
Lennox 47K41 Gasket
The Lennox 47K41 is a critical OEM replacement part designed specifically for sealing the flue cover on compatible high-efficiency furnaces and packaged gas/electric units. In the field, a compromised flue cover gasket can lead to dangerous flue gas bypass or combustion air infiltration, which directly affects the safety and manifold pressure balancing of the burner assembly. This HVAC flue gasket is engineered with professional-grade thermal resistance to withstand localized heat at the heat exchanger transition point without degradation. Proper installation of the 47K41 gasket ensures system efficiency by maintaining the integrity of the airtight combustion seal, preventing moisture buildup and corrosive exhaust from damaging internal components. As a veteran-spec part, it provides the precise tolerances required for Lennox HVAC maintenance, ensuring a drop-in fit that eliminates the need for field modifications or generic adhesive solutions that often fail under load.
Key Benefits
- Prevents the hazardous escape of combustion gases into the cabinet or living space.
- Maintains critical system efficiency by ensuring proper drafting and heat exchanger pressure.
- Engineered as a genuine Lennox part for a guaranteed mechanical fit with the flue cover.
- High-temperature chemical and moisture resistance prevents premature hardening and seal failure.
- Facilitates accurate Lennox 47K41 compatibility for a wide range of residential and commercial models.
Common Questions
- How do I know if my flue cover gasket is failing? Look for signs of "sooting" around the flue pipe transition, visible condensation streaks on the cabinet, or a drop in induced draft pressure during diagnostics.
- Is the Lennox 47K41 cross-compatible with other brands? This is an OEM-specific part for Lennox, Armstrong, and Ducane equipment. Using a universal alternative is not recommended for combustion seals due to thermal rating requirements.
- Does this gasket require additional RTV sealant? Typically, these seals are designed to be "dry-fit" to the flue cover surface. Ensure the mating surface is completely clean of old residue before seating the new part.
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: $14.05
-65%$14.05
$4.92Lennox 47K41 Gasket
The Lennox 47K41 is a critical OEM replacement part designed specifically for sealing the flue cover on compatible high-efficiency furnaces and packaged gas/electric units. In the field, a compromised flue cover gasket can lead to dangerous flue gas bypass or combustion air infiltration, which directly affects the safety and manifold pressure balancing of the burner assembly. This HVAC flue gasket is engineered with professional-grade thermal resistance to withstand localized heat at the heat exchanger transition point without degradation. Proper installation of the 47K41 gasket ensures system efficiency by maintaining the integrity of the airtight combustion seal, preventing moisture buildup and corrosive exhaust from damaging internal components. As a veteran-spec part, it provides the precise tolerances required for Lennox HVAC maintenance, ensuring a drop-in fit that eliminates the need for field modifications or generic adhesive solutions that often fail under load.
Key Benefits
- Prevents the hazardous escape of combustion gases into the cabinet or living space.
- Maintains critical system efficiency by ensuring proper drafting and heat exchanger pressure.
- Engineered as a genuine Lennox part for a guaranteed mechanical fit with the flue cover.
- High-temperature chemical and moisture resistance prevents premature hardening and seal failure.
- Facilitates accurate Lennox 47K41 compatibility for a wide range of residential and commercial models.
Common Questions
- How do I know if my flue cover gasket is failing? Look for signs of "sooting" around the flue pipe transition, visible condensation streaks on the cabinet, or a drop in induced draft pressure during diagnostics.
- Is the Lennox 47K41 cross-compatible with other brands? This is an OEM-specific part for Lennox, Armstrong, and Ducane equipment. Using a universal alternative is not recommended for combustion seals due to thermal rating requirements.
- Does this gasket require additional RTV sealant? Typically, these seals are designed to be "dry-fit" to the flue cover surface. Ensure the mating surface is completely clean of old residue before seating the new part.
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.
Product Information
Product Information
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Description
The Lennox 47K41 is a critical OEM replacement part designed specifically for sealing the flue cover on compatible high-efficiency furnaces and packaged gas/electric units. In the field, a compromised flue cover gasket can lead to dangerous flue gas bypass or combustion air infiltration, which directly affects the safety and manifold pressure balancing of the burner assembly. This HVAC flue gasket is engineered with professional-grade thermal resistance to withstand localized heat at the heat exchanger transition point without degradation. Proper installation of the 47K41 gasket ensures system efficiency by maintaining the integrity of the airtight combustion seal, preventing moisture buildup and corrosive exhaust from damaging internal components. As a veteran-spec part, it provides the precise tolerances required for Lennox HVAC maintenance, ensuring a drop-in fit that eliminates the need for field modifications or generic adhesive solutions that often fail under load.
Key Benefits
- Prevents the hazardous escape of combustion gases into the cabinet or living space.
- Maintains critical system efficiency by ensuring proper drafting and heat exchanger pressure.
- Engineered as a genuine Lennox part for a guaranteed mechanical fit with the flue cover.
- High-temperature chemical and moisture resistance prevents premature hardening and seal failure.
- Facilitates accurate Lennox 47K41 compatibility for a wide range of residential and commercial models.
Common Questions
- How do I know if my flue cover gasket is failing? Look for signs of "sooting" around the flue pipe transition, visible condensation streaks on the cabinet, or a drop in induced draft pressure during diagnostics.
- Is the Lennox 47K41 cross-compatible with other brands? This is an OEM-specific part for Lennox, Armstrong, and Ducane equipment. Using a universal alternative is not recommended for combustion seals due to thermal rating requirements.
- Does this gasket require additional RTV sealant? Typically, these seals are designed to be "dry-fit" to the flue cover surface. Ensure the mating surface is completely clean of old residue before seating the new part.
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.












