Description
The Grundfos 96525458 is a genuine OEM EPDM shaft seal engineered as a direct replacement for Grundfos CRN 32, CRN 45, CRN 90, and CRN 120 series vertical multistage centrifugal pumps. Designed to maintain a reliable, leak-free seal between the rotating pump shaft and the pump housing, this component is essential to protecting pump integrity and extending service life in demanding hydronic and industrial fluid-handling applications.
EPDM (Ethylene Propylene Diene Monomer) elastomer construction makes this shaft seal an excellent choice for systems handling water, hot water, and a wide range of mildly aggressive fluids where superior temperature resistance and chemical compatibility are required. Using a genuine Grundfos replacement seal ensures proper fit, correct material compatibility, and performance consistent with original factory specifications.
Key Features
- Genuine Grundfos OEM replacement shaft seal
- EPDM elastomer construction for broad chemical and temperature compatibility
- Compatible with Grundfos CRN 32, CRN 45, CRN 90, and CRN 120 pump models
- Engineered for reliable, leak-free sealing on vertical multistage centrifugal pumps
- Protects pump internals and extends overall pump service life
- Direct drop-in replacement — no modifications required
Compatible Pump Models
- Grundfos CRN 32
- Grundfos CRN 45
- Grundfos CRN 90
- Grundfos CRN 120
Application
Ideal for use in hydronic heating and cooling systems, pressure boosting, water treatment, and industrial process fluid handling where the CRN-series pump platform is deployed. Recommended for use whenever shaft seal wear, leakage, or scheduled preventive maintenance is indicated.







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