Lennox 33J95 Orifice 318973-401 Extended Motor Life: Uses fan

Extended Motor Life: Uses fan speed modulation rather than harsh on/off cycling

It replaces older part numbers like 626419 and cross-references with 36T01B3 and A1505

Optimized Performance: The 1140 RPM rating is calibrated for specific blade pitches

the effective UVC output degrades over time

it reacts to internal pressure and temperature changes to optimize heat exchange

Lennox 33J95 Orifice 318973-401 Extended Motor Life: Uses fanThe Lennox 33J95 is a critical natural gas burner orifice designed for precise fuel metering in high efficiency residential heating systems. Engineering for specific HVAC gas pressure regulation, this OEM component ensures the correct manifold pressure is maintained for optimal combustion. As a genuine Lennox replacement part, it is frequently utilized in 80MGF and 80UHG series furnace models, where maintaining a balanced air to gas ratio is vital for