This Weil McLain 383-500-035 Blower Assembly Kit is the direct OEM replacement engineered specifically for Ultra-155 Series Gas Boilers

Precision Airflow Management: Engineered to direct air across the heat exchanger

true shaft is critical for maintaining HVAC blower motor efficiency and preventing premature bearing wear caused by vibration or runout

The brushless DC design significantly reduces energy consumption and noise levels during ramp-up and steady-state operation

cracked vacuum tubing

Conbraco 18C-542-4-125 Valve 340155-7024 This Weil McLain 383-500-035 BlowerThe Conbraco 18C 542 4 125 is a high capacity temperature and pressure relief valve engineered for heavy duty protection of commercial hot water storage tanks and large scale boilers. This ASME Section IV certified valve features a rugged bronze body and stainless steel springs, ensuring long term seat integrity in demanding hydronic environments. With a 1 1 2" Male NPT inlet and 1 1 2" Female NPT outlet, it provides a substantial 5,125,000 BTU hr