Lennox 25W72 Gasket
The Lennox 25W72 Gasket (also identified by part number 100742-02) is a critical OEM replacement part engineered for high-temperature sealing between the inducer motor assembly and the furnace heat exchanger. Designed for precision fitment in Lennox KGA and ZGA series units, this gasket draft inducer ensures a gas-tight seal that is essential for maintaining proper static pressure within the combustion circuit. By preventing air bypass or flue gas leakage, this component directly supports the reliable operation of the furnace pressure switch, preventing nuisance trips and short-cycling issues common in aging commercial and residential rooftops.
Constructed from durable, heat-resistant gasket material, the 25W72 is built to withstand the rigorous cycling and thermal expansion typical of high-efficiency gas heating systems. Field technicians often spec this specific Lennox HVAC replacement part when performing inducer motor change-outs to ensure the assembly maintains its factory-intended combustion efficiency. Replacing a degraded or compressed gasket is a standard best practice to minimize inducer motor vibration, reduce operational noise, and ensure that exhaust gases are properly managed through the venting system without compromising indoor air quality.
Key Benefits:
- Thermal Resistance: High-grade industrial material maintains seal integrity under extreme temperature fluctuations.
- Precise Fitment: Engineered specifically for Lennox induced draft motor housings to eliminate air leaks.
- System Reliability: Helps maintain accurate pressure readings for the combustion air inducer, preventing ignition failures.
- Noise Reduction: Provides a cushioned interface that helps dampen mechanical vibration during high-speed operation.
Common Questions:
How do I know if my Lennox draft inducer gasket needs replacement?
Inspect the seal during routine maintenance or inducer motor service. If you notice signs of brittle material, visible cracks, or soot marks around the blower housing, the gasket's integrity is compromised and should be replaced to prevent pressure switch errors.
Is the 25W72 compatible with all Lennox furnaces?
No, this part is specifically designed for select Lennox LGM, KGA, and ZGA models. Always verify the part number against your specific unit's data plate or technical manual to ensure a 100% OEM compatibility match.
Can I reuse the old gasket when installing a new motor?
While it may seem intact, gaskets often take a "set" or compress over time. Installing a new Lennox 25W72 with a new motor is the professional standard to avoid call-backs related to vacuum leaks or exhaust odors.
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: $5.77
-65%$5.77
$2.02Lennox 25W72 Gasket
The Lennox 25W72 Gasket (also identified by part number 100742-02) is a critical OEM replacement part engineered for high-temperature sealing between the inducer motor assembly and the furnace heat exchanger. Designed for precision fitment in Lennox KGA and ZGA series units, this gasket draft inducer ensures a gas-tight seal that is essential for maintaining proper static pressure within the combustion circuit. By preventing air bypass or flue gas leakage, this component directly supports the reliable operation of the furnace pressure switch, preventing nuisance trips and short-cycling issues common in aging commercial and residential rooftops.
Constructed from durable, heat-resistant gasket material, the 25W72 is built to withstand the rigorous cycling and thermal expansion typical of high-efficiency gas heating systems. Field technicians often spec this specific Lennox HVAC replacement part when performing inducer motor change-outs to ensure the assembly maintains its factory-intended combustion efficiency. Replacing a degraded or compressed gasket is a standard best practice to minimize inducer motor vibration, reduce operational noise, and ensure that exhaust gases are properly managed through the venting system without compromising indoor air quality.
Key Benefits:
- Thermal Resistance: High-grade industrial material maintains seal integrity under extreme temperature fluctuations.
- Precise Fitment: Engineered specifically for Lennox induced draft motor housings to eliminate air leaks.
- System Reliability: Helps maintain accurate pressure readings for the combustion air inducer, preventing ignition failures.
- Noise Reduction: Provides a cushioned interface that helps dampen mechanical vibration during high-speed operation.
Common Questions:
How do I know if my Lennox draft inducer gasket needs replacement?
Inspect the seal during routine maintenance or inducer motor service. If you notice signs of brittle material, visible cracks, or soot marks around the blower housing, the gasket's integrity is compromised and should be replaced to prevent pressure switch errors.
Is the 25W72 compatible with all Lennox furnaces?
No, this part is specifically designed for select Lennox LGM, KGA, and ZGA models. Always verify the part number against your specific unit's data plate or technical manual to ensure a 100% OEM compatibility match.
Can I reuse the old gasket when installing a new motor?
While it may seem intact, gaskets often take a "set" or compress over time. Installing a new Lennox 25W72 with a new motor is the professional standard to avoid call-backs related to vacuum leaks or exhaust odors.
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 25W72 Gasket (also identified by part number 100742-02) is a critical OEM replacement part engineered for high-temperature sealing between the inducer motor assembly and the furnace heat exchanger. Designed for precision fitment in Lennox KGA and ZGA series units, this gasket draft inducer ensures a gas-tight seal that is essential for maintaining proper static pressure within the combustion circuit. By preventing air bypass or flue gas leakage, this component directly supports the reliable operation of the furnace pressure switch, preventing nuisance trips and short-cycling issues common in aging commercial and residential rooftops.
Constructed from durable, heat-resistant gasket material, the 25W72 is built to withstand the rigorous cycling and thermal expansion typical of high-efficiency gas heating systems. Field technicians often spec this specific Lennox HVAC replacement part when performing inducer motor change-outs to ensure the assembly maintains its factory-intended combustion efficiency. Replacing a degraded or compressed gasket is a standard best practice to minimize inducer motor vibration, reduce operational noise, and ensure that exhaust gases are properly managed through the venting system without compromising indoor air quality.
Key Benefits:
- Thermal Resistance: High-grade industrial material maintains seal integrity under extreme temperature fluctuations.
- Precise Fitment: Engineered specifically for Lennox induced draft motor housings to eliminate air leaks.
- System Reliability: Helps maintain accurate pressure readings for the combustion air inducer, preventing ignition failures.
- Noise Reduction: Provides a cushioned interface that helps dampen mechanical vibration during high-speed operation.
Common Questions:
How do I know if my Lennox draft inducer gasket needs replacement?
Inspect the seal during routine maintenance or inducer motor service. If you notice signs of brittle material, visible cracks, or soot marks around the blower housing, the gasket's integrity is compromised and should be replaced to prevent pressure switch errors.
Is the 25W72 compatible with all Lennox furnaces?
No, this part is specifically designed for select Lennox LGM, KGA, and ZGA models. Always verify the part number against your specific unit's data plate or technical manual to ensure a 100% OEM compatibility match.
Can I reuse the old gasket when installing a new motor?
While it may seem intact, gaskets often take a "set" or compress over time. Installing a new Lennox 25W72 with a new motor is the professional standard to avoid call-backs related to vacuum leaks or exhaust odors.
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.
