Lennox 74W71 Manifold R-134A maintaining the system's operational envelope

maintaining the system's operational envelope and factory specifications without the guesswork of universal mounting hardware

When performing a HVAC 24V coil replacement

Whether you are performing a seasonal tune-up or troubleshooting a failing thermopile or sensor signal

The 1/4-inch flare connections provide a mechanical gas-tight seal that stands up to vibration and thermal cycling without the need for brazing

Lennox 74W71 Manifold R-134A maintaining the system's operational envelopeThe 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