Lennox 27H87 Limit Switch This gasket is compatible with

This gasket is compatible with several Williams furnace series

Precision Thermal Calibration: Ensures the York S1-025-26392-002 reacts accurately at its 160-degree threshold for optimal safety

enabling HVAC contractors to restore system reversing functionality without the need for refrigerant recovery or system evacuation

replacing the assembly is a common solution

allowing for precise fitment on different motor shaft sizes (hub sold separately)

Lennox 27H87 Limit Switch This gasket is compatible withThe Lennox 27H87 Limit Switch is a critical OEM safety component engineered for precise thermal management in high performance heating systems. This 120 160F auto limit switch is specifically designed to monitor furnace plenum temperatures, providing a fail safe against overheating by interrupting the burner circuit if thresholds exceed the factory calibrated 160F limit. As a veteran grade HVAC replacement part, the 27H87 ensures seamless integration