Lennox 43K65 Ignition Cable
The Lennox 43K65 Ignition Cable is a critical 21-inch high-voltage lead engineered specifically for sequence-controlled ignition in residential and commercial Lennox gas furnaces and unit heaters. As a direct OEM replacement part, this 21-inch ignition lead ensures low-resistance delivery of electrical discharge from the ignition control module to the spark electrode or flame sensor. Also identified by the manufacturer as Lennox 43K6501 or part number 65238300, it is designed to withstand the high-temperature thermal cycling found in 80UHG and TUA series cabinets.
For contractors, the Lennox 43K65 provides a precise fit with standardized connectors that eliminate common arcing issues associated with aftermarket "cut-to-length" kits. The heavy-duty thermal insulation maintains dielectric strength over time, preventing signal degradation that often leads to intermittent ignition lockouts or delayed combustion. This furnace ignition wire is an essential component for maintaining system timing and safe flame rectification cycles.
Key Benefits for Technicians- Factory-Correct 21" Length: Provides optimal reach within the burner compartment without excess slack that can interfere with other furnace components.
- Cross-Compatibility: Confirmed 1:1 replacement for 43K6501 and 65238300, simplifying inventory management.
- Precision Connectors: Features rugged terminals designed for secure mechanical and electrical contact at both the module and the igniter.
- High-Temperature Durability: Constructed with materials validated for long-term exposure to the heat generated during the combustion cycle.
Is the 43K65 compatible with my specific Lennox unit?
This lead is widely used across Lennox 80UHG, TUA, and several RTU series. Verify your model’s parts list to ensure a 21-inch lead is specified.
Can I use an aftermarket cable instead of this OEM lead?
Standardized aftermarket cables often lack the specific fibrous material or "beefy" insulation of the Lennox 43K65, which can result in inconsistent spark or ground-outs.
What does it mean if my old 43K65 ignition cable reads "OL" on a multimeter?
An "Open Loop" reading indicates an internal break in the conductor or insulation failure, necessitating an immediate replacement to restore ignition.
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: $18.46
-65%$18.46
$6.46Lennox 43K65 Ignition Cable
The Lennox 43K65 Ignition Cable is a critical 21-inch high-voltage lead engineered specifically for sequence-controlled ignition in residential and commercial Lennox gas furnaces and unit heaters. As a direct OEM replacement part, this 21-inch ignition lead ensures low-resistance delivery of electrical discharge from the ignition control module to the spark electrode or flame sensor. Also identified by the manufacturer as Lennox 43K6501 or part number 65238300, it is designed to withstand the high-temperature thermal cycling found in 80UHG and TUA series cabinets.
For contractors, the Lennox 43K65 provides a precise fit with standardized connectors that eliminate common arcing issues associated with aftermarket "cut-to-length" kits. The heavy-duty thermal insulation maintains dielectric strength over time, preventing signal degradation that often leads to intermittent ignition lockouts or delayed combustion. This furnace ignition wire is an essential component for maintaining system timing and safe flame rectification cycles.
Key Benefits for Technicians- Factory-Correct 21" Length: Provides optimal reach within the burner compartment without excess slack that can interfere with other furnace components.
- Cross-Compatibility: Confirmed 1:1 replacement for 43K6501 and 65238300, simplifying inventory management.
- Precision Connectors: Features rugged terminals designed for secure mechanical and electrical contact at both the module and the igniter.
- High-Temperature Durability: Constructed with materials validated for long-term exposure to the heat generated during the combustion cycle.
Is the 43K65 compatible with my specific Lennox unit?
This lead is widely used across Lennox 80UHG, TUA, and several RTU series. Verify your model’s parts list to ensure a 21-inch lead is specified.
Can I use an aftermarket cable instead of this OEM lead?
Standardized aftermarket cables often lack the specific fibrous material or "beefy" insulation of the Lennox 43K65, which can result in inconsistent spark or ground-outs.
What does it mean if my old 43K65 ignition cable reads "OL" on a multimeter?
An "Open Loop" reading indicates an internal break in the conductor or insulation failure, necessitating an immediate replacement to restore ignition.
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 43K65 Ignition Cable is a critical 21-inch high-voltage lead engineered specifically for sequence-controlled ignition in residential and commercial Lennox gas furnaces and unit heaters. As a direct OEM replacement part, this 21-inch ignition lead ensures low-resistance delivery of electrical discharge from the ignition control module to the spark electrode or flame sensor. Also identified by the manufacturer as Lennox 43K6501 or part number 65238300, it is designed to withstand the high-temperature thermal cycling found in 80UHG and TUA series cabinets.
For contractors, the Lennox 43K65 provides a precise fit with standardized connectors that eliminate common arcing issues associated with aftermarket "cut-to-length" kits. The heavy-duty thermal insulation maintains dielectric strength over time, preventing signal degradation that often leads to intermittent ignition lockouts or delayed combustion. This furnace ignition wire is an essential component for maintaining system timing and safe flame rectification cycles.
Key Benefits for Technicians- Factory-Correct 21" Length: Provides optimal reach within the burner compartment without excess slack that can interfere with other furnace components.
- Cross-Compatibility: Confirmed 1:1 replacement for 43K6501 and 65238300, simplifying inventory management.
- Precision Connectors: Features rugged terminals designed for secure mechanical and electrical contact at both the module and the igniter.
- High-Temperature Durability: Constructed with materials validated for long-term exposure to the heat generated during the combustion cycle.
Is the 43K65 compatible with my specific Lennox unit?
This lead is widely used across Lennox 80UHG, TUA, and several RTU series. Verify your model’s parts list to ensure a 21-inch lead is specified.
Can I use an aftermarket cable instead of this OEM lead?
Standardized aftermarket cables often lack the specific fibrous material or "beefy" insulation of the Lennox 43K65, which can result in inconsistent spark or ground-outs.
What does it mean if my old 43K65 ignition cable reads "OL" on a multimeter?
An "Open Loop" reading indicates an internal break in the conductor or insulation failure, necessitating an immediate replacement to restore ignition.
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.
