Trane SWT1635 Limit Switch The MARS 12751 fits most

The MARS 12751 fits most round-style mounting brackets with its standard 2-inch diameter

Advanced Insulation: High-temperature fiberglass lead insulation rated for 200°C protects against internal furnace heat

Automatic Reset Functionality: Restores circuit continuity automatically after the system cools

using the designated OEM part number 1008418 ensures the physical mounting and pressure ratings match your specific furnace model

which is vital for preventing premature glass failure in steam service environments

Trane SWT1635 Limit Switch The MARS 12751 fits mostThe Trane SWT1635 Limit Switch is a critical OEM replacement component designed for high limit thermal protection in residential and light commercial HVAC units. Engineered with a 3 inch insertion depth, this furnace limit switch monitors internal plenum temperatures to prevent heat exchanger damage. This L180 30 limit switch is factory calibrated to trip and open the circuit at 180F, featuring an automatic reset that restores operation once the