Lennox 56W70 Blower Housing 323613-751 These often indicate a failed

These often indicate a failed or misaligned belt tensioner assembly

Suitable for residential and light commercial oil burners

How do I ensure the most accurate reading with a strap-on gauge

This 2-way piloted diaphragm solenoid valve features a robust brass body and a full 1 1/4" orifice

This valve is compatible with various Johnson Controls actuators

Lennox 56W70 Blower Housing 323613-751 These often indicate a failedThe Lennox 56W70 Blower Housing is a heavy duty, direct fit replacement for the discontinued R45557 003. Engineered for high efficiency air handlers and gas fireplaces, this HVAC blower assembly is designed to support the internal centrifugal fan motor and ensure precise static pressure management. As a genuine OEM Lennox part, the 56W70 eliminates the vibration and alignment issues common with universal aftermarket housings. Its rigid, corrosion