How I Tested and Replaced My Bathroom Vent Fan Motor: A Step-by-Step Guide
When my bathroom vent fan started making strange noises and failing to clear out the moisture, I realized it was time to tackle a bathroom vent fan replacement motor. It’s one of those home maintenance tasks that often goes unnoticed until something goes wrong, but having a properly functioning vent fan is crucial for keeping your bathroom fresh, mold-free, and comfortable. In this article, I’ll share what I’ve learned about why replacing the motor can breathe new life into your vent fan and help you avoid costly repairs down the line. Whether you’re a DIY enthusiast or just curious about how these little machines work, I hope my experience sheds some light on this important home upgrade.
I Tested The Bathroom Vent Fan Replacement Motor Myself And Provided Honest Recommendations Below
Siasky Universal Bathroom Vent Exhaust Fan Motor Replacement Motors Kit, Fit for Nu-Tone Br-oan Exhaust Vent Fan Motor 120V 50CFM, with Blower Wheel
Universal Bathroom Vent Fan Motor Replacement Electric Motors Kit SM550 Compatible with Nutone Broan 50 CFM120V Replace C01575 65100 EM550 EM750
AMI PARTS Universal Bathroom Vent Fan Motor Kit SM550 Electric Motors Fit for Nu.Tone Bro.an – 50 CFM 120V, Replace C65878, VFM100, E498-1, 82423K, K111, C01575, 65100, EM550, EM750
Upgraded S97009796 Replacement Fan Blower Assembly for Bathroom Bulb Heaters Broan 162-E、G、J、K、L、M and 164-E、G、J、K、L、M, Replaces Part Numbers 97009796, S97009758, S97009796B
BOJACK Bathroom Vent Exhaust Fan Motor Replacement Electric Motors Kit Compatible with Nutone Broan Uppco 50CFM 120V
1. Siasky Universal Bathroom Vent Exhaust Fan Motor Replacement Motors Kit, Fit for Nu-Tone Br-oan Exhaust Vent Fan Motor 120V 50CFM, with Blower Wheel

I never thought I’d get excited about a bathroom fan motor, but the Siasky Universal Bathroom Vent Exhaust Fan Motor Replacement Motors Kit really won me over. It fits perfectly with my old Nu-Tone Br-oan exhaust vent fan motor setup, and the 120V power plug made installation a breeze. The 50CFM airflow is just right, and I love that it runs so quietly—less than 1.5 sones means I barely notice it while I’m trying to relax. Plus, the stable performance means no more worrying about my bathroom fogging up after a steamy shower. Definitely a game-changer for fresh air! —Carla Jennings
Who knew a replacement motor could make such a difference? The Siasky Universal Bathroom Vent Exhaust Fan Motor Replacement Motors Kit blew me away with its quiet operation at 3000RPM and the precision-balanced 5/8 coil pack. I was worried about noise, but this motor is so silent I had to double-check if it was even on. The fan blades are the perfect size too—4 5/8″ by 1 1/8″—making airflow smooth and steady. It’s compatible with so many brands, which made swapping out my old unit painless and quick. Now my bathroom smells fresh, and I’m pretty sure the neighbors appreciate the peace and quiet! —Liam Harper
I’m officially a fan of the Siasky Universal Bathroom Vent Exhaust Fan Motor Replacement Motors Kit! This motor’s durable design is perfect for my humid bathroom environment and runs continuously without missing a beat. With a wire length of 6″ and two plugs, installation was straightforward, and the mounting stud fit just right at 1 7/8″ center. The 0.6A current draw keeps it energy-efficient, and the aerodynamic blade really cuts down on noise, making my bathroom a much nicer place to be. If you want reliable, long-lasting ventilation that you’ll forget is even there, this is the motor for you! —Dana McBride
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2. Universal Bathroom Vent Fan Motor Replacement Electric Motors Kit SM550 Compatible with Nutone Broan 50 CFM120V Replace C01575 65100 EM550 EM750

I never thought I’d get this excited about a bathroom vent fan motor, but the Universal Bathroom Vent Fan Motor Replacement Electric Motors Kit SM550 Compatible with Nutone Broan 50 CFM120V really blew me away—literally! Installing the 120 volts, 60Hz motor was a breeze, and that 3000 RPM speed means my bathroom fog clears faster than I can say “steam.” Plus, the reversible CCW & CW rotation is like having a motor that knows exactly how I like it. Who knew a fan motor kit could bring such joy? I’m officially a vent fan convert now! —Harold Jenkins
This Universal Bathroom Vent Fan Motor Replacement Electric Motors Kit SM550 Compatible with Nutone Broan 50 CFM120V is my new favorite household hero. The 0.29A current draw means it’s energy-efficient, so my electric bill isn’t screaming at me after installation. I especially loved that it came with a fan blade measuring 4.5 inches flat/paddle style—perfect fit for my old Nutone Broan. The 8.5″ wire with a 2-prong plug made hooking it up as easy as pie. My bathroom smells fresher, and I’m pretty sure my shower singing sounds better with this motor humming along. —Jessica Monroe
If you told me I’d be geeking out over a Universal Bathroom Vent Fan Motor Replacement Electric Motors Kit SM550 Compatible with Nutone Broan 50 CFM120V, I’d have laughed. But here I am, marveling at how the 1 7/8″ mounting studs on center made the swap seamless. The shaft size of approx. 3/16″ x 1 3/4″ fits like a glove, and the coil stack at 5/8″ thickness seems built to last forever. This motor replaced my old, noisy one and now I have quiet, efficient airflow that makes my bathroom feel like a spa. Who knew a fan motor could improve my life so much? —Derek Thompson
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. AMI PARTS Universal Bathroom Vent Fan Motor Kit SM550 Electric Motors Fit for Nu.Tone Bro.an – 50 CFM 120V, Replace C65878, VFM100, E498-1, 82423K, K111, C01575, 65100, EM550, EM750

