White Rodgers 789A-914A1 Ignitor 321042-401 Featuring a 3-inch bulb length

Featuring a 3-inch bulb length and a 3/8-inch bulb diameter

Key Benefits System Compatibility: Explicitly engineered for 2-channel to 4-channel control setups in Lochinvar and A

The unit utilizes 1/4" NPT connections and is equipped with a high-grade EPDM trim

allowing for optimal CFM adjustment

simplifying the gas regulator installation process

White Rodgers 789A-914A1 Ignitor 321042-401 Featuring a 3-inch bulb lengthThe 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