York Parts S1-37319801821 Gas Furnace Booster AssemblyGas Furnace Booster Assembly, York Parts S1 37319801821, is a high quality replacement part designed for sealed combustion gas furnaces. This Gas Furnace Booster Assembly ensures reliable performance and steady airflow, making it an essential component for maintaining efficient heating in York systems. As a Type Booster Assembly, it elevates ignition reliability and overall furnace response in sealed combustion units. The component is a direct

This vertical-mount cover fits standard TP970

Hex Head Size: 1-1/16 Inch

The rugged die-cast aluminum body and NEMA 3 enclosure ensure durability in harsh environments

supporting long service intervals and reduced downtime

Nominal size: 1-1/4 Inch

it meets OEM specifications for a reliable fit

Easy integration with existing control systems and the Honeywell Thermal Solutions ecosystem

Operating from 20 to 281 °F (media) and handling up to 35 PSIG steam or 87 PSI water

a cost-effective option for repairing the defrost subsystem without replacing the entire unit

It supports modulating control strategies and is ideal for commercial applications requiring accurate

it fits perfectly

a setpoint span of 50–99°F