This Source 1 OEM replacement part is critical for technicians maintaining system stability and preventing liquid slugging in heavy-duty commercial units

The Armstrong Furnace R37373B001 Fan Blade is a genuine OEM replacement part engineered for Lennox

Constructed from heavy-gauge steel with a durable black powder-coat finish

mitigating the risk of premature motor failure and HVAC system short-cycling

This specialized flame rod sensor wire facilitates the essential feedback loop between the flame sensor and the ignition control module

Carrier LH33CZ003 Ignition Control 320735-701 This Source 1 OEM replacementThe Carrier LH33CZ003 Ignition Control is a critical OEM replacement component designed for precise sequence management in Carrier, Bryant, and Payne furnaces. As a veteran grade electronic ignition module, this part manages the interface between the thermostat and the burner assembly, overseeing the hot surface igniter (HSI), inducer motor, and gas valve operations. This DSI ignition control (Direct Spark Ignition) ensures safe and reliable furnace