816304-321K ARMSTRONG S-55 Circulator Pump Noryl Impeller 4.75" Diameter
This genuine Armstrong replacement impeller is designed for the S-55 circulator pump, specifically fitting bearing assemblies S-55 and 1050 2B. It replaces part number 816304-321 and is ideal for maintaining optimal pump performance in HVAC and industrial motor applications.
Key Specifications
- Frame / Diameter: 4.75"
- Material: Noryl (Plastic)
Product Features & Fitment
The package includes the impeller, mechanical seal, casing gasket, and impeller nut/washer for a complete replacement solution. Engineered for direct fitment, this impeller ensures reliable operation and easy installation within compatible Armstrong S-55 pump assemblies.
Cross Reference
- Part No. 816304-321
