Description
The Lochinvar & A.O. Smith 100208410 is an OEM wet rotor circulator pump kit engineered as a direct replacement for Lochinvar and A.O. Smith boiler and water heating systems. Designed with a wet rotor motor configuration, this kit eliminates the need for external shaft seals and bearings by allowing system water to lubricate and cool the rotor — resulting in quieter operation, reduced maintenance, and extended service life.
Product Overview
This circulator pump kit is purpose-built to restore proper hydronic circulation in Lochinvar and A.O. Smith heating systems. Using genuine OEM components ensures compatibility and performance that aftermarket alternatives cannot guarantee.
Key Features
- OEM replacement wet rotor circulator pump kit for Lochinvar & A.O. Smith systems
- 1/6 HP motor rating for efficient hydronic fluid circulation
- 115V single-phase power supply compatibility
- Wet rotor design — water-lubricated for quiet, low-maintenance operation
- Eliminates external shaft seals and bearings, reducing potential failure points
- Direct fit replacement ensures proper system performance and longevity
- Ideal for residential and light commercial boiler and water heating applications
Specifications
- Part Number: 100208410
- Motor Type: Wet Rotor
- Horsepower: 1/6 HP
- Voltage: 115V
- Application: Lochinvar & A.O. Smith Boilers / Water Heaters
Application
This pump kit is designed for use in hydronic heating systems manufactured by Lochinvar and A.O. Smith. It is the recommended OEM solution for technicians performing circulator pump replacements or system refurbishments, ensuring restored flow rates and system efficiency.







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