Lennox 89M57 Gas Valve 30067439-890 Mechanical Protection: Optimized to detect

Mechanical Protection: Optimized to detect belt loss and coupling shear even at low load reductions

1-Pole Configuration: Built with a single switched pole and a permanent shunt to support continuous power requirements for auxiliary components

ensuring reliable plunger actuation across refrigeration

including boilers and furnaces

or Miller furnace

Lennox 89M57 Gas Valve 30067439-890 Mechanical Protection: Optimized to detectThe Lennox 89M57 is a critical OEM replacement gas valve designed for single stage heating legacy systems. This 24V gas valve is factory configured for natural gas with a 3. 5" WC manifold pressure setting, though it often includes a propane conversion kit for versatile field application. Engineered for precision, the unit features a 1 2" NPT inlet and outlet, ensuring a direct fit for standard gas manifold assemblies. As a veteran grade HVAC