Best Bath Exhaust Fan Motor Replacements for Nu-Tone Broan Fans
Choosing the right bath exhaust fan motor replacement ensures reliable ventilation, low noise, and a long service life for your bathroom setup. The selections below focus on universal SM550/50 CFM motors that fit Nu-Tone, Broan, and similar models. Each product is designed for straightforward installation, compatible wiring, and solid performance across typical bathroom conditions.
| Product | Brand | CFM | Voltage | Notes |
|---|---|---|---|---|
| Siasky Universal Bath Vent Motor Kit | Siasky | 50 | 120V | Broad compatibility with Nu-Tone, Broan, Uppco, Bay, Sears, Dayton |
| AMI PARTS SM550 Motor Kit | AMI PARTS | 50 | 120V | Replaces multiple model numbers including C65878, EM550 |
| PANDEELS 2-Pack SM550 Motors | PANDEELS | 50 | 120V | Two-pack; includes 4 1/2″ blade |
| FRIGESWIFT SM550 Replacement | FRIGESWIFT | 50 | 120V | CCW/CW reversible option; multiple compatibility |
| Ceoighe Replacement Motor Kit | Ceoighe | 50 | 120V | Sturdy 3/16″ shaft; 6″ wire length |
Siasky Universal Bath Vent Motor Kit
The Siasky motor kit is a 120V, 50 CFM replacement with a quiet profile. Its precision-balanced 5/8 coil pack and aerodynamic blades help keep noise under 1.5 sones, making operation unobtrusive in most bathrooms. The motor shaft measures 3/16″ x 1 3/4″, with a 6″ wire length and two-prong plug for straightforward wiring. A 1 7/8″ center mounting stud and a 4 5/8″ x 1 1/8″ blade size ensure compatibility with many Nu-Tone Broan and related units. Note the kit emphasizes broad compatibility, including Sears, Dayton, and other brands.
References to compatible replacement families indicate broad applicability, but installers should verify their model numbers before swapping. The kit is designed to drop into units that use the 50 CFM class and similar shaft dimensions, streamlining the upgrade process without replacing the entire fan housing.
AMI PARTS SM550 Universal Motor Kit
The AMI PARTS SM550 motor kit is a direct replacement for a wide range of models, including Nu-Tone and Broan families. It operates at 120V, 60Hz, 0.29A, delivering about 50 CFM at 3000 RPM. The blade diameter is 4 1/2″ with a 1″ blade height, and the shaft sits at roughly 3/16″ x 1 3/4″. A 6″ wire length with a 2-prong plug supports quick installation. Mounting studs are 1 7/8″ on center, with a 5/8″ coil stack. Ideal when you need compatibility across several older units or multiple bathrooms in a home or condo.
Manufacturers emphasize secure, safe installations and compatibility with common replacement parts such as EM550, EM750, C01575, and 65100. Potential buyers should confirm that their current motor part numbers align with the listed replacements to ensure a smooth swap.
PANDEELS SM550 Universal Motor Kit (2-Pack)
The PANDEELS two-pack SM550 motor kit is designed for universal use with Nutone Broan, Uppco, Bay motors, Sears 569, Dayton, and more. Each kit includes a 4 1/2″ blade, 1/2″ or 1″ blade height considerations, a 3/16″ x 1 3/4″ shaft, and a 6″ wire with a two-prong plug. The 50 CFM, 120V, 3000 RPM performance suits standard bathroom ventilation needs. The kit’s dual-pack is convenient for households with multiple bathrooms needing identical replacements.
Compatibility notes cover common model numbers like 65100, EM550, EM750, C65878, VFM100, and E498-1. As always, it is prudent to verify the exact old motor part number and blade geometry before purchase to avoid compatibility issues during installation.
PANDEELS Universal SM550 Motor With Blade
This PANDEELS offering reiterates a universal SM550 motor with a 6″ wire, 3/16″ x 1 3/4″ shaft, and 4 1/2″ blade, geared for Nutone Broan and similar brands. The 50 CFM, 120V, 3000 RPM specification aligns with standard bathroom venting needs, and the reversible CCW/CW feature adds flexibility if a housing requires a different motor rotation direction. The packaging promotes broad compatibility and straightforward installation for DIY enthusiasts and pros alike.
Ceoighe 50CFM Replacement Motor Kit
The Ceoighe motor kit targets Nu-Tone Broan replacements with 50 CFM capacity, 120V, 0.65 amps, and 3000 RPM. The shaft measures 3/16″ x 1 3/4″ and a 6″ wire length with a two-prong plug supports straightforward hookup. The kit is promoted as safe and durable for bathroom exhaust use, suitable for retrofit projects where replacing the entire fan is impractical or unnecessary. Installation notes emphasize proper power disconnection and adherence to any specific model requirements.
AMI PARTS SM550 2-Pack – Replacements
This listing reinforces the two-pack AMI PARTS SM550 motors as compatible replacements for numerous Nu-Tone and Broan models, including C65878, VFM100, E498-1, and EM550/EM750. Specifications mirror the standard 120V, 60Hz, 0.29A, 50 CFM, 3000 RPM, with a 4 1/2″ blade and a 3/16″ x 1 3/4″ shaft. The 1 7/8″ mounting centers and 6″ wire length with a two-prong plug support simple installation and quick swaps across multiple bathrooms.
Buying Guide: Key Purchase Considerations
- Compatibility: Verify the model number of your current motor (for example, EM550, EM750, C01575, 65100) and ensure the replacement explicitly lists it in the compatibility notes. Look for universal SM550 or 50 CFM listings if you have multiple Nu-Tone or Broan units.
- CFM and RPM: Most bathroom fans in the 50 CFM class aim for balanced airflow without excessive noise. Check the RPM (around 3000) and ensure the motor can deliver sufficient airflow for your bathroom size.
- Electrical and wiring: Confirm voltage (110-120V in the US) and wire length (6″ is common). If your current unit uses a different plug configuration, you may need a simple adapter or a direct-wire replacement, depending on local codes.
- Shaft and blade dimensions: Shaft sizes (3/16″ x 1 3/4″) and blade diameter (4 1/2″ or similar) matter for fit within the housing and the fan blade clearance.
- Noise and efficiency: Noise levels around 1.5 sones or lower are typical for quiet operation. A precision-balanced design helps reduce vibrational noise during operation.
- Installation approach: Consider whether you need a plug-and-play replacement with a pre-wired harness or a kit that requires direct wiring. Some kits come with a blower wheel for optimized airflow.
- Warranty and support: Look for manufacturers offering replacement parts and clear installation guidance, especially for multi-unit residential settings where reliability matters.
- Safety: Always disconnect power before handling any electrical components. Use gloves and follow the manufacturer’s installation instructions to avoid injury or damage to the housing.