Blower Motor | 148 CFM 115V (6FHXS/6FHX8) | NBK-20059

NBK-20059 – Blower Motor | 148 CFM 115V | Replaces Dayton 4C446, 6FHX8, and Fasco 50752-D500

The NBK-20059 Blower Motor is a durable, high-performance replacement for outdoor wood furnaces, boilers, and greenhouse ventilation systems. Delivering 148 CFM at 115V, this blower is one of the most commonly used models in the industry. It directly replaces popular units such as the Dayton 4C446 and 6FHX8, Englander PU-4C442, and Fasco 50752-D500. Designed for efficiency and long-term reliability, it includes automatic thermal protection, cast aluminum end shields, and a dynamically balanced motor for quiet operation.

Key Features:
• Industry Standard Blower – Common replacement for outdoor wood furnaces and greenhouse ventilation systems
• OEM-Compatible Design – Direct-fit replacement for Dayton, Fasco, Englander, and other popular blowers
• Efficient & Quiet – Dynamically balanced motor minimizes vibration and maintains steady airflow
• Durable Construction – Cast aluminum end shields and automatic thermal protection extend service life
• Full 1-Year Warranty – Backed by NBK for quality assurance and peace of mind

Specifications:
• SKU: 20059
• Alternate SKU: FN446
• Category: Blower Motors / Hearth Parts / Greenhouse / Outdoor Boiler
• Voltage: 115V, 50/60Hz, Single Phase
• Amperage: 0.75A (Full Load)
• Motor RPM: 2720 / 3120
• Motor Type: PSC / Shaded Pole
• CFM @ 0.000” SP: 148
• Mounting Position: All Position
• Motor Enclosure: Open
• Temperature Range: -20°F to 104°F
• Max Ambient & Inlet Temp: 104°F
• Thermal Protection: Automatic
• Wheel Diameter: 3-13/16"
• Wheel Width: 2-1/2"
• Inlet Diameter: 3-1/8"
• Lead Length: 6"
• Blower Outlet Shape: Rectangular
• Certifications: UL Recognized (US & Canada - E47479)
• Warranty: Full 1-Year Manufacturer Warranty

Equivalent To:
Dayton: 4C446, 6FHX8, 2C610, 1TDP5, 7021-2001, 7021-6745, 7073-0488
Englander: PU-4C442
Fasco: 50752-D500, 7021-3467, 7021-10838, A455
Greenhouse / Dundas: 7021-7857
Other: 7021-4799 (England Stove), 7058-0383, 80472, 7021-1835, 7021-5855, Grainger 6FHX5

Why Choose the NBK-20059?
The NBK-20059 Blower Motor is trusted across the heating and greenhouse industries for its proven performance, quiet efficiency, and rugged design. With broad OEM compatibility and a full 1-year warranty, it’s a top-rated choice for technicians and homeowners seeking reliable airflow and dependable operation in high-demand heating systems.

Shipping & Availability:
Special order from NBK. Please allow 1–2 business days for processing before shipment.