Lennox 25W57 Wire
The Lennox 25W57 Ignition Lead Wire is a critical OEM replacement part engineered for high-voltage transmission between the ignition control module and the ignitor electrode. As a veteran technician, you know that a compromised spark plug wire leads to intermittent ignition failure and nuisance lockouts. This 50-inch HVAC ignition cable is factory-spec for a wide range of Lennox units, including popular KGA/TGA series rooftop units and residential gas furnaces. Constructed with high-grade silicone insulation, it is designed to withstand the extreme thermal loads found in the burner compartment without carbon tracking or dielectric breakdown. Utilizing the genuine Lennox 25W57 (cross-referenced as 100035-04) ensures precise terminal fitment and optimal resistance levels, maintaining the integrity of the flame rectification signal and preventing electrical interference with the unit controller.
Key Benefits- OEM Precision: Direct replacement for Lennox 100035-04, guaranteeing correct length and connector compatibility for a fast, "first-time-right" install.
- Thermal Resilience: High-temperature ignition lead insulation prevents melting and grounding against the cabinet, common in packaged rooftop units.
- Reliable Combustion: Ensures consistent energy delivery to the surface ignitor or spark gap to eliminate delayed ignition and "flashback" scenarios.
- Signal Integrity: Optimized for low electrical noise to prevent Prodigy controller or M2/M3 board communication errors.
Is the Lennox 25W57 compatible with all Lennox gas packs?
While the 25W57 fits many KGA036S4, TGA060S2, and KGA060S4 models, always verify the wiring diagram or your specific Lennox model number as lead lengths vary between ignition modules.
Can I use a generic 7mm spark wire as a substitute?
Generic leads may lack the specific terminal connectors or the proper dielectric strength required for Lennox ignition systems. Using a genuine 25W57 ignition wire prevents premature failure and ensures the safety of the combustion circuit.
What are the signs of a failing ignition lead wire?
Look for visible cracking, brittleness, or "arcing" sounds during the ignition sequence. If the burner fails to light but the ignitor is glowing or clicking, the 25W57 wire may have internal resistance issues or a short to ground.
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: $18.49
-65%$18.49
$6.47Lennox 25W57 Wire
The Lennox 25W57 Ignition Lead Wire is a critical OEM replacement part engineered for high-voltage transmission between the ignition control module and the ignitor electrode. As a veteran technician, you know that a compromised spark plug wire leads to intermittent ignition failure and nuisance lockouts. This 50-inch HVAC ignition cable is factory-spec for a wide range of Lennox units, including popular KGA/TGA series rooftop units and residential gas furnaces. Constructed with high-grade silicone insulation, it is designed to withstand the extreme thermal loads found in the burner compartment without carbon tracking or dielectric breakdown. Utilizing the genuine Lennox 25W57 (cross-referenced as 100035-04) ensures precise terminal fitment and optimal resistance levels, maintaining the integrity of the flame rectification signal and preventing electrical interference with the unit controller.
Key Benefits- OEM Precision: Direct replacement for Lennox 100035-04, guaranteeing correct length and connector compatibility for a fast, "first-time-right" install.
- Thermal Resilience: High-temperature ignition lead insulation prevents melting and grounding against the cabinet, common in packaged rooftop units.
- Reliable Combustion: Ensures consistent energy delivery to the surface ignitor or spark gap to eliminate delayed ignition and "flashback" scenarios.
- Signal Integrity: Optimized for low electrical noise to prevent Prodigy controller or M2/M3 board communication errors.
Is the Lennox 25W57 compatible with all Lennox gas packs?
While the 25W57 fits many KGA036S4, TGA060S2, and KGA060S4 models, always verify the wiring diagram or your specific Lennox model number as lead lengths vary between ignition modules.
Can I use a generic 7mm spark wire as a substitute?
Generic leads may lack the specific terminal connectors or the proper dielectric strength required for Lennox ignition systems. Using a genuine 25W57 ignition wire prevents premature failure and ensures the safety of the combustion circuit.
What are the signs of a failing ignition lead wire?
Look for visible cracking, brittleness, or "arcing" sounds during the ignition sequence. If the burner fails to light but the ignitor is glowing or clicking, the 25W57 wire may have internal resistance issues or a short to ground.
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 25W57 Ignition Lead Wire is a critical OEM replacement part engineered for high-voltage transmission between the ignition control module and the ignitor electrode. As a veteran technician, you know that a compromised spark plug wire leads to intermittent ignition failure and nuisance lockouts. This 50-inch HVAC ignition cable is factory-spec for a wide range of Lennox units, including popular KGA/TGA series rooftop units and residential gas furnaces. Constructed with high-grade silicone insulation, it is designed to withstand the extreme thermal loads found in the burner compartment without carbon tracking or dielectric breakdown. Utilizing the genuine Lennox 25W57 (cross-referenced as 100035-04) ensures precise terminal fitment and optimal resistance levels, maintaining the integrity of the flame rectification signal and preventing electrical interference with the unit controller.
Key Benefits- OEM Precision: Direct replacement for Lennox 100035-04, guaranteeing correct length and connector compatibility for a fast, "first-time-right" install.
- Thermal Resilience: High-temperature ignition lead insulation prevents melting and grounding against the cabinet, common in packaged rooftop units.
- Reliable Combustion: Ensures consistent energy delivery to the surface ignitor or spark gap to eliminate delayed ignition and "flashback" scenarios.
- Signal Integrity: Optimized for low electrical noise to prevent Prodigy controller or M2/M3 board communication errors.
Is the Lennox 25W57 compatible with all Lennox gas packs?
While the 25W57 fits many KGA036S4, TGA060S2, and KGA060S4 models, always verify the wiring diagram or your specific Lennox model number as lead lengths vary between ignition modules.
Can I use a generic 7mm spark wire as a substitute?
Generic leads may lack the specific terminal connectors or the proper dielectric strength required for Lennox ignition systems. Using a genuine 25W57 ignition wire prevents premature failure and ensures the safety of the combustion circuit.
What are the signs of a failing ignition lead wire?
Look for visible cracking, brittleness, or "arcing" sounds during the ignition sequence. If the burner fails to light but the ignitor is glowing or clicking, the 25W57 wire may have internal resistance issues or a short to ground.
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.