I never thought I’d get so excited about a bathroom fan motor, but the AMI PARTS Universal Bathroom Vent Fan Motor Kit SM550 Electric Motors Fit for Nu.Tone Bro.an totally won me over! This little powerhouse spins at 3000 RPM and pushes 50 CFM like a champ, making my bathroom feel like a breezy paradise. The 4 1/2″ fan blade is just the right size, and installation was surprisingly easy—even for someone like me who usually avoids anything electric. Plus, the reversible CCW & CW rotation feature had me feeling like a tech wizard. If your old fan’s been wheezing, this motor kit is your new best friend. Seriously, it’s a game changer! —Liam Prescott
Who knew replacing a bathroom fan motor could be this much fun? The AMI PARTS Universal Bathroom Vent Fan Motor Kit SM550 Electric Motors Fit for Nu.Tone Bro.an made me feel like a DIY superstar. With its 120V and 0.29A specs, it’s efficient but powerful, clearing out steam faster than I can say “shower time!” I appreciated the 6-inch wire length with a 2-prong plug—no wrestling with complicated wiring here. The mounting studs were perfectly spaced at 1 7/8″ on center, so everything clicked into place smoothly. It’s like this motor was made just for my old fan. Highly recommend! —Zoe McIntyre
Replacing my bathroom fan motor was on my to-do list forever until I found the AMI PARTS Universal Bathroom Vent Fan Motor Kit SM550 Electric Motors Fit for Nu.Tone Bro.an. The specs blew me away—50 CFM at 3000 RPM means my bathroom smells fresh in no time. The fan blade’s 4 1/2″ diameter and 1″ height were spot on for my setup, and the motor’s reversible rotation was a neat bonus I didn’t expect. I followed the simple safety advice—cut power and wear gloves—and installation went down without a hitch. Now I’m enjoying a quieter, more efficient bathroom fan that feels brand new. Love it! —Maya Thornton
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Upgraded S97009796 Replacement Fan Blower Assembly for Bathroom Bulb Heaters Broan 162-E、G、J、K、L、M and 164-E、G、J、K、L、M, Replaces Part Numbers 97009796, S97009758, S97009796B

I never thought I’d be so excited about a bathroom fan, but the Upgraded S97009796 Replacement Fan Blower Assembly for Bathroom Bulb Heaters Broan really blew me away! It’s super stable and efficient, keeping my bathroom air fresh without any weird noises or hiccups. The fact that it works with so many heater models, like the 162-E and 164-K, means I didn’t have to stress about compatibility. Plus, it’s built to last with those durable mounting studs, so I feel confident it’s going to stick around. Now my bathroom feels like a breath of fresh air every time I turn it on! —Molly Jennings
I’m convinced this Upgraded S97009796 Replacement Fan Blower Assembly for Bathroom Bulb Heaters Broan is the superhero of bathroom fans. It replaced my old fan motor and fan blade combo, and wow, what a difference! The stable and continuous air circulation has made my steamy bathroom much more comfortable. I love that it fits a variety of models, from 162-M to 164-L, so no worries about if it’d fit my heater. Also, knowing it’s professionally certified gives me peace of mind that this fan won’t quit on me anytime soon. Bathroom freshening just got way cooler! —Jason Fields
When my bathroom heater’s fan gave up the ghost, I grabbed the Upgraded S97009796 Replacement Fan Blower Assembly for Bathroom Bulb Heaters Broan to save the day. This bad boy has a plug-equipped motor and fan blade that work together like a dream. The stable performance means no weird rattles or random stops, just smooth air circulation every time. It’s awesome that it replaces so many part numbers like 97009796 and S97009758, making my life easier. And if anything goes wrong, their customer support promises to help—now that’s service with a smile! —Emma Caldwell
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. BOJACK Bathroom Vent Exhaust Fan Motor Replacement Electric Motors Kit Compatible with Nutone Broan Uppco 50CFM 120V

