20511 DC 12V 40W Motor Replacement
Overview:
The DC 12V Motor 40W 20511 is an aftermarket replacement blower motor designed to replace Suburban part numbers 231706 and 233101 in compatible RV furnace applications. A worn or failed blower motor can contribute to weak airflow, unusual noise, vibration, inconsistent heating, or unreliable furnace operation.
Operating on 12V DC with a 40W rating and 2800 RPM speed, this continuous-duty motor provides a practical replacement when the existing motor matches the listed part numbers and physical specifications. Because furnace configurations can vary, compare the original motor's part number, dimensions, shaft lengths, mounting arrangement, and electrical connection before ordering.
Key Features:
- Aftermarket replacement for Suburban 231706 and 233101
- 12V DC, 40W motor for compatible RV furnace applications
- 2800 RPM operating speed
- Continuous-duty design for furnace operation
- Dual-shaft configuration with specified shaft lengths
- Two-wire leads with insulated female terminals
- Two mounting studs located on the short-shaft side
Important Information:
This motor is not stated to fit every Suburban RV furnace. Compatibility should be confirmed using the existing motor part number and physical specifications before purchase.
If the furnace has weak airflow, unusual noise, vibration, or inconsistent operation, the motor may be one possible cause. Other furnace or blower components should also be inspected for wear or damage as appropriate.
This product is an aftermarket replacement and is not identified as an OEM Suburban motor.
FAQs:
Q: Will the 20511 motor fit every Suburban RV furnace?
A: No. Compatibility is limited to appropriate applications using the listed replacement part numbers and matching specifications. Do not assume fit based on the Suburban brand alone.
Q: Is this an OEM Suburban motor?
A: No. It is an aftermarket replacement designed for compatible applications.
Q: Does the motor include electrical connections?
A: The motor has two wire leads with insulated female terminals.
Q: What should I compare before ordering?
A: Compare the existing part number, voltage, motor case dimensions, shaft lengths, mounting stud arrangement and spacing, and electrical connection with the specifications listed for this motor.
Q: Can I install this furnace motor myself?
A: Installation may be appropriate for someone experienced with RV furnace components and electrical systems. If you are unfamiliar with this type of repair, professional installation is recommended.
Fit / Measuring / Safety Notes:
- Verify the existing motor part number before ordering.
- Confirm the furnace application uses a 12V DC motor.
- Compare the 4" x 2-3/8" motor case dimensions with the existing motor.
- Verify both shaft lengths: 2-1/4" and 1-11/16".
- Confirm the two mounting studs are located on the short-shaft side and spaced 2-1/8" center-to-center.
- Compare the electrical connection with the existing installation.
- Do not rely on furnace brand alone to determine compatibility.
- Disconnect power to the RV furnace before inspection or installation.
- Inspect surrounding blower and furnace components for wear or damage when replacing a failed motor.
- Follow applicable furnace manufacturer service procedures.
- Professional installation is recommended when the installer is not experienced with RV furnace electrical and mechanical systems.
Helpful Links:
Product Details / Specifications:
- Product: Replacement RV furnace blower motor
- Motor Number: 20511
- Voltage: DC 12V
- Power: 40W
- Speed: 2800 RPM
- Duty Rating: Continuous duty
- Motor Case Size: 4" x 2-3/8" diameter
- Shaft One Length: 2-1/4"
- Shaft Two Length: 1-11/16"
- Electrical Connection: Two-wire leads with insulated female terminals
- Mounting: Two mounting studs on the short-shaft side
- Mounting Stud Spacing: 2-1/8" center-to-center
- Part Type: Aftermarket replacement
Direct Replacement for:
- SUBURBAN 231706
- SUBURBAN 233101
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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