Extended 36-Inch Reach: The durable 36" lead offers maximum flexibility for routing through complex furnace

If the motor is seized or pulling high amps

as a Factory Authorized TXV Kit

and accidental physical damage

Always verify your specific model number against the HVAC part compatibility list

Trane SWT2979 Pressure Switch 318973-401 Extended 36-Inch Reach: The durableThe Trane SWT2979 Pressure Switch is a critical safety component designed for precise draft monitoring in high efficiency Trane and American Standard furnaces. As a OEM dual pressure switch, this part is the direct replacement for legacy part numbers BA20149 and C342634P62. This 2 stage air pressure switch features a dual diaphragm configuration engineered to sense specific vacuum thresholds: the high side is rated to open at 1. 93" W. C. and close at