A bathroom exhaust fan that rattles, slows down, or stops can leave a shower room damp and uncomfortable. The replacement part must match your fan’s model, voltage, rotation, shaft, and mounting arrangement, not merely resemble the failed motor. This roundup separates bathroom-compatible replacements from adjacent fan motors so you can identify the right part before opening the housing.
The Leading Options At A Glance
CONGKAILU QT-110N-B Bathroom Motor
Coolwind 52-Inch Black Ceiling Fan
NuTone S99080180 Motor
NuTone 65878000 Ventilation Motor
XE425 Maxx Air Drum Motor
XE425 Maxx Air Barrel Motor
Why These Options Stand Out
The AIR Vent 35407 Motor is intended for attic fan repairs, not a bathroom exhaust housing. Its direct fit for several named part numbers makes it useful when an AIR Vent attic unit loses its motor, although the 115-volt configuration deserves a careful label check before you order.
OEM means original-equipment manufacturer, so a matching OEM-style replacement can simplify reassembly. The 1/4-horsepower motor reaches 1,600 RPM, meaning 1,600 revolutions per minute, and uses clockwise rotation when viewed from the shaft end.
The Good Stuff
- Directly references 35407 and several other AIR Vent part numbers.
- The flat-ended shaft supports a defined fit in matching assemblies.
- The stated 1,600 RPM speed suits the listed 35407 application.
Things To Consider
- This is an attic fan motor and does not replace a NuTone bathroom exhaust motor.
- Clockwise rotation is measured while facing the shaft, so verify that orientation against your unit.
Key Specs
Built With In Mind
This motor suits a homeowner restoring an AIR Vent attic fan with a confirmed 35407-family part number.
Look Elsewhere When
CONGKAILU QT-110N-B Bathroom Motor is the more suitable option for a NuTone QT-series bathroom exhaust fan.
Repairing a dated NuTone QT fan often comes down to recognizing a long list of similar model numbers. The CONGKAILU QT-110N-B Bathroom Motor covers the QT100 and QT110 families, including common A and B variants, making it a more relevant bathroom-fan candidate than the attic and drum-fan options elsewhere in this roundup.
The assembly includes a blower wheel for the QT-100L configuration, which can help a DIY installer replace the working parts together. You still need to confirm the housing label because similar model numbers can carry different assemblies.
Points In Its Favor
- Broad QT100 and QT110 family compatibility reduces model-number confusion.
- Includes a motor and blower wheel for matching QT-100L assemblies.
- The two-prong blower connection supports a straightforward wiring check against the original plug.
Small Caveats
- The blower wheel is additional mass compared with a motor-only purchase.
- Several listed QT9093 versions appear, so the full housing model deserves verification.
Quick Facts
The Right Fit
This assembly fits a DIY homeowner replacing a confirmed NuTone QT100 or QT110 bathroom fan motor.
Another Choice May Suit
NuTone S99080180 Motor better serves a Broan 509-series ventilation fan owner.
A dead bathroom exhaust motor calls for a repair part, while the Coolwind 52-Inch Black Ceiling Fan is a complete room fan with a light and reversible DC motor. That distinction makes it a useful comparison for deciding between replacing a failed component and installing a different fan, although it will not fit inside a standard bathroom exhaust housing.
For bedrooms, living spaces, or offices, its app and remote controls add visible convenience. Six speeds, a timer, and adjustable lighting make the fan more of a room-management system than a simple motor repair.
Notable Gains
- Remote and app control let you adjust airflow and lighting without reaching the fan.
- Reversible DC motor operation supports seasonal airflow direction changes.
- Stepless brightness adjustment and three color temperatures cover many lighting preferences.
- The flush-mount configuration suits rooms where ceiling clearance is limited.
Where It May Fall Short
- It is a complete ceiling fan rather than a bathroom exhaust motor replacement.
- Installation is intended for a flat ceiling and requires assembly of a much larger unit.
Made For
This fan suits a homeowner replacing an aging room ceiling fan rather than repairing a compact bathroom vent.
