Centrifugal Blower 115V 3200 RPM (A166) Central Boiler 5800040

NBK-12355 – Centrifugal Blower 115V 3200 RPM Combustion Fan Assembly fits Central Boiler Classic/ E-Classic (5800040)

The NBK-12355 Centrifugal Blower is a high-performance OEM replacement designed for heating, ventilation, and outdoor boiler applications. Built to replace the Fasco A166 and Dayton 1TDP7, this blower delivers 3200 RPM at 115V and features a thermally protected shaded pole motor with sleeve bearings for reliable operation. Commonly used in furnaces, exhaust vent fans, and outdoor boilers, it provides quiet, efficient airflow in demanding environments.

Key Features

• OEM Replacement Fit: Directly replaces Fasco A166, Dayton 1TDP7, and multiple other blower models
• Durable & Protected: Thermally protected shaded pole motor prevents overheating and extends service life
• Compact & Efficient: Provides 145 CFM airflow at 3120 RPM for heating and ventilation systems
• Quality Build: Sleeve bearing design, UL recognized, CSA certified
• Includes Mounting Flange: Easy to install with discharge mounting flange included

Specifications

• SKU: 12355
• Alternate SKU: FNA166
• Category: Blower / Air Handler / HVAC / Outdoor Boiler
• Voltage: 115V, 50/60Hz
• Amperage: 0.68–0.75A (Full Load)
• Motor RPM: 2720–3200
• Motor Type: Shaded Pole, Single Speed
• Bearings: Sleeve
• CFM @ 0.000” SP: 145
• Mounting Position: All Position
• Motor Enclosure: Open
• Temperature Range: -20°F to 104°F
• Max Ambient Temp: 104°F
• Thermal Protection: Automatic
• Wheel Size: 3-3/4" x 2-1/2"
• Includes: Discharge Mounting Flange
• Certifications: UL Recognized, CSA Certified

Equivalent To
Dayton: 1TDP7, 4C446
Fasco: A166, 7021-3469, 7021-7788, 7121-3469, 7121-7788, 8121-2084, 7021-11307, 702110411
Rotom: R7-RB446
WoodMaster: 0109-732
Baxter: 01-1000V8-00060
A.O. Smith: JA1P110NS
Other: 70216741, 9413

Why Choose the NBK-12355?
The NBK-12355 is a trusted replacement for some of the most widely used blowers in HVAC and outdoor boiler systems. Offering dependable airflow, thermal protection, and long service life, it outperforms legacy Dayton and Fasco blowers. With a precise OEM fit and rugged design, this blower ensures reliable system performance at a competitive price.

Central Boiler exact replacement combustion fan 

Original Part Number: 5800040