Lennox 89W79 (104737-04) Upflow Drain Pan is a genuine OEM HVAC replacement part designed to properly collect and channel condensate in compatible Lennox upflow air handler and furnace systems. Built to precise factory specifications, this drain pan helps prevent water leaks, overflow, and moisture-related damage, ensuring reliable system operation and long-term performance.
Manufactured for exact fit and compatibility, this upflow drain pan measures 25.12 x 20 x 1.51 inches and installs directly in designated Lennox units without modification. Using an OEM condensate pan is critical for maintaining proper drainage, protecting internal components, and avoiding costly water damage or service issues.
This part is ideal for HVAC contractors, service technicians, and homeowners performing repairs or maintenance who require a factory-approved Lennox replacement.
Key features and benefits:
• Genuine Lennox OEM replacement drain pan
• Designed for upflow HVAC system configurations
• Helps safely collect and direct condensate away from equipment
• Prevents water leakage and moisture-related damage
• Precision-molded for proper fit and dependable performance
• Direct replacement for worn or damaged original drain pans
Specifications:
• Brand: Lennox
• Lennox Part Number: 89W79
• Manufacturer Part Number: 104737-04
• Product Type: Upflow drain pan / condensate pan
• Application: Upflow air handlers and furnaces
• Overall dimensions: 25.12 x 20 x 1.51 inches
• OEM status: Genuine factory replacement
Compatibility:
Designed for use in select Lennox upflow HVAC systems. Always verify part number and dimensions against your existing drain pan or unit model to ensure proper fit.
Why buy from Beenimax:
Beenimax supplies only genuine OEM HVAC parts sourced directly from manufacturers. Ordering the Lennox 89W79 upflow drain pan from Beenimax ensures you receive the correct, factory-approved component backed by reliable fulfillment and knowledgeable HVAC support.
Replacing a damaged or deteriorated drain pan with the correct OEM part helps maintain proper condensate management, protects your equipment, and keeps your Lennox system running as designed.