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While this is the 100187881 spark ignitor
Optimized Construction: Built with a CWLE rotation and standard 115V single-phase power requirements for straightforward installation
3-speed direct drive blower motor engineered for consistent airflow in residential furnaces and air handlers
this bill of materials (875) typically includes the necessary mounting grommets and sleeves for standard installation
White Rodgers 789A-914A1 Ignitor 321142-301 While this is the 100187881The White Rodgers 789A 914A1 Ignitor is a high performance 120V nitride ignitor engineered for precise ignition in modern furnace hot surface ignition (HSI) systems. This silicon nitride furnace igniter serves as the direct replacement for 1017743S, 921074, and 632504, specifically optimized for Nordyne gas fired equipment. Unlike older silicon carbide components, this 789A 914A1 nitride upgrade features superior thermal shock resistance and high