Lennox 58W06 Header Box

The Lennox 58W06 Header Box is a critical OEM replacement component engineered for high-efficiency condensing gas furnaces. As a primary plastic header box (often referred to as a cold end header box or collector box), this unit is responsible for managing the collection and drainage of corrosive condensate produced during the secondary heat exchanger's combustion process. Built from high-grade, corrosion-resistant compounds, the 58W06 is designed to withstand the acidic nature of furnace effluent, preventing leaks that can lead to cabinet corrosion or pressure switch tripping.

This Lennox furnace replacement part is compatible with various 90% AFUE and above models, including the Lennox G61MPV and SLP98 series. Precision-molded connection points ensure a gastight seal between the heat exchanger and the combustion air inducer motor, maintaining the pressure differentials required for safe furnace operation. For technicians performing a Lennox 58W06 installation, this genuine HVAC collector box ensures original equipment performance and simplifies the recovery of system efficiency without the fitment issues common in universal aftermarket alternatives.

• OEM Compatibility: Exact fit for Lennox high-efficiency furnaces, ensuring proper alignment with existing drainage lines and pressure switches.
• Corrosion Resistance: Manufactured from specialized polymers that resist the degradative effects of acidic condensate.
• Optimized Pressure Management: Maintains the necessary vacuum for the inducer assembly, preventing nuisance pressure switch circuit faults.
• Direct Replacement: Features factory-located mounting holes and port configurations for a streamlined swap-out during service calls.

How do I know if my Lennox header box needs replacement?
Technicians typically identify a failing 58W06 header box by observing hairline cracks in the plastic housing, water stains at the base of the furnace cabinet, or frequent pressure switch codes that persist even after checking the vent pipes and inducer motor.

Does this header box include the gasket?
While the Lennox 58W06 provides the structural housing, it is industry best practice to inspect the mating gasket and replace it if it shows signs of compression set or dry rot to ensure a moisture-proof seal.

Can this part be used in horizontal furnace orientations?
Yes, this component is designed to facilitate proper condensate flow in various installation configurations, provided the furnace pitch and drainage traps are set according to the manufacturer’s technical specifications.

This item is not eligible for free shipping.

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.