuild.

The PS-3868 is a practical premium repair part for technicians and buyers who want stronger material performance in a compatible larger-shaft pump.

  • U.S. Seal PS-3868 shaft seal
  • For compatible 3/4 inch shaft applications
  • Viton sealing material
  • Premium option for larger-shaft rebuilds
  • Helps restore dependable sealing and better material performance
US Seal Manufacturing – Pump Shaft Seals, Mechanical Seals and Replacement Seal Kits
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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