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Armstrong 818254-003K S-25 Bearing Assembly with Impeller

Armstrong 818254-003K S-25 Bearing Assembly with Impeller

Brand: Armstrong SKU: 818254-003K
Regular price $387.95 USD
Regular price Sale price $387.95 USD
Sale Out of Stock - Call to Order
Ships Direct from Distribution β€” Dispatches in 24–48 Hrs
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Performance ParameterEngineering Baseline Value
Manufacturer Part Number (MPN)818254-003K
Model DesignationArmstrong S-25

Maintain peak hydronic system efficiency by restoring your pump's rotating assembly with the high-quality 818254-003K replacement kit. Designed specifically for the Armstrong S-25 series, this bearing assembly includes the factory-matched impeller to ensure seamless integration and long-term durability in your circulating system.

The assembly works by housing the hardened steel shaft within high-precision bearings to minimize friction and prevent premature motor failure. By replacing the entire bearing assembly and impeller as a single unit, you eliminate shaft wear issues and potential seal leaks often associated with partial repairs, effectively returning your pump to original OEM performance specifications.

Key System Performance Baselines:

  • Enhanced Longevity: High-grade internal bearings reduce rotational vibration for extended service life.
  • Hydraulic Efficiency: Factory-calibrated impeller promotes optimal fluid movement and pressure consistency.
  • Seamless Fit: Engineered for direct compatibility with S-25 pumps to simplify field installation.

⚠️ Application Profile: This bearing assembly is essential for institutional, commercial, and residential HVAC hydronic heating and cooling systems utilizing the Armstrong S-25 circulator pump.

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