Nordyne 667290 Motor Pulley 321042-401 Ensure the bronze seats are

Ensure the bronze seats are cleaned or replaced if the check valve assembly does not seal completely

Engineered with a NEMA 56 frame and a 5/8" diameter shaft

eliminating the need for full device re-installation or labor-intensive manual trimming

this damper actuator is engineered for longevity and maintenance-free service in demanding commercial environments

allows the bulb to be placed regardless of the ambient temperature at the bellows or capillary

Nordyne 667290 Motor Pulley 321042-401 Ensure the bronze seats areThe Nordyne 667290 Motor Pulley is a critical component for fine tuning the blower speed and airflow across various Nordyne and Nortek air handlers and furnace systems. As a genuine OEM adjustable motor pulley (also referred to as an adjustable sheave), this part allows contractors to balance the system's static pressure by precisely modifying the pitch diameter. Designed for heavy duty HVACR applications, the 667290 features a durable construction