Lennox 74W71 Manifold 322838-753 This heavy-duty control is built

This heavy-duty control is built to withstand high-vibration environments

specifically when dealing with 120VAC power supplies and probe-based sensing protocols

Reduced Maintenance: Arcing is minimized by high-purity contacts

and excessive heat at the bearing housing are standard indicators that the internal races or balls are compromised

Its cadmium-plated steel construction provides essential corrosion resistance

Lennox 74W71 Manifold 322838-753 This heavy-duty control is builtThe 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