This cooling fan blade is the direct performance alternative for the discontinued 326100-401

Proper installation requires verifying that the thermal cutout range matches the manufacturer’s data plate to ensure system integrity and furnace overheating protection

Specifically designed for non-spring return actuators within the LMB

It provides an extra margin of safety for the motor

This critical field-installable accessory is designed for seamless integration with the L404 Series

Honeywell 4074EGR Crank Arm Assembly This cooling fan blade isThe Honeywell 4074EGR is a mission critical Crank Arm Assembly engineered for damper actuator applications in commercial and residential economizer systems. This heavy duty linkage component is designed to facilitate the smooth conversion of rotary motion into linear motion, ensuring precise airflow control. As an industry standard part, the 4074EGR is identical to the 4074EGR U, providing a direct replacement for worn mechanical drive components. It