Description
Lochinvar & A.O. Smith 100233660 Front Header Gasket
Keep your Lochinvar or A.O. Smith heating system operating at peak efficiency with the genuine OEM 100233660 Front Header Gasket. Engineered to exact manufacturer specifications, this replacement gasket restores a secure, leak-free seal at the front header of compatible boilers and water heaters, helping prevent costly downtime and water damage.
Why Choose a Genuine OEM Gasket?
Using an authentic Lochinvar & A.O. Smith replacement part ensures proper fit and long-lasting performance. Aftermarket substitutes may not meet the precise dimensional and material tolerances required for a reliable seal, potentially leading to premature failure or voided equipment warranties.
Key Features
- Genuine OEM replacement part from Lochinvar & A.O. Smith
- Designed for front header sealing on compatible boiler and water heater models
- Precision-engineered for exact fit and reliable, leak-free performance
- Helps maintain system efficiency and prevents heat loss or water leakage
- Supports proper system pressure integrity at the header connection
- Direct drop-in replacement — no modification required
Application
- Compatible with select Lochinvar and A.O. Smith boiler and water heater models requiring front header gasket replacement
- Ideal for scheduled maintenance, service calls, or emergency repairs
Installation Notes
Always verify compatibility with your specific unit model number before installation. Ensure the mating surfaces are clean and free of debris prior to fitting the new gasket. Follow all manufacturer guidelines and applicable local codes during installation.







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