Lennox 16A77 Pilot Orifice
The Lennox 16A77 Pilot Orifice is a heavy-duty, brass component essential for maintaining the volumetric gas flow in intermittent and standing pilot ignition systems. This specific orifice features a 0.011-inch aperture and a short insert inlet design, ensuring precise fuel-to-air ratios for a stable pilot flame. Designed for compatibility with high-efficiency Lennox G11 and G12 series furnaces, this part is a direct replacement for Lennox 16A7701 and Baso model P-8-10192. In the field, technicians rely on this OEM Lennox furnace part to resolve issues with "lazy" pilot flames or erratic ignition sequencing caused by carbon buildup or internal erosion of the orifice bore. As a critical gas burner component, it facilitates the safe transition of the main burner valve by ensuring the pilot flame stays within the correct temperature profile for thermocouple or flame sensor excitation.
Key Benefits- Universal Compatibility: Engineered as a direct fit for Lennox 16A77 and 16A7701, supporting multiple residential furnace generations.
- Precision Metering: The machined 0.011-inch orifice provides consistent gas pressure regulation to the pilot assembly.
- Industrial Durability: Constructed from high-grade brass to resist corrosion and thermal fatigue in harsh combustion environments.
- OEM Standards: Meets original equipment manufacturer specifications for exact tolerances and reliable ignition performance.
Is the 16A77 different from the 16A7701?
No, the 16A77 and 16A7701 are technically identical parts. Both share the same physical dimensions and orifice sizing, meaning they are fully interchangeable in all Lennox heating applications.
What causes a pilot orifice to fail?
Most failures are due to the accumulation of "soot" or sulfur deposits from the gas supply, which restricts the port. Using a Lennox replacement pilot orifice restores the factory-specified flow rate that cleaning often cannot achieve.
Can this be used for both Natural Gas (NG) and Liquid Propane (LP)?
This specific orifice is typically sized for natural gas intermittent pilot systems. Always cross-reference your specific manifold pressure and appliance data plate before finalizing your selection for LP conversions.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $28.78
-65%$28.78
$10.07Product Information
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Description
The Lennox 16A77 Pilot Orifice is a heavy-duty, brass component essential for maintaining the volumetric gas flow in intermittent and standing pilot ignition systems. This specific orifice features a 0.011-inch aperture and a short insert inlet design, ensuring precise fuel-to-air ratios for a stable pilot flame. Designed for compatibility with high-efficiency Lennox G11 and G12 series furnaces, this part is a direct replacement for Lennox 16A7701 and Baso model P-8-10192. In the field, technicians rely on this OEM Lennox furnace part to resolve issues with "lazy" pilot flames or erratic ignition sequencing caused by carbon buildup or internal erosion of the orifice bore. As a critical gas burner component, it facilitates the safe transition of the main burner valve by ensuring the pilot flame stays within the correct temperature profile for thermocouple or flame sensor excitation.
Key Benefits- Universal Compatibility: Engineered as a direct fit for Lennox 16A77 and 16A7701, supporting multiple residential furnace generations.
- Precision Metering: The machined 0.011-inch orifice provides consistent gas pressure regulation to the pilot assembly.
- Industrial Durability: Constructed from high-grade brass to resist corrosion and thermal fatigue in harsh combustion environments.
- OEM Standards: Meets original equipment manufacturer specifications for exact tolerances and reliable ignition performance.
Is the 16A77 different from the 16A7701?
No, the 16A77 and 16A7701 are technically identical parts. Both share the same physical dimensions and orifice sizing, meaning they are fully interchangeable in all Lennox heating applications.
What causes a pilot orifice to fail?
Most failures are due to the accumulation of "soot" or sulfur deposits from the gas supply, which restricts the port. Using a Lennox replacement pilot orifice restores the factory-specified flow rate that cleaning often cannot achieve.
Can this be used for both Natural Gas (NG) and Liquid Propane (LP)?
This specific orifice is typically sized for natural gas intermittent pilot systems. Always cross-reference your specific manifold pressure and appliance data plate before finalizing your selection for LP conversions.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
