US Seal PS-3890 Buna Shaft Seal, 5/8" Shaft (PS-3890)

Pump Parts
US Seal Manufacturing
PS-3890
35-423-1088
COMPARE AT $33.88
OUR PRICE $26.82
STOCK STATUS IN STOCK Ships Usually the Same/Next Business Day
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Under 25 lbs. Contiguous USA
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US Seal PS-3890 Buna Shaft Seal, 5/8" Shaft (PS-3890) is a replacement sealing part for compatible US Seal Manufacturing equipment. It helps create or restore a watertight seal at the matching connection point, reducing leaks and supporting proper equipment operation after service, disassembly, or component replacement.

Seals, o-rings, and gaskets should generally be replaced whenever the related assembly is opened or when the original part is flattened, cracked, hardened, swollen, or leaking. Confirm part number PS-3890, material, shaft size, inside diameter, outside diameter, and application before installation.

  • Replacement shaft seal for compatible US Seal Manufacturing equipment
  • Supports proper fit and function during leak repair and sealing service
  • Useful for repair, maintenance, rebuild, or equipment restoration work
  • Match part number PS-3890 with the existing component before ordering
  • Verify model, dimensions, color, material, connection type, and electrical rating where applicable
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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