U.S. Seal Shaft Seal [PS-2131] [5/8" Shaft] [Buna] (PS-2131)

Pump Parts
US Seal Manufacturing
PS-2131
35-423-1070
COMPARE AT $19.74
OUR PRICE $11.27
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-2131 shaft seal is intended for compatible 5/8 inch shaft pump applications where a Buna replacement is needed to bring the wet end back into proper condition. A quality shaft seal matters because it protects the motor side from moisture while allowing the pump to continue operating smoothly under normal load.

This replacement is especially useful when the original seal has begun to leak, shows signs of age-related wear, or can no longer be trusted in a rebuild. Installing the right shaft seal at the right time often prevents a small pump repair from becoming a much more expensive motor problem.

The PS-2131 is a practical option for service professionals and serious repair buyers who want the rebuild to be accurate, dependable, and worth the effort.

  • U.S. Seal PS-2131 shaft seal
  • For compatible 5/8 inch shaft applications
  • Buna sealing material
  • Useful when the original seal is worn or leaking
  • Supports cleaner and more dependable rebuild results
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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