Trane SWT1257 Limit Switch 318973-401 Utilizing authentic Lochinvar boiler components

Utilizing authentic Lochinvar boiler components maintains the original equipment’s flue gas CO2 levels and prevents rapid carbon build-up on the heat exchanger

you should never downsize amperage

Always match the part number to your specific model and serial number

Easy Installation: Features integrated straps for a secure wrap around the compressor shell

including Coleman

Trane SWT1257 Limit Switch 318973-401 Utilizing authentic Lochinvar boiler componentsThe Trane SWT1257 Limit Switch is a critical safety component designed for heavy duty furnace high limit switch applications. This genuine OEM Trane part (also referenced as SWT01257) functions as a normally closed thermal protector that triggers an automatic shutdown if heat exchanger temperatures exceed safe operating parameters. Rated with an L160 30F fixed set point, the switch is engineered to open at 160F and features an auto reset mechanism