Lennox 21J03 Contactor 318518-761 this draft inducer motor ensures

this draft inducer motor ensures proper pressure switch engagement and optimal combustion airflow

This component is identical to 3ARR3MARS71 and serves as a drop-in replacement for thousands of OEM models

You can set the SPDT contact to trip at any specific degree of rotation to match the requirements of your damper sequence of operations

Can this unit be installed in any orientation

this Copeland compressor part maintains system integrity by preventing simultaneous operation of conflicting loads through superior mechanical interlocking

Lennox 21J03 Contactor 318518-761 this draft inducer motor ensuresLennox 21J03 Contactor 24V DPDT 25Amp 21J03 is the updated version for 37575