Swap It Out When
CONGKAILU QT-110N-B Bathroom Motor is the more appropriate part for a NuTone QT bathroom exhaust assembly.
Model-specific matching matters more than general appearance in a ventilation system. The NuTone S99080180 Motor is a motor-only replacement for Broan 509 revisions A, B, and C, the 509MG-A, and the 509S, giving repair technicians a focused option for those housings.
Its direct replacement references include 15557, P-9204-4, and S11125038. Those identifiers are more useful than a general NuTone name because they let you compare the failed motor label with the replacement before ordering.
Reasons It Performs
- Exact model coverage limits uncertainty during a 509-series repair.
- Multiple original part numbers help locate the correct cross-reference.
- The motor-only format avoids replacing components that remain serviceable.
Honest Caveats
- The package contains the motor rather than a complete fan assembly.
- Compatibility stops with the listed Broan 509 models, so other NuTone or Broan housings need a different part.
Feature Facts
Best Suited To
This motor suits a repair technician or homeowner servicing a clearly identified Broan 509-series fan.
A Better Fit Elsewhere
NuTone 65878000 Ventilation Motor is the stronger choice for the broader set of listed 663, 691, 694, and 696 models.
Older ventilation systems often carry several generations of part numbers, and the NuTone 65878000 Ventilation Motor covers a more varied housing list than the focused 509-only option. It works with 663LN, 663N, 691, 694, 696N, C350C2, C350C3, M697, MH66, 697, and VF305CN models.
Its common references include 101-2379, 101-2466, 301-2797, 301-3040, and 50H2-11020. The broader list can be valuable in an older home, although you should still match the model label rather than rely on physical appearance.
The Upside
- Broad compatibility covers several older NuTone and Broan ventilation families.
- Numerous cross-reference numbers help match a motor mounted deep inside the housing.
- Motor-only packaging focuses the repair on the failed component.
Trade Offs
- The long compatibility list rewards careful label reading rather than guesswork.
- The listed package dimensions require room for the motor in a parts cabinet or work area.
Who Will Love This
This motor suits a homeowner maintaining one of the listed older NuTone or Broan ventilation models.
Reach For A Different Pick When
NuTone S99080180 Motor is more suitable for a repair involving a Broan 509-series housing.
The XE425 Maxx Air Drum Motor belongs in a workshop rather than a bathroom ceiling. Its 1/2-horsepower rating, two speed settings, and 120-volt electrical requirements suit the listed XE425 and BRE425 drum-fan applications, so a bathroom installation would be a poor match.
For a drum-fan restoration, the included capacitor gives you a component commonly needed for starting the motor, while the ball bearing supports the rotating shaft. A pulley is not included, so retain the original pulley and confirm its fit before dismantling the fan.
What Pays Off
- The included capacitor reduces the need to source that starting component separately.
- Two speeds preserve the operating flexibility of compatible drum fans.
- Four mounting studs and supplied nuts support reassembly.
- Ball-bearing construction provides a defined bearing arrangement for the shaft.
Points To Keep In Mind
- The package is for indoor drum fans, not bathroom exhaust equipment.
- The pulley is excluded and the four-stud arrangement must align with the existing housing.
Technical Highlights
Workshop Pick
This motor fits a DIY technician restoring a compatible XE425 or BRE425 indoor drum fan.
Not Your Match When
CONGKAILU QT-110N-B Bathroom Motor is the appropriate option for a NuTone QT bathroom exhaust fan.
The XE425 Maxx Air Barrel Motor closely parallels the Electric Motor Warehouse drum-fan option, making the inclusion of a capacitor the clearest practical distinction. It is designed for XE425 and BRE425 applications, not a bathroom exhaust unit, and remains relevant for workshop repairs and drum-fan restoration.
Its 1,750 and 1,400 RPM settings support the same two-speed format, while the clockwise shaft-end rotation and flat-ended shaft define the mechanical orientation. The four-stud layout and included mounting nuts support installation on a matching motor plate.
The Helpful Details
- Direct references to XE425 and BRE425 models simplify initial identification.
