The Lennox 18G90 Pilot Burner Assembly is a high-quality OEM replacement part engineered for use in Lennox natural gas furnaces and heating systems. Designed for efficient ignition performance, this pilot burner features a precision 0.018-inch orifice, integrated electrode, and a 24-inch ignition wire to ensure stable operation, quick ignition, and dependable performance in all Lennox gas heating applications.

This pilot burner with electrode plays a critical role in maintaining consistent flame ignition and preventing ignition failure or delayed start-ups. Built with durable heat-resistant materials, the 18G90 pilot assembly withstands high-temperature environments found in residential and commercial HVAC systems. It replaces worn or faulty pilot assemblies, helping to restore original performance and improve system reliability.

Key Product Features

• Genuine Lennox part number 18G90 (18G9001)

• Designed for natural gas applications

• Integrated electrode and 24" ignition lead for easy connection

• Factory-calibrated 0.018" gas orifice for consistent flame output

• Provides reliable pilot flame ignition and stable combustion

• Compatible with a wide range of Lennox furnaces and heating units

• Ensures long service life and safe ignition control

Technical Specifications

• Manufacturer: Lennox

• Part Number: 18G90 / 18G9001

• Type: Pilot Burner Assembly with Electrode

• Gas Type: Natural Gas

• Orifice Size: 0.018 inch

• Ignition Wire Length: 24 inches

• Dimensions: 5" (L) × 3" (W) × 2" (H)

• Weight: 0.25 lbs (approx.)

• Material: Metal and ceramic electrode

• Connection Type: Wire lead ignition

Applications

The Lennox 18G90 pilot burner is used in a variety of Lennox gas furnaces, boilers, and heating systems where dependable pilot ignition is required. It ensures proper flame sensing, reliable gas flow, and consistent ignition under demanding conditions. Compatible with numerous Lennox residential and commercial HVAC models, this part is a preferred choice for service technicians, HVAC contractors, and maintenance professionals who need authentic Lennox ignition components.

Benefits

• Restores proper ignition performance

• Improves heating system efficiency and safety

• Easy to install and fits perfectly in OEM mounting points

• Prevents system lockouts and ignition delays

• Backed by Lennox quality standards for dependability

Packaging Information

• Sold individually

• Packaged for protection against moisture and handling damage

• Includes pilot burner, electrode, and ignition wire

Optimize your HVAC system performance with the Lennox 18G90 Pilot Burner with Electrode. This premium ignition assembly offers OEM-level reliability, consistent flame quality, and durable construction, making it a must-have component for maintaining efficient natural gas heating systems.