Replacement 20903 3-Speed Blower Motor for Listed Models
Overview:
The 20903 3-speed blower motor is a 115V replacement motor designed to replace specific Buck, Dayton, and Fasco motor models. With three operating speeds, thermal protection, and continuous air-over operation, it provides a replacement option for applications using one of the confirmed cross-reference numbers listed below.
Before ordering, compare the part number and electrical specifications of your existing motor with this replacement. Compatibility should be confirmed by the listed model or part number rather than appearance alone.
Key Features:
- Three-Speed Operation: Provides 1550, 1300, and 1100 RPM settings for different airflow requirements.
- 115V Power: Operates on standard 115V, 60Hz, single-phase electrical service.
- Thermally Protected: Built-in thermal protection helps protect the motor from overheating.
- Continuous Air-Over Design: Rated for continuous air-over operation in its intended application.
- Multiple Cross-References: Replaces the listed Buck, Dayton, and Fasco blower motor numbers.
- Aftermarket Replacement: Designed as a replacement for the specified original motor applications.
Important Information:
This is an aftermarket replacement part designed to replace the original manufacturer's component. Buck, Dayton, and Fasco brand names and part numbers are used for compatibility and identification purposes only. This product is not manufactured by or affiliated with Buck, Dayton, or Fasco.
FAQs:
Q: Is this a 3-speed blower motor?
A: Yes. The 20903 is specified as a 3-speed motor with rated speeds of 1550, 1300, and 1100 RPM.
Q: What voltage does this blower motor require?
A: It is rated for 115V, 60Hz, single-phase power.
Q: Is the motor thermally protected?
A: Yes. Thermal protection is included in the provided specifications.
Q: Is this an OEM Buck, Dayton, or Fasco motor?
A: No. This is an aftermarket replacement part. The manufacturer names and part numbers are provided strictly for compatibility and identification.
Q: How should I confirm that this motor fits my application?
A: Compare your existing motor's part number and electrical specifications with the replacement information on this page. Do not determine compatibility from appearance alone.
Fit / Measuring / Safety Notes:
- Verify the existing motor part number before ordering.
- Compare voltage, frequency, phase, speed, amperage, and other applicable motor specifications before installation.
- Do not assume compatibility based only on physical appearance.
- Confirm that your existing motor corresponds to one of the listed replacement or cross-reference numbers.
- Disconnect electrical power before removing, servicing, or installing a blower motor.
- Installation should follow the requirements of the appliance and motor application.
- If compatibility or installation requirements are uncertain, consult a qualified service professional.
Helpful Links:
Product Details / Specifications:
- Part Number: 20903
- Motor Type: 3-speed blower motor
- Voltage: 115V
- Frequency: 60Hz
- Phase: Single phase (PH1)
- Horsepower Ratings: 1/50, 1/80, 1/140 HP equivalent
- Amps: 0.9 / 0.6 / 0.5
- RPM: 1550 / 1300 / 1100
- Ambient Rating: 40°C
- Duty / Cooling Designation: AIR OVER CONT.
- Rotation Designation: CWSE
- Protection: Thermally protected
- Part Type: Aftermarket replacement
Direct Replacement for:
- BUCK 7163-6045
- BUCK 7163-7813
- BUCK R22CCW270ZD
- BUCK U9522
- DAYTON 48GN48
- FASCO D1138
Manufacturer Warranty
Warranty Coverage: 1-Year Limited Warranty
This replacement part from NBK includes a 1-year manufacturer's warranty covering defects in materials and workmanship under normal use.
If you experience an issue within the warranty period, please contact us with your order details so we can assist with evaluation and next steps. Warranty coverage does not apply to damage caused by improper installation, misuse, or external electrical issues.
Estimated Lead Time
Orders typically leave our warehouse within 2–3 business days. After your order ships, delivery time will depend on your location and the carrier's transit schedule.
Processing and shipping times may vary based on product availability and carrier service. If you have any questions about current stock or estimated delivery dates, please contact us before placing your order.
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