- Two speed settings preserve low- and high-speed operation.
- Included mounting nuts reduce the need for separate fasteners.
- The defined shaft length and flat support pulley positioning.
Potential Compromises
- The pulley is not included, so keep the original component available.
- Its drum-fan application makes it unsuitable for a NuTone bathroom housing.
Feature Overview
Right Fit For
This motor suits a technician restoring a compatible Maxx Air barrel or drum fan.
Where A Sibling Pick Shines
XE425 Maxx Air Drum Motor is the stronger choice when you also need a replacement starting capacitor.
Match the Motor Before Opening the Housing
Start with the label inside or beneath your fan. Record the brand, full model number, motor number, voltage, frequency, rotation, and shaft dimensions before removing anything. A close visual match can still be wrong, especially across NuTone and Broan families.
Check Voltage and Rotation
Your replacement must agree with the existing 115-volt or 120-volt circuit and the required rotation direction. Rotation is sometimes described from the shaft end, so interpret the wording exactly rather than assuming every clockwise motor turns the same way inside your housing.
Understand What the Package Contains
Motor-only products keep the repair focused, while an assembly may include a blower wheel or capacitor. That distinction changes what you must remove during installation and whether a separate electrical component needs to be transferred from the failed unit.
Measure Before Ordering
Shaft diameter, shaft length, flange dimensions, and mounting holes determine whether the motor enters the housing correctly. Reverse rotation alone also needs correction through wiring or model-specific configuration, making an exact cross-reference preferable.
Common Mistakes Worth Avoiding
The most consequential error is treating a visually similar motor as a drop-in fit. Voltage, rotation, shaft shape, and mounting geometry must all align, and a ventilation motor from another housing may carry different connections.
Avoid Oversimplified Part Numbers
A partial model number can lead to the wrong assembly. Check the entire label and any original part number, then compare the electrical specifications before removing the working blower wheel or mounting hardware.
When Paying More Pays Off
A higher-priced option can be justified by a broader or more precise compatibility range, a bundled blower wheel, or an included capacitor. The extra cost matters when it removes a second purchase or reduces uncertainty during a difficult installation, but it does not compensate for a basic fit mismatch.
Match Value to the Repair
Motor-only pricing works well when the housing, blower wheel, capacitor, and mounts remain serviceable. A bundled assembly can be more useful for a complete restoration, yet the part number and electrical rating still matter more than the package size.
Frequently Asked Questions
How do I identify the correct bathroom exhaust motor?
Read the model and motor numbers from the fan label, then compare them with the replacement’s stated compatibility and cross-references. Voltage, rotation, shaft size, and mounting style provide a second layer of confirmation.
Are all NuTone bathroom fan motors interchangeable?
No, compatibility depends on the housing family and part number. The NuTone S99080180 Motor covers listed Broan 509 models, while the NuTone 65878000 Ventilation Motor covers a different group of 663, 691, 694, 696, and related models.
Can a ceiling fan motor replace a bathroom exhaust motor?
A ceiling fan and a bathroom exhaust fan serve different airflow and housing requirements. The Coolwind 52-Inch Black Ceiling Fan is a complete room fan and does not serve as a replacement motor for a compact bathroom vent.
What should I check besides the model number?
Check voltage, frequency, rotation, shaft dimensions, electrical connection, and mounting arrangement. The part can carry the right number while still differing in one mechanical or electrical detail.
What should be disconnected before replacing a motor?
Turn off the electrical supply and disconnect the wiring before handling the fan housing. Follow the installation instructions for your specific fan and confirm the replacement’s connection requirements before reconnecting anything.
Final Verdict
The CONGKAILU QT-110N-B Bathroom Motor is the clearest fit among these choices for a confirmed NuTone QT-series bathroom exhaust fan. NuTone S99080180 Motor and NuTone 65878000 Ventilation Motor cover different housing families, while the attic, ceiling, and drum-fan options belong to separate categories. Confirm the label and mechanical specifications before ordering, since a precise match matters more than a persuasive listing.