Ao Smith 100338898 Spark Igniter Gasket Graphite

Product Description

The AO SMITH 100338898 is a graphite spark igniter gasket designed to seal the igniter assembly on water heater burner systems. At 0.04 inches thick, this gasket provides a reliable seal between the spark igniter and the burner access port, preventing combustion gas leaks and maintaining proper igniter positioning. It is a direct service replacement component installed by licensed plumbers and HVAC technicians during igniter replacement or routine burner service.

This gasket is suited for use in residential gas water heater applications where the spark igniter assembly requires resealing. It is typically replaced during igniter service calls, burner assembly overhauls, or any time the igniter is removed and reinstalled. The graphite construction provides heat resistance appropriate for burner compartment environments.

Key Features

• Graphite construction for heat resistance in burner compartment environments
• 0.04 inch thickness for precise igniter assembly sealing
• OEM-style replacement for reliable fitment and performance
• Seals igniter port to prevent combustion gas bypass

Compatibility

Designed as an OEM-style replacement spark igniter gasket for AO SMITH gas water heater systems. Consult the unit service manual or AO SMITH parts documentation to confirm fitment for the specific model before ordering.

Installation Notes

Installation should be performed by a licensed plumber or qualified gas appliance technician. Before servicing, shut off the gas supply and allow the burner assembly to cool completely. Inspect the mating surfaces for debris or damage before seating the new gasket. Follow all applicable local codes and the manufacturer service documentation during reassembly.

Technical Specifications

• Material: Graphite
• Thickness: 0.04 inches
• Component Type: Spark Igniter Gasket

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100338898