Lennox 58W14 Gasket
The Lennox 58W14 Header Box Gasket is a critical OEM replacement component designed to provide a high-integrity seal between the secondary heat exchanger and the header box assembly. This technical seal is specifically engineered for high-efficiency condensing furnaces, such as the Lennox G61MPV and G61V series, where managing flue condensate is vital. Measuring approximately 4.75 by 17.00 inches, the 58W14 header box gasket ensures that combustion byproducts and corrosive condensate remain contained within the drain system, preventing hazardous leaks and protecting the furnace chassis from premature oxidation. As a genuine Lennox furnace replacement part (also identified by manufacturer number 42381-004), it maintains the precise pressure differentials required for the combustion air inducer to operate within factory specifications. For contractors performing preventative maintenance or heat exchanger teardowns, replacing this gasket is a non-negotiable step to ensuring long-term system efficiency and flue gas safety.
Key Benefits for HVAC Technicians- Precise OEM Fitment: Designed specifically for the Lennox 58W14 footprint, eliminating the need for field modifications or RTV silicone workarounds.
- Condensate Management: Effectively seals the header box to prevent acidic condensate from leaking onto electrical components or the furnace floor.
- Operational Safety: Maintains a gas-tight seal to prevent the escape of CO and other combustion gases into the ambient air.
- High-Temperature Resistance: Constructed from professional-grade materials capable of withstanding the thermal cycling of modern high-efficiency heat exchangers.
Which furnace models are compatible with the 58W14?
This gasket is primarily used in Lennox G61 series high-efficiency units, including the G61MPV and G61V models. Always verify the part number against your specific unit's heat exchanger assembly diagram.
Can I reuse the old gasket when cleaning the header box?
It is standard field practice to replace the header box gasket whenever the seal is broken. Compressed or degraded gaskets often fail to reform a reliable seal, leading to secondary trips of the pressure switch or internal corrosion.
Does this part include the mounting screws?
No, this is the 58W14 individual gasket. Retain existing hardware or source high-purity stainless steel fasteners to prevent thread seizure in the collector box frame.
This item is not eligible for free shipping.
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: $14.92
-65%$14.92
$5.22Lennox 58W14 Gasket
The Lennox 58W14 Header Box Gasket is a critical OEM replacement component designed to provide a high-integrity seal between the secondary heat exchanger and the header box assembly. This technical seal is specifically engineered for high-efficiency condensing furnaces, such as the Lennox G61MPV and G61V series, where managing flue condensate is vital. Measuring approximately 4.75 by 17.00 inches, the 58W14 header box gasket ensures that combustion byproducts and corrosive condensate remain contained within the drain system, preventing hazardous leaks and protecting the furnace chassis from premature oxidation. As a genuine Lennox furnace replacement part (also identified by manufacturer number 42381-004), it maintains the precise pressure differentials required for the combustion air inducer to operate within factory specifications. For contractors performing preventative maintenance or heat exchanger teardowns, replacing this gasket is a non-negotiable step to ensuring long-term system efficiency and flue gas safety.
Key Benefits for HVAC Technicians- Precise OEM Fitment: Designed specifically for the Lennox 58W14 footprint, eliminating the need for field modifications or RTV silicone workarounds.
- Condensate Management: Effectively seals the header box to prevent acidic condensate from leaking onto electrical components or the furnace floor.
- Operational Safety: Maintains a gas-tight seal to prevent the escape of CO and other combustion gases into the ambient air.
- High-Temperature Resistance: Constructed from professional-grade materials capable of withstanding the thermal cycling of modern high-efficiency heat exchangers.
Which furnace models are compatible with the 58W14?
This gasket is primarily used in Lennox G61 series high-efficiency units, including the G61MPV and G61V models. Always verify the part number against your specific unit's heat exchanger assembly diagram.
Can I reuse the old gasket when cleaning the header box?
It is standard field practice to replace the header box gasket whenever the seal is broken. Compressed or degraded gaskets often fail to reform a reliable seal, leading to secondary trips of the pressure switch or internal corrosion.
Does this part include the mounting screws?
No, this is the 58W14 individual gasket. Retain existing hardware or source high-purity stainless steel fasteners to prevent thread seizure in the collector box frame.
This item is not eligible for free shipping.
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.
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Description
The Lennox 58W14 Header Box Gasket is a critical OEM replacement component designed to provide a high-integrity seal between the secondary heat exchanger and the header box assembly. This technical seal is specifically engineered for high-efficiency condensing furnaces, such as the Lennox G61MPV and G61V series, where managing flue condensate is vital. Measuring approximately 4.75 by 17.00 inches, the 58W14 header box gasket ensures that combustion byproducts and corrosive condensate remain contained within the drain system, preventing hazardous leaks and protecting the furnace chassis from premature oxidation. As a genuine Lennox furnace replacement part (also identified by manufacturer number 42381-004), it maintains the precise pressure differentials required for the combustion air inducer to operate within factory specifications. For contractors performing preventative maintenance or heat exchanger teardowns, replacing this gasket is a non-negotiable step to ensuring long-term system efficiency and flue gas safety.
Key Benefits for HVAC Technicians- Precise OEM Fitment: Designed specifically for the Lennox 58W14 footprint, eliminating the need for field modifications or RTV silicone workarounds.
- Condensate Management: Effectively seals the header box to prevent acidic condensate from leaking onto electrical components or the furnace floor.
- Operational Safety: Maintains a gas-tight seal to prevent the escape of CO and other combustion gases into the ambient air.
- High-Temperature Resistance: Constructed from professional-grade materials capable of withstanding the thermal cycling of modern high-efficiency heat exchangers.
Which furnace models are compatible with the 58W14?
This gasket is primarily used in Lennox G61 series high-efficiency units, including the G61MPV and G61V models. Always verify the part number against your specific unit's heat exchanger assembly diagram.
Can I reuse the old gasket when cleaning the header box?
It is standard field practice to replace the header box gasket whenever the seal is broken. Compressed or degraded gaskets often fail to reform a reliable seal, leading to secondary trips of the pressure switch or internal corrosion.
Does this part include the mounting screws?
No, this is the 58W14 individual gasket. Retain existing hardware or source high-purity stainless steel fasteners to prevent thread seizure in the collector box frame.
This item is not eligible for free shipping.
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.
