Description
Lochinvar & A.O. Smith 100208664 Magnesium Anode Kit Overview
The Lochinvar & A.O. Smith 100208664 is a genuine OEM magnesium anode rod kit designed to protect water heater tanks from internal corrosion and extend equipment service life. Measuring 3/4″ in diameter and 51.5″ in length, this anode rod is engineered to fit compatible Lochinvar and A.O. Smith water heater models, providing a reliable sacrificial barrier between the tank lining and corrosive minerals in the water supply.
How Magnesium Anode Rods Work
Anode rods function through a process called electrochemical sacrificial protection. The magnesium material is more electrochemically active than the steel tank walls, so it corrodes preferentially — drawing corrosive elements away from the tank itself. Regular inspection and timely replacement of the anode rod is one of the most effective ways to maximize the lifespan of a commercial or residential water heater.
Key Features
- Genuine OEM Lochinvar & A.O. Smith replacement part
- Magnesium construction for superior sacrificial corrosion protection
- Dimensions: 3/4″ diameter x 51.5″ length
- Designed for compatibility with select Lochinvar and A.O. Smith water heater models
- Helps extend tank service life and maintain water heater efficiency
- Easy drop-in replacement for routine maintenance
Application & Compatibility
This anode kit is intended for use with compatible Lochinvar and A.O. Smith water heater units. Always verify your specific model number against manufacturer documentation before ordering to ensure proper fit. Replacing the anode rod at recommended service intervals is a best practice for any preventive maintenance program.
Why Choose OEM Parts?
Using genuine OEM components ensures the correct material grade, dimensions, and thread specifications — helping you avoid premature failure and maintain any applicable equipment warranties. The Lochinvar & A.O. Smith 100208664 Mag Anode Kit delivers the quality and reliability that HVAC and plumbing professionals expect.







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