Convection Blower Motor – Replaces Harman 3-21-33647 – NBK-20146

NBK-20146 – Convection Blower Motor – NBK The NBK-20146 Convection Blower Motor is a dependable OEM-equivalent replacement designed for hearth and pellet stove convection blower applications. This motor helps circulate warm air efficiently throughout the room, improving overall heating performance and comfort. It is a direct replacement for the commonly used Harman 3-21-33647 blower motor and compatible with earlier Harman and Dayton reference models. Built to meet or exceed OEM specifications, the NBK-20146 offers a precise fit and reliable operation, making it an ideal solution for stove technicians and homeowners servicing Harman-compatible heating appliances. Key Features OEM-Compatible Replacement: Direct replacement for Harman 3-21-33647 Efficient Convection Airflow: Helps distribute heat evenly throughout the space Reliable Performance: Designed for consistent operation in hearth environments Direct-Fit Design: Simplifies installation with minimal modification Specifications SKU: 20146 UPC: 810069180120 Category: Convection Blower Motor / Hearth Parts OEM Brand: Harman Replaces OEM: 3-21-33647 Application: Pellet stove and hearth convection blower replacement Equivalent To Harman: 3-21-33647, 3-21-22647 Dayton: 2C647 Why Choose the NBK-20146? The NBK-20146 is a trusted convection blower motor replacement for Harman heating appliances requiring OEM-level compatibility and dependable airflow. Its direct replacement design helps restore efficient heat circulation and maintain consistent comfort. Installation Tips Allow the stove to cool completely before servicing blower components. Disconnect power and remove the blower assembly carefully. Inspect wiring connections and blower housing for wear during replacement. Test airflow operation after installation to ensure proper convection performance. Pairs Well With Convection Blower Gaskets, Snap Disc Switches, Stove Wiring Harnesses, Pellet Stove Maintenance Supplies SPECIAL ORDER NOTICE: This is a special order item sourced from NBK. Please allow 1–2 business days for processing prior to shipment.