Lochinvar & A.O. Smith 100208084 Gasket

The Lochinvar & A.O. Smith 100208084 Gasket is a high-temperature sealing component engineered for industrial and residential hydronic systems. This authentic OEM part is the direct technical replacement for legacy part numbers GKT2513 and GKT2513K. Designed to maintain the pressure boundary within the heat exchanger and burner assembly, this element gasket ensures a gas-tight seal, preventing dangerous combustion leaks and maintaining peak thermal efficiency. As a veteran-preferred boiler replacement part, it is frequently utilized in Lochinvar Knight and A.O. Smith SIT series units. The 100208084 is fabricated from durable, heat-resistant rubber compounds capable of withstanding the rigorous thermal cycling inherent in high-efficiency standard gas boilers. For contractors performing annual maintenance or emergency repairs, verifying the integrity of the burner gasket is critical to preventing scale buildup and ensuring smooth ignition cycles. This precise-fit component supports system longevity by protecting internal electronics from moisture and heat exposure.

Key Benefits for Technicians:

• Direct OEM Compatibility: Engineered as the exact replacement for GKT2513 and GKT2513K, ensuring zero-clearance fitment.
• High-Temperature Resistance: Maintains structural integrity under extreme heat to prevent boiler gasket leaks.
• System Efficiency: Restores the airtight seal required for optimal combustion and lower HVAC repair costs.
• Broad Application Range: Compatible with various Lochinvar SIT and SDT models, easing inventory management for service trucks.

Common Questions:

Is the 100208084 interchangeable with the GKT2513?
Yes, the 100208084 is the updated manufacturer part number and is identical in specifications and material properties to the discontinued GKT2513 and GKT2513K.

When should this burner gasket be replaced?
Technicians should inspect the gasket during every heat exchanger cleaning. If the rubber shows signs of compression set, cracking, or hardening, it must be replaced to prevent safety hazards.

Does this fit all Lochinvar Knight models?
While widely used in the Knight series, always confirm your specific model and serial number, as different BTU inputs may require specific gasket dimensions.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.