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Standardized Fit: The 1/4-20" threaded shaft and 22-inch leads allow for direct replacement in HVAC fan motor assemblies
you should verify your specific model number (e
providing a clean and secure professional finish
Easy Installation: Standard 2-wire lead terminals and mounting brackets allow for a fast swap during service calls
Lochinvar & A.O. Smith 100170487 Upper Sensor 321042-401 Standardized Fit: The 1/4-20" threadedThe Lochinvar & A. O. Smith 100170487 Upper Sensor (formerly TST1187) is a critical thermistor based component engineered for high precision temperature monitoring in residential and commercial water heaters. As a direct immersion NTC temperature sensor, it provides real time resistance feedback to the control board, ensuring the appliance maintains optimal setpoints while preventing dangerous high limit conditions. This OEM water heater sensor is
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