Replacement 115V 1/5 HP Fan Motor for Compatible Cooling Systems
Overview:
Restore dependable airflow and cooling performance with this 115V 1/5 HP Fan Motor 20521 replacement. Designed as an aftermarket replacement for select RV rooftop air conditioners and compatible HVAC equipment, this motor delivers reliable operation while matching the specifications of multiple OEM applications. Whether you're replacing a worn motor or completing preventive maintenance, this replacement helps return your cooling system to proper operation.
Key Features:
- Designed as a replacement for multiple OEM fan motor applications
- 115V, 1/5 HP motor for dependable cooling performance
- Three-speed operation rated up to 1650 RPM
- Thermally protected for added motor protection
- Balanced construction helps reduce vibration and operating noise
- Built for continuous airflow applications
- Suitable for compatible RV rooftop air conditioners and HVAC systems
- Direct replacement design for qualifying applications
Important Information:
This is an aftermarket replacement part. OEM brand names and part numbers are referenced solely to identify compatible applications. This product is not manufactured by or affiliated with Century, Dometic, Duo-Therm, Broad-Ocean, or any other original equipment manufacturer.
FAQs:
Q: Is this an OEM motor?
A: No. This is a quality aftermarket replacement designed for compatible applications.
Q: What voltage does this motor require?
A: It operates on 115V, 60Hz power.
Q: Is this a multi-speed motor?
A: Yes. It is rated as a 3-speed motor with a maximum speed of 1650 RPM.
Q: Which systems is this motor compatible with?
A: It replaces select Century, Dometic, and Duo-Therm fan motors matching the listed OEM part numbers. Always verify your original motor specifications before ordering.
Q: Is professional installation recommended?
A: Yes. Installation should be performed by a qualified technician or an experienced installer familiar with electrical HVAC components.
Fit / Measuring / Safety Notes:
- Verify the OEM part number before purchasing.
- Confirm voltage, horsepower, speed, and mounting configuration match your existing motor.
- Disconnect electrical power before servicing equipment.
- Inspect associated components, including fan blades and capacitors, during replacement.
- Professional installation is recommended when working with electrical cooling equipment.
Helpful Links:
Product Details / Specifications:
- Voltage: 115V
- Frequency: 60 Hz
- Horsepower: 1/5 HP
- Amperage: 2.4A
- Speed: 1650 RPM
- Speed Settings: 3-Speed
- Insulation Class: B
- Ambient Temperature Rating: 40°C
- Thermal Protection: Thermally Protected AO
- Motor Identification: Y7L423C043SL (20521)
- Manufacturer Identification: Broad-Ocean Motor (Hai Phong)
- Aftermarket replacement component
Direct Replacement for:
- CENTURY ORV4540
- DOMETIC 3105054.005
- DUO THERM F42B34A61
- DUO THERM F42C40A61
- DUO THERM F42C61A61
- DUO THERM F42E63A61
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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