Description
Overview
The Lochinvar & A.O. Smith 100287090 is an OEM replacement burner gasket engineered to provide a precise, leak-free seal in compatible burner assemblies. With a 4MM thickness and 121MM outer diameter, this gasket is dimensionally exact, ensuring a proper fit and long-lasting performance in demanding heating applications.
Key Features
- OEM replacement part from Lochinvar & A.O. Smith
- 4MM thickness for consistent compression and sealing
- 121MM outer diameter for accurate fitment in compatible burner assemblies
- Designed to maintain a secure, gas-tight seal at the burner interface
- Helps restore proper burner operation and combustion efficiency
- Direct replacement to minimize downtime during service calls
Application
This burner gasket is intended for use in Lochinvar and A.O. Smith heating equipment requiring a 4MM x 121MM OD burner gasket. Always verify compatibility with your specific equipment model before installation.
Specifications
- SKU: 100287090
- Thickness: 4MM
- Outer Diameter: 121MM
- Type: Burner Gasket
- Brand: Lochinvar & A.O. Smith







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