Lochinvar & A.O. Smith 100133536 Seal Kit

The Lochinvar & A.O. Smith 100133536 Seal Kit is a critical maintenance component designed for high-performance commercial pump applications. Cross-referenced as the ARM1001, this OEM kit is engineered to provide a watertight mechanical seal for Lochinvar CW Series pumps, specifically models CW 475 through CW 1350. For a tech in the field, ensuring the integrity of the pump housing is paramount to preventing cavitation and pressure loss in high-demand hydronic systems. This kit includes the exact elastomer gaskets and mechanical seals required to restore factory tolerances and prevent leaks during high-temperature cycles. Whether you are performing a seasonal teardown or responding to a failing pump shaft seal, using the genuine Lochinvar 100133536 ensures HVAC system compatibility and prevents the premature wear often associated with aftermarket alternatives. Rely on this kit for precise fitment in both A.O. Smith and Lochinvar water heating assemblies, maintaining the operational efficiency of large-scale boiler loops.

• Universal Compatibility: Serves as a direct 1:1 replacement for ARM1001 and fits a wide range of Lochinvar CW pumps (475-1350).
• Industrial-Grade Sealing: Features high-temp resistant materials to withstand the thermal stresses of commercial water heating environments.
• Leak Mitigation: Specifically designed to stop pump shaft leaks and protect the motor assembly from moisture damage.
• Easy Installation: Pre-measured gaskets and seals reduce downtime during critical HVAC service calls.

• Is the 100133536 interchangeable with the ARM1001? Yes, these part numbers are functionally identical and serve the same pump seal kit applications.
• Which Lochinvar models use this kit? It is the standard service kit for CW Series pumps, including models CW475, CW570, CW665, CW760, CW855, CW940, CW1120, CW1210, and CW1350.
• Does this kit include the mechanical shaft seal? Yes, the 100133536 kit contains the necessary mechanical components to reseal the pump housing and protect the internal drive.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.