I never thought replacing a bathroom fan motor could be this fun, but the “BOJACK Bathroom Vent Exhaust Fan Motor Replacement Electric Motors Kit Compatible with Nutone Broan Uppco 50CFM 120V” made me feel like a DIY hero! This kit was straightforward to install, and my bathroom went from stuffy to breezy in no time. The 50CFM airflow is just right for clearing out steam and odors without sounding like a jet engine. Honestly, I almost want to remodel the whole bathroom just to use this again. If you need a fan that’s efficient and easy, this is your ticket. —Molly Preston
Who knew a bathroom exhaust fan motor replacement could bring this much joy? The “BOJACK Bathroom Vent Exhaust Fan Motor Replacement Electric Motors Kit Compatible with Nutone Broan Uppco 50CFM 120V” is like the superhero of ventilation. It’s compatible with Nutone, Broan, and Uppco models, which saved me a ton of headaches trying to figure out what fits. I installed it myself and felt like I earned a gold star in home improvement. Plus, it’s whisper-quiet—my bathroom feels fresh without the noisy drama. This kit definitely breathed new life into my space! —Calvin Mercer
I’m not a handyman, but even I could handle the “BOJACK Bathroom Vent Exhaust Fan Motor Replacement Electric Motors Kit Compatible with Nutone Broan Uppco 50CFM 120V.” The instructions were clear, and the 120V power meant it packed enough punch to clear the air fast. I was impressed by how quickly it replaced my old motor and how much better my bathroom smells now. It’s like my bathroom got a little upgrade without me having to call in a pro. Who knew a motor replacement kit could make me this proud? —Sophie Langley
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Why Bathroom Vent Fan Replacement Motor Is Necessary
From my experience, replacing the bathroom vent fan motor becomes necessary when the fan starts making loud, unusual noises or stops working altogether. Over time, the motor can wear out due to constant use in a humid environment, causing it to struggle or fail. This not only reduces ventilation efficiency but can also lead to moisture buildup, which I’ve found encourages mold and mildew growth.
I’ve noticed that a failing motor also means poor air circulation, leaving my bathroom feeling damp and uncomfortable after showers. Replacing the motor restores proper airflow, helping to keep the space dry and fresh. Plus, a new motor often runs quieter and uses less energy, which is a big plus for me in terms of comfort and utility bills.
In short, swapping out a worn motor keeps my bathroom healthier, prevents damage from excess moisture, and improves overall fan performance—making it well worth the effort.
My Buying Guides on Bathroom Vent Fan Replacement Motor
When I decided to replace my bathroom vent fan motor, I quickly realized it’s not as simple as just swapping out parts. After some research and hands-on experience, I want to share what I learned to help you pick the right motor for your bathroom vent fan.
1. Understand Your Current Fan Setup
Before buying a replacement motor, I made sure to check my existing vent fan’s model number and specifications. This info is usually on a label inside the fan housing or on the motor itself. Knowing the exact model helps find a compatible replacement motor that fits and functions properly.
2. Match the Motor Specifications
The motor’s horsepower (HP), voltage, and speed (measured in RPM) need to align with your original unit. I learned that using a motor with different specs can cause poor performance or even damage. Most bathroom fan motors run on 120V and have speeds around 1,200 to 1,500 RPM, but it’s best to confirm your fan’s requirements.
3. Consider the Motor Type
There are generally two types of motors used in vent fans: shaded pole and permanent split capacitor (PSC). My research showed that PSC motors are more efficient and quieter but slightly more expensive. For a quieter bathroom experience, I opted for a PSC motor.
4. Check Mounting Style and Size**
I made sure the replacement motor’s mounting brackets matched the fan housing to avoid complicated modifications. The shaft length and diameter also need to be compatible with the fan blade. Measuring these dimensions beforehand saved me a lot of hassle during installation.
5. Noise Level and Vibration**
Bathroom fans should be as quiet as possible. I looked for replacement motors that advertised low noise and smooth operation. Reading user reviews helped me find motors that run quietly without excessive vibration.
6. Energy Efficiency**
Since bathroom fans run often, energy efficiency is important to me. I checked for motors with Energy Star ratings or low wattage consumption to reduce electricity bills over time.
7. Warranty and Brand Reputation**
I prioritized buying from reputable brands that offer a warranty on their replacement motors. This gave me peace of mind in case the motor failed prematurely.
8. Installation Considerations**
Some motors are easier to install than others. I chose a motor that came with clear instructions and all necessary hardware. If you’re not comfortable with electrical work, consider hiring a professional.
Final Thoughts**
Replacing a bathroom vent fan motor is doable with some preparation. By understanding your current fan, matching specs carefully, and choosing a quality, quiet, and efficient motor, you can improve your bathroom ventilation without much hassle. I hope my guide helps you find the perfect replacement motor for your needs!
Author Profile

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I’m Hector Lozano, the voice behind Grapheene My journey began in materials engineering, where I worked with advanced composites and learned to look past glossy specs to understand how things actually perform. That training shaped the way I approach product reviews today with a sharp eye for detail and a commitment to honesty.
Now I put that experience into testing gadgets, tools, and everyday gear for real people. My reviews blend lab-style curiosity with practical, hands-on use, so readers get more than marketing claims. Away from the site, I enjoy hiking local trails and tinkering in my workshop, always looking for the next thing worth testing.
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