Description
The Lennox 43K65 is an OEM replacement ignition cable lead measuring 21 inches in length, designed to deliver a consistent, high-voltage spark signal from the ignition module to the burner electrode in compatible Lennox heating systems. Proper ignition cable integrity is critical to reliable furnace startup — a worn, cracked, or failed cable can result in no-heat calls, nuisance lockouts, and increased service callbacks.
Key Features
- OEM Lennox replacement part — engineered to exact factory specifications
- 21-inch cable length for proper routing and connection in compatible units
- Designed to carry high-voltage spark signal from ignition module to electrode
- Durable insulation resists heat, moisture, and vibration for long service life
- Direct drop-in replacement — no modification required
- Helps restore reliable furnace ignition and reduce no-heat service calls
Application
The 43K65 ignition cable lead is intended for use in select Lennox furnaces and heating appliances that utilize a spark ignition system. Always verify compatibility with the equipment model and serial number before installation.
Why Use OEM Parts?
Using genuine Lennox OEM replacement components ensures proper fit, function, and system reliability. Non-OEM substitutes may not meet the electrical or dimensional specifications required for safe and effective operation.
