Description
Lochinvar & A.O. Smith Gas Valve Assembly — Part No. 100172003
The Lochinvar & A.O. Smith 100172003 is a direct OEM replacement gas valve assembly engineered for precise gas flow regulation in compatible Lochinvar and A.O. Smith water heating and boiler equipment. Designed to restore original equipment performance, this gas valve assembly ensures safe, efficient, and dependable operation in residential and commercial applications.
Key Features
- OEM replacement gas valve assembly for Lochinvar and A.O. Smith equipment
- Engineered for precise gas flow control and reliable ignition sequencing
- Designed to restore original manufacturer performance specifications
- Built for compatibility with applicable Lochinvar and A.O. Smith water heater and boiler models
- Supports safe and efficient gas modulation in heating systems
Application
This gas valve assembly is intended as a direct replacement part for qualifying Lochinvar and A.O. Smith water heaters and boilers. Always verify model compatibility using your equipment’s serial and model number before installation. Installation should be performed by a qualified HVAC or plumbing technician in accordance with local codes and manufacturer guidelines.
Why Choose OEM Replacement Parts?
Using genuine OEM replacement components like the 100172003 Gas Valve Assembly helps maintain system efficiency, preserves equipment warranties, and reduces the risk of premature failure associated with non-OEM substitutes.







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