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For reliable operation and drainage
It is a verified technical replacement for legacy part numbers E020-70021583 and E020-70021691
When troubleshooting OEM heater motor replacements
Technical professionals value this series for its internal inherent protection and axial/radial compliance
Durable Construction: Built with a corrosion-resistant frame and high-quality bearings for long-term operational stability
Lochinvar & A.O. Smith 100074640 Ignitor 340793-762 For reliable operation and drainageThe 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.