Lennox 49K85 Ignition Pilot Assembly

Maintaining reliable ignition in Lennox gas furnaces requires precision components like the Lennox 49K85 Spark Ignition Pilot Assembly. This OEM spark igniter pilot is a direct-fit replacement engineered for intermittent pilot ignition systems, providing a consistent high-voltage spark to initiate the burner cycle. Transitioning from a failed assembly to this technical-grade unit restores system safety by preventing unburnt gas accumulation. The 49K85 features a durable ceramic electrode and an adjustable flame hood, allowing for precise flame rectification and signal strength. With a generous 33.5-inch lead length, this assembly offers the flexibility needed for clean routing in tight burner vestibules. It is specifically compatible with high-efficiency Lennox G26 series units and other legacy residential furnaces. For contractors, installing this furnace pilot burner ensures factory-spec performance and minimizes callbacks related to ignition lockout or weak flame sensing.

• OEM Precision: Guaranteed Lennox furnace part compatibility for models such as the G26Q3-50-1.
• Optimized Ignition: Reliable intermittent pilot operation reduces fuel waste compared to standing pilot systems.
• Durable Construction: Features a high-temp ceramic insulator to withstand sustained heat cycles within the burner box.
• Universal Fuel Support: Suitable for use in both Natural Gas and Liquid Propane (LP) configurations.
• Versatile Voltage: Engineered to integrate with standard 24V or 120V ignition control modules.

What are the signs of a failing 49K85 pilot assembly?
Technicians typically observe "no spark" conditions, cracked ceramic insulators, or a weak flame that fails to prove the circuit to the ignition module, leading to system lockout.

Is the flame height adjustable on this unit?
Yes, the 49K85 allows for flame size regulation, which is critical for ensuring the pilot flame properly engulfs the sensing probe for consistent rectification.

Does this assembly include the lead wire?
Yes, it comes equipped with a 33.5-inch lead to provide ample reach for various furnace cabinet configurations.

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.