The Lennox 11K54 (104120-03) Wiring Harness Unit is a genuine OEM component engineered for precise fit and dependable performance within Lennox HVAC systems. This harness ensures proper electrical connectivity between internal control modules, sensors, and powered components.Key Specifications:

• Part Number: 11K54
• Manufacturer Part Number: 104120-03
• Type: Wiring Harness Unit
• Wire Configuration: Multi-connector assembly with color-coded, pre-terminated leads
• Function: Facilitates communication and power distribution among system components
• Build: High-temperature, abrasion-resistant insulated wiring
• Connectors: Factory-molded terminals for secure plug-and-play installation
• Application: Furnace and air handler control circuits
• Compatibility: Designed for use in specific Lennox heating and cooling systems
• Installation: Direct OEM replacement – no splicing or modifications required

This component is essential for restoring system reliability, especially in cases of damaged or deteriorated wiring. Ensure compatibility by referencing your unit’s model and serial number before purchase.Available now at Beenimax.com – trusted by contractors and HVAC professionals.