Lochinvar & A.O. Smith 100074640 Ignitor 319825-402 Airtight Performance: High-temperature material prevents

Airtight Performance: High-temperature material prevents flue gas leakage and ensures consistent draft inducer operation

Mounting Kit to Mount VA-715X or VA-720X Series Electronic Actuators to 1/2"-3" Honeywell V5011A

Flexible Connectivity: Standard barbed fitting ensures a secure grip on pneumatic tubing

replacing the entire assembly is often the standard practice to ensure long-term reliability and compliance with original equipment manufacturer specifications

Lochinvar & A.O. Smith 100074640 Ignitor 319825-402 Airtight Performance: High-temperature material preventsThe Lochinvar & A. O. Smith 100074640 Ignitor is a critical genuine OEM ignition component engineered for high efficiency condensing water heaters and commercial boiler systems. Built to survive the rigorous thermal cycling of modern hydronic equipment, this black box ignitor assembly provides the high voltage spark necessary for consistent burner ignition and reliable system startup. As a standard replacement for Lochinvar Knight boilers and A. O.