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Bosch 7738005397 Igniter Electrode with Washer Features:
- Produces the high voltage spark that lights the burner in compatible HVAC units.
- Supplied with the washer needed to seal and secure the mounting point at the combustion chamber wall.
- Two parallel steel rods extend past the insulator and bend inward at the tips.
- Factory set spark gap positions the arc correctly with no field bending or adjustment.
- White ceramic sleeve isolates the shaft where it passes through the chamber wall.
- Ceramic insulation holds up under sustained combustion heat.
- Nickel-plated flange with two screw holes for a fixed, repeatable mounting position.
-Ribbed barrel terminal at the base accepts a standard push on ignition lead.
- Alternate part number 7-738-005-397.
Additional Features:
The Bosch 7738005397 ignition electrode produces the high-voltage spark that lights the burner in compatible HVAC units, and it comes with the washer required to seal and secure the mounting point at the combustion chamber wall. Two parallel steel rods extend well past the insulator and bend inward at the tips, holding a factory-set spark gap so the arc forms in the correct position without any field bending or adjustment during installation. A white ceramic sleeve shields the shaft where it passes through the chamber wall, keeping the electrode electrically isolated from the metal housing under sustained heat. The nickel-plated flange includes two screw holes for a fixed, repeatable mounting position, while the ribbed barrel terminal at the base accepts a standard push-on ignition lead, making this a direct replacement for a worn or eroded original electrode.