Description
The Lochinvar & A.O. Smith 100287094 Heat Exchanger Top Plate Gasket is an OEM-quality replacement part engineered to maintain a secure, leak-free seal at the top plate of the heat exchanger assembly. Designed specifically for compatible Lochinvar and A.O. Smith heating equipment, this gasket helps preserve system integrity, prevent heat loss, and protect surrounding components from the damaging effects of combustion gas or fluid leaks.
Key Features
- OEM replacement gasket for Lochinvar & A.O. Smith heating equipment
- Engineered for precise fit at the heat exchanger top plate interface
- Helps maintain a reliable, leak-free seal under normal operating conditions
- Protects system components from combustion gas and fluid intrusion
- Supports optimal heat transfer efficiency and boiler performance
- Direct drop-in replacement — no modification required
Application
- Compatible with select Lochinvar and A.O. Smith boiler and water heating equipment
- Ideal for scheduled maintenance, service calls, and heat exchanger rebuilds
Why Choose OEM Replacement Parts?
Using genuine or OEM-equivalent replacement gaskets ensures your equipment operates as designed. An improperly sealed heat exchanger top plate can lead to reduced efficiency, combustion gas leaks, or water damage. The 100287094 gasket restores factory-spec sealing performance, helping extend equipment life and maintain safe operation.
Part Information
- Brand: Lochinvar & A.O. Smith
- Part Number: 100287094
- Part Type: Heat Exchanger Top Plate Gasket







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