Lennox 74W71 Manifold 319825-402 The 5/8" x 1 7/8"

The 5/8" x 1 7/8" keyed shaft and reversible rotation capability provide the field flexibility needed for various airflow configurations

For contractors upgrading sets to modern standards

Common Questions Is the Teflon seal included with this valve kit

Enhanced Connectivity: Features Schrader valve depressors on both the straight and 90-degree flare nuts for rapid service port attachment

The 13-511-B15 is rated for saturated steam service up to 250°F (121°C)

Lennox 74W71 Manifold 319825-402 The 5/8" x 1 7/8"The Lennox 74W71 Gas Manifold (OEM part 103087 02) is a precision engineered component designed for high efficiency fuel distribution in Lennox gas furnaces and select commercial rooftop units. As a direct fit HVAC replacement part, it ensures balanced gas flow to the burner assembly, mitigating pressure fluctuations that cause combustion instability and resonance noise. Constructed from aluminized steel, this manifold resists the high heat corrosion