York S1-373-19801-403 Burner Assembly 318973-401 If your system requires a

If your system requires a separate flame sensor (such as 5H0719450000)

and ball valves in demanding commercial HVACR environments

suitable for both residential and commercial air handlers

it features refined material composition to handle high-pressure hydronic applications

while the clockwise (CW) rotation ensures correct airflow direction for heat rejection

York S1-373-19801-403 Burner Assembly 318973-401 If your system requires aThe York S1 373 19801 403 Burner Assembly is a precision engineered OEM replacement part designed for high performance combustion in gas furnaces. This gas furnace burner assembly is constructed from durable stainless steel, ensuring it can withstand the thermal stresses of repeated firing cycles without warping or premature oxidation. As a critical Source1 burner upgrade, this assembly often comes with the igniter and flame sensor factory installed,