Always match the 170-200F specs of the 1370913S for the specific application

With power disconnected and the part at room temperature

With a mechanical life rating of 10 million cycles and an integrated LED status indicator

While both are 10

A technician should check for continuity across the terminals when the furnace is cool

Bard 8402-019 Thermal Cutoff Always match the 170-200F specsThe Bard 8402 019 Thermal Cutoff is a critical safety component designed for HVAC high limit protection. This 128C thermal fuse link serves as a non resettable safety device that monitors ambient temperatures within the cabinet or heater assembly. When the Bard replacement part detects a temperature excursion exceeding its 128 degrees Celsius rating, it opens the electrical circuit to prevent equipment damage and potential fire hazards. This thermal